dst engineering team background

24 Marlborough LaneGlen Mills, PA 19342-1519

Voice: 610-358-0785FAX: 610-358-2776

Mobil: 215-806-0133

E-mail: [email protected]: www.gear-doc.com

Engineering Team Members Background Information

Raymond J. Drago, P. E.Chief Engineer – Gear Technologist

Roy J. CunninghamSenior Metallurgical Engineer

Steve CymbalaSenior Drives Engineer

Joseph W. Lenski, Jr.Senior Bearing Engineer

http://www.gear-doc.com/

mailto:[email protected]

Raymond J. Drago, P. E.Chief Engineer – Gear Technologist

document.docx 2 of 61

1RESUME'

Raymond J. Drago, PE, Chief Engineer – Gear TechnologistDrive Systems Technology, Inc.

Mechanical Power Transmission Consultants24 Marlborough Lane

Glen Mills, PA 19342-1519V: 610-358-0785 F: 610-358-2776 Web: www.gear-doc.com; E-Mail: [email protected]

Raymond J. Drago is Chief Engineer of Drive Systems Technology, Inc., a Mechanical Power Transmission Consulting Organization that he founded in 1976. Mr. Drago holds a Master of Structural Engineering degree from Drexel University (1980), a Bachelor of Mechanical Engineering Degree from The City University of New York (1967), a Master of Engineering degree from The Pennsylvania State University (1973), and is a registered Professional Engineer in the States of Pennsylvania and Minnesota.

He also served as Senior Technical Fellow1 - Gear Technology of The Boeing Company - Helicopters Division until his retirement from Boeing after 37 years of service. Mr. Drago's primary interests at Boeing were in the areas of applied mathematics, kinematics, analytical gear system design and synthesis, finite element analysis, and computer programming. He was also responsible for the continued development and operation of the company's computer aided gear design systems as well as many related computer programs, including a complete Gear Finite Element Method Analysis System.

Mr. Drago has been and is currently involved in the analysis, design, manufacture, assembly, and test of many gear systems ranging from small wind tunnel model drives, through dedicated research test specimens, to full scale helicopter and marine hardware and a very wide variety of industrial gear/bearing systems. This involvement includes application of computer-aided design, development, supervision of assembly, and testing. He has also been Project Engineer and Principal Investigator on many drive system related research programs ranging from theoretical investigation of nongeared speed reduction concepts to the development of new gear tooth forms.

Mr. Drago is an active participant in the American Helicopter Society (AHS), American Society of Mechanical Engineers (ASME), Society of Tribologists and Lubrication Engineers (STLE), the American Gear Manufacturers Association (AGMA), and the Association of Iron and Steel Engineers (AISE). Within the framework of these activities, he has published over one hundred twenty technical reports, society technical papers, and magazine articles. AGMA has presented Mr. Drago with the Technical Division Executive Committee Award "...for his outstanding contributions to the art of Gear Design and Utilization." The National Aeronautics and Space Administration has also presented him with two awards for his development of a NASTRAN Analysis System for Spiral Bevel Gears and his work on determining the Influence of Contact Ratio And Tooth Form on Gearbox Noise, noting that his "...innovation as an item of potential

1 According to the citation issued by Boeing Chairman and Chief Executive Officer Frank Shrontz, his appointment as a Technical Fellow of The Boeing Company is in recognition of his "...exceptional judgment and competence...not only at Boeing but throughout industry."




utility and value to others beyond the aerospace field is a significant contribution to the benefits accruing to the Nation from our national aerospace programs." He has also been awarded two patents "High Profile Contact Ratio, Non-Involute Gear Tooth Form and Method" (4,640,149) defining a new and unique gear tooth form and “High Ratio, Reduced Size Epicyclic Gear Transmission for Rotary Wing Aircraft With Improved Safety and Noise Reduction” (6,966,865) defining a unique High Ratio, Ultra Safe, High Contact Ratio, Staggered & Intermeshed Planet, Double Helical Epicyclic Gear System that provides a redundant load path for increased safety and reduced operating noise level.

In his role as Chief Engineer of Drive Systems Technology, Inc. Mr. Drago is active in all areas of mechanical power transmission. These activities include the design and analysis of drive systems for such diverse areas as large, high speed paper, printing and cardboard machinery, commercial marine drives, heart pumps, large oil field valves, high speed cable climbing devices, high speed gas turbine/generator sets, special automotive racing gearboxes, artificial limbs, mine shaft hoists, air and water cooled condensers, miniature gear motors (120 IN-OZ Torque range), automatic bolt torquing devices, very large mining & mill gears, municipal & industrial water and waste water processing system drives and small private helicopter conversions (piston to turbine engines). He has also provided consulting services aimed at cost and noise reductions for many consumer products such as electric drills, home mixers, vacuum cleaners, and ice crushers. Mr. Drago has provided consulting services in field failure analysis and patent and trade secret litigation by detailing the State-of-the-Art in mechanical power transmission systems and interpreting technical information for the legal staff. He has also served as an expert witness in Federal Court. He has provided design and troubleshooting services for large mixing and aeration equipment drives, very large (40 foot diameter) steel, aluminum, and minerals processing mill drives, automotive transmissions, and precision tool positioning tables, among a host of others. Over three hundred clients, across the United States, Canada, South America, Europe, and Australia, have been served by Drive Systems Technology, Inc.

He has also prepared and delivered almost two hundred seminars dealing with various aspects of gear design and analysis, served as a Visiting Professor of Mechanical Engineering (at the University of Delaware & University of Pisa, Italy). Mr. Drago was selected to author the Gear Drive Section of the Bureau of Mines Hoist Specification, The Helical Gear Section of the New McGraw-Hill Handbook of Machine Design, the Basic Gear Geometry section of the Second Edition of the McGraw-Hill Gear Handbook, Chapters 8 & 15 of the SAE Gear Design - Manufacturing and Inspection Manual, Chapter 4 Helical Gears of McGraw-Hill's GEARING, A Mechanical Designer's Workbook. He has also published a book based on his seminar notes entitled Fundamentals of Gear Design (Butterworth Publishers). Mr. Drago also authored the Gears and Work, Power, & Machines Chapters for the New Book of Knowledge Encyclopedia published by GROLIER, Inc, Hawleyville, CT.

In 2009, Mr. Drago was the first recipient of the American Gear Manufacturers Association “Distinguished Service Award.” This award is presented to an individual who has demonstrated exceptional ability in the field of gear technology and has also provided service to the gear community in the form of extensive educational efforts.

1PUBLICATION LIST


Drive Systems Technology, Inc.Mechanical Power Transmission Consultants

Raymond J. Drago, PE, Chief Engineer – Gear Technologist24 Marlborough Lane

Glen Mills, PA 19342-1519V: 610-358-0785 F: 610-358-2776 Web: www.gear-doc.com E-Mail: [email protected]

1. DESIGN, FABRICATE, TEST, AND EVALUATE SPIRAL BEVEL SUPPORT BEARINGS (TAPERED ROLLER)December 1972 - A. J. Lemanski, J. W. Lenski, Jr., and R. J. Drago, Contract DAAJ02-71-0025, Eustis Directorate, U. S. Army Mobility and Research Development Laboratory, Fort Eustis, VA

2. TEST RESULTS REPORT - GEAR TOOTH FORM EVALUATION, PE 327, HLHNovember 1973 - R. J. Drago, Contract DAAJ01-71-C-0840 (P40), Boeing Document No. T301-10253-1

3. AN ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF THE CONTACT CONDITIONS AT THE ROLLER END/CONE RIB OF A TAPERED ROLLER BEARINGNovember 1973 - R. J. Drago and J. W. Lenski, Jr., AGMA Paper No. 109.32, American Gear Manufacturers Association, 1973 Semi-Annual Meeting, New Orleans, Louisiana

4. NUTATING MECHANICAL TRANSMISSION (MAROTH DRIVE PRINCIPAL)January 1974 - R. J. Drago and A. J. Lemanski, Contract N00014-72-C-0272, Department of the Navy, Office of Naval Research, Arlington, VA, DDC No. AD777988

5. HEAVY LIFT HELICOPTER BRINGS UP DRIVE IDEASMarch 1974 - R. J. Drago, Power Transmission Design, Pages 49-63

6. HIGH FREQUENCY VIBRATION MONITORING FOR GEAR/BEARING SYSTEM FAILURE DETECTIONOctober 1975 - R. J. Drago and D. B. Board, AGMA Paper No. 109.36, American Gear Manufacturers Association 1975 Semi-Annual Meeting, Montreal, Canada

7. LOAD CAPACITY RATING OF INVOLUTE SPLINESFebruary 1976 - R. J. Drago, Machine Design, Pages 104-109

8. HELICOPTER DRIVE SYSTEM DESIGN WITH APPLICATIONS OF ADVANCED TECHNOLOGYApril 1976 - Invited Lecture, R. J. Drago, Rochester Section, American Society of Mechanical Engineers, Rochester, NY

9. LIMITATIONS OF CURRENT TOOTH ROOT STRESS ANALYSIS


May 1976 - R. J. Drago, AGMA Paper No. 220.20, American Gear Manufacturers Association, Aerospace Gearing Committee Meeting, Atlanta, Georgia

10. HIGH FREQUENCY VIBRATION MONITORING TECHNIQUES FOR INCIPIENT FAULT DETECTION IN SPIRAL BEVEL GEAR SYSTEMSApril 1977 - R. J. Drago and R. B. Aronson, AGMA Paper No. 109.38, American Gear Manufacturers Association, Aerospace Gearing Committee Meeting, Orlando, FL

11. PREDICTING THE OCCURRENCE AND MONITORING THE PROGRESSION OF FAILURES IN ROTATING MACHINERYOctober 1977 - R. J. Drago, Illinois Institute of Technology, National Conference on Power Transmission, Chicago, IL

12. ENGINEERING SERVICES TO CONDUCT QUALIFICATION TESTING OF PRECISION FORGED SPIRAL BEVEL GEARSOctober 1977 - R. J. Drago, AVRADCOM Report No. 76-45, U. S. Army Aviation Research and Development Command, St. Louis, MO

13. PRELIMINARY SURFACE LOAD CAPACITY EVALUATION OF PRECISION, INTEGRALLY FORGED SPIRAL BEVEL GEARSNovember 1977 - R. J. Drago, AGMA Paper No. 219.09, American Gear Manufacturers Association, 1977 Semi-Annual Meeting, New Orleans, LA

14. HELICOPTER TRANSMISSION VIBRATION AND NOISE REDUCTION PROGRAM - VOLUME 1, TECHNICAL REPORTMarch 1978 - R. J. Drago, R. W. Howells, J. W. Lenski, Jr., E. G. Schaffer, and J. J. Sciarra, USARTL-TR-78-2A, Applied Technology Laboratory, U. S. Army Research and Technology Laboratories (AVRADCOM), Fort Eustis, VA

15. HELICOPTER TRANSMISSION VIBRATION AND NOISE REDUCTION PROGRAM - VOLUME 2, USER'S MANUALMarch 1978 - R. J. Drago, R. W. Howells, J. W. Lenski, Jr., E. G. Schaffer, and J. J. Sciarra, USARTL-TR-78-2A, Applied Technology Laboratory, U. S. Army Research and Technology Laboratories (AVRADCOM), Fort Eustis, VA

16. ON THE DESIGN AND MANUFACTURE OF INTEGRAL SPIRAL BEVEL GEARS FOR THE CH-47D HELICOPTERMarch 1979 - R. J. Drago, American Gear Manufacturers Association, Aerospace Gearing Committee Meeting, Lake Tahoe, NE

17. INCIPIENT FAILURE DETECTIONFebruary 1979 - R. J. Drago, Power Transmission Design, Pages 40-4518. AN ANALYTICAL APPROACH TO THE SOURCE REDUCTION OF NOISE AND VIBRATION IN HIGHLY LOADED MECHANICAL POWER TRANSMISSION SYSTEMSJuly 1979 - R. J. Drago, J. W. Lenski, Jr., and A. Royal, Fifth World Congress on the Theory of Machines and Mechanisms, Concordia University, Montreal, Canada


19. NOISE AND VIBRATION REDUCTION IN HELICOPTER GEARBOXESApril 1979 - R. J. Drago and G. A. Pizzigati, American Institute of Aeronautics and Astronautics / American Society of Mechanical Engineers / American Society of Civil Engineers / American Helicopter Society, 20th Joint Structural Dynamics and Materials Conference, St. Louis, MO

20. THE PROBLEM OF RESONANT RESPONSE OF HIGH SPEED, LIGHT WEIGHT HELICOPTER GEARINGApril 1979 - R. J. Drago and F. W. Brown, American Institute of Aeronautics and Astronautics / American Society of Mechanical Engineers / American Society of Civil Engineers / American Helicopter Society, 20th Joint Structural Dynamics and Materials Conference, St. Louis, MO

21. HOW TO MAKE HIGH EFFICIENCY GEARS THAT COST LESSApril 1979 - R. J. Drago, Production, Pages 90-92

22. AN ANALYTICAL APPROACH AND SELECTIVE STIFFENING TECHNIQUE FOR THE SOURCE REDUCTION OF NOISE AND VIBRATION IN HIGHLY LOADED MECHANICAL POWER TRANSMISSION SYSTEMSSeptember 1979 - R. J. Drago, J. W. Lenski, Jr., and A. C. Royal, Fifth European Rotorcraft and Powered Lift Aircraft Forum, Amsterdam, The Netherlands

23. WHY GEARS EXPLODEJuly 1979 - R. J. Drago and F. W. Brown, Power Transmission Design, Pages 77-80

24. THE ANALYTICAL AND EXPERIMENTAL EVALUATION OF RESONANT RESPONSE IN HIGH SPEED, LIGHT WEIGHT, HIGHLY LOADED GEARINGAugust 1980 - R. J. Drago and F. W. Brown, ASME Paper No. 80-C2/DET 22, Third International Power Transmission and Gearing Conference, San Francisco, CA

25. RECENT ADVANCES IN THE EVALUATION OF STRESSES IN HIGH SPEED, LIGHT WEIGHT, HIGHLY LOADED GEARINGAugust 1980 - R. J. Drago, F. W. Brown, and H. S. Faust, International Conference on Reliability, Stress Analysis, And Failure Prevention, San Francisco, CA

26. SOME PROGRESS IN THE ACCURATE EVALUATION OF TOOTH ROOT AND FILLET STRESSES IN LIGHT WEIGHT, THIN RIMMED GEARSOctober 1980 - R. J. Drago and G. A. Pizzigati, AGMA Paper No. 229.21, American Gear Manufacturers Association Fall Technical Meeting, Washington, DC

27. NEW APPROACH FOR ANALYZING TRANSMISSION NOISENovember 1980 - R. J. Drago, Machine Design, Pages 114-120

28. HOW TO DESIGN QUIET TRANSMISSIONSDecember 1980 - R. J. Drago, Machine Design, Pages 175-181


29. MINIMIZING NOISE IN TRANSMISSIONSJanuary 1981 - Raymond J. Drago, Machine Design, Pages 143-148

30. AN EXPERIMENTAL INVESTIGATION OF THE COMBINED EFFECTS OF RIM THICKNESS AND PITCH DIAMETER ON SPUR GEAR TOOTH ROOT AND FILLET STRESSESOctober 1981 - Raymond J. Drago and Ronald V. Lutthans, AGMA Paper No. P229.22, Fall Technical Meeting, Toronto, Canada

31. ON THE AUTOMATIC GENERATION OF FEM MODELS FOR COMPLEX GEARS - A WORK-IN-PROGRESS REPORTFebruary 1982 - Raymond J. Drago, American Gear Manufacturers Association Aerospace Gearing Meeting, San Diego, CA

32. FUNDAMENTALS OF GEAR DESIGNSeminar Text, Copyright 1982, Raymond J. Drago (807 Pages)

33. LE SOLLECITAZIONI DELLA RADICE E DEL RACCORDO DENTE NEGLI INGRANAGGI CILINDRICIJune 1982 - Raymond J. Drago, Oragami Di Transmissione, Pages 44-55 (Journal of the Italian Gear Manufacturers Association, In Italian)

34. CONTINUING EDUCATION - ON THE ECONOMY PLANSeptember 1982 - Raymond J. Drago and Leonard Marchinski, Mechanical Engineering, Volume 104, Number 9, Pages 67-71

35. AN IMPROVEMENT IN THE CONVENTIONAL ANALYSIS OF GEAR TOOTH BENDING FATIGUE STRENGTHOctober 1982 - Raymond J. Drago, AGMA Paper No. P229.24, American Gear Manufacturers Association Fall Technical Meeting, New Orleans, LA

36. GEAR SYSTEM DESIGN FOR MINIMUM NOISESeminar Text, Copyright 1982, Raymond J. Drago (205 Pages)

37. DEVELOPMENTS IN THE DESIGN, ANALYSIS, AND FABRICATION OF ADVANCED TECHNOLOGY TRANSMISSION ELEMENTSNovember 1982 - Raymond J. Drago and J. W. Lenski, Jr., AHS Paper No. RWP-12, American Helicopter Society Rotary Wing Propulsion System Specialists Meeting, Williamsburg, VA (17 Pages)

38. OPTIMUM LUBRICATING OIL STUDYFebruary 1983 - Raymond J. Drago, Naval Air Propulsion Test Center Contract N00140-82-C-3722, Final Technical Report (101 Pages)

39. TECHNICAL REPORT Volume I, LARGE ROTORCRAFT TRANSMISSION TECHNOLOGY DEVELOPMENT PROGRAM


February 1983 - Raymond J. Drago and B. R. Uppaluri, NASA Report CR-168116, National Aeronautics and Space Administration, Cleveland, OH (241 Pages)

40. COMPUTER PROGRAM USERS MANUAL - Volume II, LARGE ROTORCRAFT TRANSMISSION TECHNOLOGY DEVELOPMENT PROGRAMFebruary 1983 - Raymond J. Drago and B. R. Uppaluri, NASA Report CR-168117, National Aeronautics and Space Administration, Cleveland, OH (173 Pages)

41. COMPUTER PROGRAM FLOW CHARTS - Volume III, LARGE ROTORCRAFT TRANSMISSION TECHNOLOGY DEVELOPMENT PROGRAMFebruary 1983 - Raymond J. Drago and B. R. Uppaluri, and G. P. Walsh, NASA Report CR-168118, National Aeronautics and Space Administration, Cleveland, OH (307 Pages)

42. COMPUTER PROGRAM PARAMETER INDICES AND LISTINGS - Volume IV, LARGE ROTORCRAFT TRANSMISSION TECHNOLOGY DEVELOPMENT PROGRAMFebruary 1983 - Raymond J. Drago, B. R. Uppaluri, and G. P. Walsh, NASA Report CR-168119, National Aeronautics and Space Administration, Cleveland, OH (403 Pages)

43. DEVELOPMENT OF LARGE ROTORCRAFT TRANSMISSIONSMay 1983 - Raymond J. Drago, N. E. Samanich, and J. C. Mack, American Helicopter Society, Thirty Ninth Annual Forum, St. Louis, MO (10 Pages)

44. COMBINED EFFECTS OF RIM THICKNESS AND PITCH DIAMETER ON SPUR GEAR TOOTH STRESSESJuly 1983 - Raymond J. Drago and R. V. Lutthans, Journal of the American Helicopter Society, Washington, DC (7 Pages)

45. RESULTS OF AN EXPERIMENTAL PROGRAM UTILIZED TO VERIFY A NEW GEAR TOOTH STRENGTH ANALYSISOctober 1983 - Raymond J. Drago, American Gear Manufacturers' Association, Fall Technical Meeting, Montreal, Canada (57 Pages)

46. BEVEL GEAR ASSEMBLY AND PATTERNINGOctober 1983 - Raymond J. Drago, Seminar Text

47. ADVANCED TECHNOLOGY TRANSMISSION ELEMENTSOctober 1983 - Raymond J. Drago and Joseph W. Lenski, Jr. Journal of the American Helicopter Society, Washington, DC, Volume 28, Number 4, Pages 44 - 53 (10 Pages)

48. EVALUATION OF BEVEL GEAR LOAD CAPACITYMay 1984 - Raymond J. Drago, Bevel Gear Clinic, Society of Manufacturing Engineers, Rochester, NY (44 Pages)

49. SPECIAL POWER TRAIN REQUIREMENTS FOR THE NEXT GENERATION OF ROTARY-WING AIRCRAFT


October 1984 - Raymond J. Drago and Joseph W. Lenski, Jr. Advisory Group For Aerospace Research and Development, North Atlantic Treaty Organization (NATO), Neuilly Sur Seine, France: Presented at the 64th Symposium of the Propulsion and Energetics Panel on Gears and Power Systems for Helicopters and Turboprops, Lisbon, Portugal (12 Pages)

50. ANALYTICAL AND EXPERIMENTAL TOOTH STRENGTH STUDY OF SPUR PLANET GEARS WITH INTEGRAL BEARINGSOctober 1984 - Raymond J. Drago and Bapa R. Uppaluri, American Gear Manufacturer's Association, Fall Technical Meeting, Washington, DC (8 Pages)

51. GEAR TOOTH SURFACE DURABILITY TESTING WITH FULL SIZE SPECIMENSOctober 1984 - Raymond J. Drago and H. James Nonemaker, American Helicopter Society, National Specialists Meeting, Williamsburg, VA (20 Pages)

52. UN CONTRIBUTO ALL'ANALISI CONVENZIONALE DELLA RESISTENZA A FATICIA A FLESSIONE DEGLI INGRANAGGI DENTATINovember 1984 - Raymond J. Drago, Oragami Di Transmissione, Pages 60-73 (Journal of the Italian Gear Manufacturers Association, In Italian)

53. A STUDY OF THE POTENTIAL BENEFITS OF THE DEVELOPMENT OF A DEDICATED HELICOPTER TRANSMISSION LUBRICANTApril 1985 - Raymond J. Drago, Pasquale Mangione, Raymond D. Wendrzycki, Advisory Group For Research and Development, North Atlantic Treaty Organization, Aircraft Gear and Bearing Tribological Systems Specialists Meeting, San Antonio, TX (11 Pages)

54. DESIGN GUIDELINES FOR HIGH-CAPACITY BEVEL GEAR SYSTEMSSeptember 1985 - Raymond J. Drago, SAE Technical Paper Series, Paper Number 851571, 1985 International Off-Highway & Powerplant Congress & Exposition, Society of Automotive Engineers, MECCA, Milwaukee, WI (17 Pages)

55. A STUDY OF THE POTENTIAL BENEFITS OF THE DEVELOPMENT OF A DEDICATED HELICOPTER TRANSMISSION LUBRICANTOctober 1985 - Raymond J. Drago, Pasquale Mangione, Raymond D. Wendrzycki, SAE Technical Paper Series, Paper Number 851832, Aerospace Technology Conference & Exposition, Society of Automotive Engineers, Long Beach, CA (12 Pages)

56. CHAPTER 35, HELICAL GEARS, STANDARD HANDBOOK OF MACHINE DESIGN1986 - Raymond J. Drago, Volume Edited by J. E. Shigley and C. R. Mischke, McGraw-Hill Publishing Company, New York (56 Pages)

57. ON THE STRENGTH OF A PLANET GEAR WITH AN INTEGRAL BEARING (A Revaluation)October 1986 - Raymond J. Drago & Ravi Margasahayam, AGMA Technical Paper 86 FTM 9, Fall Technical Meeting, Hyatt Regency, Chicago, Il (13 Pages)

58. TOOTH STRENGTH STUDY OF SPUR PLANET GEARS


September/October 1986 - Raymond J. Drago & Bapa Uppaluri, GEAR TECHNOLOGY - The Journal of Gear Manufacturing, Pages 27-41

59. LARGE ROTORCRAFT DEVELOPMENT PROGRAMNovember 1986 - Raymond J. Drago, American Helicopter Society Rotary Wing Propulsion Systems Specialists Meeting, Williamsburg, VA

60. STRESS ANALYSIS OF PLANET GEARS WITH INTEGRAL BEARINGS; 3D FINITE-ELEMENT MODEL DEVELOPMENT AND TEST VALIDATION March 1987 - Raymond J. Drago & Ravi Margasahayam, 1987 MSC NASTRAN World Users' Conference, Los Angeles, CA (14 Pages)

61. FINITE-ELEMENT STRESS ANALYSIS OF HELICOPTER PLANETARY GEARS May 1987 - Raymond J. Drago & Ravi Margasahayam, 43rd Annual Forum, American Helicopter Society, St. Louis MO. (15 Pages)

62. FINITE-ELEMENT STRESS ANALYSIS OF HELICOPTER PLANETARY GEARSMay 1987 - Raymond J. Drago, Advanced Gear Design Invited Lecture, The University of Pisa, Pisa, Italy

63. DEVELOPMENT OF A LARGE SPIRAL BEVEL GEAR ROTORCRAFT TRANSMISSIONJune 1987 - Raymond J. Drago & John C. Mack, AIAA/SAE/ASME/ASEE 23rd Joint Propulsion Conference, San Diego, CA, (6 Pages)

64. CADAM-NASTRAN-PATRAN INTEGRATION IN THE DESIGN OF HELICOPTER GEARSMarch 1988 - Raymond J. Drago, Ravi N. Margasahayam, and H. C. Lin, Spring National Design Engineering Conference, Chicago, IL, (14 Pages)

65. ANALYSIS OF THE RESONANT RESPONSE OF HELICOPTER GEARS WITH THE 3D FINITE-ELEMENT METHODMarch 1988 - Raymond J. Drago & Ravi Margasahayam, 1988 MSC/NASTRAN World User's Conference, Los Angeles, CA (15 Pages)

66. COMPARATIVE LOAD CAPACITY EVALUATION OF CBN-FINISHED GEARSOctober 1988 - Raymond J. Drago, AGMA Fall Technical Meeting, New Orleans, LA, American Gear Manufacturers Association, Alexandria, VA (10 Pages)

67. FUNDAMENTALS OF GEAR DESIGN 1988 - Raymond J. Drago, Butterworth Publishers, Stoneham, MA, (560 Pages)

68. A NON-LINEAR FINITE ELEMENT APPROACH TO THE GEAR TOOTH LOAD SHARING PROBLEMMarch 1988 - Raymond J. Drago & Ravi N. Margasahayam, 1989 MSC/NASTRAN World User's Conference, Los Angeles, CA (25 Pages)


69. GEAR TOOTH LOAD SHARING USING NON-LINEAR FINITE ELEMENT METHODSNovember 1989 - Raymond J. Drago & Ravi Margasahayam, AGMA Fall Technical Meeting, Pittsburgh, PA, American Gear Manufacturers Association, Alexandria, VA (10 Pages)

70. CHAPTER 4, HELICAL GEARS, GEARING, A Mechanical Designer's Workbook1990 - Raymond J. Drago, Volume Edited by J. E. Shigley and C. R. Mischke, McGraw-Hill Publishing Company, New York (72 Pages)

71. GEAR NOISE - THE MANUFACTURING CONNECTIONApril 1990 - Raymond J. Drago, American Gear Manufacturers Association Gear Manufacturing Clinic, Radisson Hotel, Columbus, OH (22 Pages)

72. CHAPTERS 8 & 15, GEAR DESIGN - MANUFACTURING AND INSPECTION MANUAL1990 - Raymond J. Drago, Volume Edited The SAE Gear & Spline Committee, SAE Publication AE-15, Society of Automotive Engineers, Warrendale, PA (25 of 643 Pages)

73. THE ADVANCED ROTORCRAFT TRANSMISSION PROGRAM, A STATUS REPORTOctober 1990 - Raymond J. Drago, AGMA Fall Technical Meeting, Toronto, Ontario, Canada, American Gear Manufacturers Association, Alexandria, VA (15 Pages)

74. AIRCRAFT QUALITY HIGH TEMPERATURE VACUUM CARBURIZINGNovember 1990 - R. J. Cunningham and R. J. Drago, U. S. Army Materials Technology Laboratory Report MTL TR-90-42, U. S. Army Laboratory Command, Watertown, MA

75. CHAPTER 2, DUDLEY'S GEAR HANDBOOK, Second Edition1991 - Raymond J. Drago, Volume Edited by Dennis Townsend, McGraw-Hill, Inc., New York, NY, (49 Pages)

76. DESIGN GUIDELINES FOR HIGH-CAPACITY BEVEL GEAR SYSTEMSJanuary/February 1992 - Raymond J. Drago, GEAR TECHNOLOGY - The Journal of Gear Manufacturing, Pages 16-29

77. TRANSMISSIONI AVANZATE PER ELICOTTERIPart I: January 1992 & Part II: February 1992 - Raymond J. Drago & Joseph W. Lenski, Jr., ORGAMI DI TRANSMISSIONE Pages 28-35 (Journal of the Italian Gear Manufacturers Association, In Italian)

78. ANALYTICAL EVALUATION OF RESONANT RESPONSE OF SPIRAL BEVEL GEARS IN THE RAH-66 HELICOPTER FANTAIL TRANSMISSIONJuly 1992, AIAA/SAE/ASME/ASEE 28th Joint Propulsion Conference and Exhibit, Nashville, TN, July 6-8, 1992, Paper No. AIAA 92-3495 (9 Pages)

79. THE DESIGN, DEVELOPMENT, AND MANUFACTURE OF ADVANCED TECHNOLOGY GEARING FOR HOT STRIP ROLLING MILL APPLICATIONS


October 1992 - Raymond J. Drago & Laurence E. Scott, AGMA Fall Technical Meeting, Baltimore, MD, American Gear Manufacturers Association, Alexandria, VA (23 Pages)

80. POWERFUL GEARS BREATHE NEW LIFE INTO ROLLING MILLSMarch 1993 - Raymond J. Drago & Laurence E. Scott, Jr., Power Transmission Design, Pages 27 - 31

81. UPGRADING HOT STRIP MILL PERFORMANCE, PRODUCTION, & RELIABILITY THROUGH THE USE OF ADVANCED TECHNOLOGY GEARSMay 1993 - Raymond J. Drago & Laurence E. Scott, Association of Iron and Steel Engineers, 1993 AISE Spring Convention, Opryland Hotel, Nashville, TN, Paper –17, (25 Pages)

82. THE RELATIVE NOISE LEVELS OF PARALLEL AXIS GEAR SETS WITH VARIOUS CONTACT RATIOS AND GEAR TOOTH FORMSOctober 1993 - Raymond J. Drago, Joseph W. Lenski, Robert H. Spencer. Mark J. Valco, & Fred B. Oswald, AGMA Fall Technical Meeting, Detroit, MI, American Gear Manufacturers Association, Alexandria, VA (17 Pages)

83. GEAR SOUND LEVELS WITH VARIOUS TOOTH CONTACT RATIONS AND FORMSOctober 1993 - Joseph W. Lenski, Raymond J. Drago, Robert H. Spencer. Mark J. Valco, & Fred B. Oswald, AHS Rotary Wing Propulsion Specialists' Meeting, Williamsburg, VA, American Helicopter Society, Alexandria, VA (15 Pages)

84. OVERVIEW OF A FIVE-YEAR RESEARCH, DEVELOPMENT, AND TEST PROGRAM(Conference Keynote Address)

September 1994 - Raymond J. Drago & Joseph W. Lenski, Jr., International Gearing Conference, University of Newcastle, Newcastle Upon Tyne, England (18 Pages)

85. INFLUENCE OF GEAR DESIGN PARAMETERS ON GEARBOX RADIATED NOISESeptember 1994 - F. W. Oswald, D. P. Townsend, M. J. Valco, Raymond J. Drago, Joseph W. Lenski, Jr., & R. H. Spencer, International Gearing Conference, University of Newcastle, Newcastle Upon Tyne, England (18 Pages)

86. TRASMISSIONI AVANZATE PER LAMINATOI A CALDO: IL PROCESSO DI LAMINAZIONEJuly 1995 - Raymond J. Drago & Lawrence E. Scott ORGAMI DI TRANSMISSIONE Pages 48-52 (Journal of the Italian Gear Manufacturers Association, In Italian)

87. TRASMISSIONI AVANZATE PER LAMINATOI A CALDO: IL PROGETTO DEGLI INGRANAGGIAugust 1995 - Raymond J. Drago & Lawrence E. Scott ORGAMI DI TRANSMISSIONE Pages 36-42 (Journal of the Italian Gear Manufacturers Association, In Italian)

88. TRASMISSIONI AVANZATE PER LAMINATOI A CALDO: LA REALIZZAZIONE DEGLI INGRANAGGI


September 1995 - Raymond J. Drago & Lawrence E. Scott ORGAMI DI TRANSMISSIONE Pages 86-95 (Journal of the Italian Gear Manufacturers Association, In Italian)

89. GEAR RESONANCE EXPERIENCE WITH F-22 AMADOctober 1996 - Raymond J. Drago, Frederick W. Brown, Ashok D. Sane, Dennis Stremick, 7th International power Transmission and Gearing Conference, ASME International, San Diego, CA, Paper Number 156PTG96, 7 pages

90. THE F-22 AMAD GEAR DRIVE - OPTIMIZATION OF RESONANCE CHARACTERISTICS BY DETUNING, COULOMB DAMPING, AND DAMPED FORCED RESPONSE ANALYSESOctober 1996 - Raymond J. Drago, Frederick W. Brown, Ashok D. Sane, Dennis Stremick, American Gear Manufacturers Association 1996 Fall Technical Meeting, Cincinnati, OH, 16 Pages

91. GEAR MANUFACTURING - METHODS, MACHINES, & TOOLSNovember 1996 - Raymond J. Drago, Society of Manufacturing Engineers, Section 15 Technical Meeting, Philadelphia, PA, 50 pages

92. UPGRADING MILL GEARING - HOW, WHY, RESULTSNovember 1996 - Raymond J. Drago, Symposium on Steel Mill Gearing, Educational Systems Workshops, Pittsburgh, PA, 23 Pages93. ULTRASAFE GEAR SYSTEMS FOR CRITICAL APPLICATIONS - INITIAL DEVELOPMENTNovember 1997 - Raymond J. Drago, Frederick W. Brown, Ashok D. Sane, American Gear Manufacturers Association 1997 Fall Technical Meeting, San Diego, CA, 22 Pages

94. ADVANCED TECHNOLOGY GEAR DRIVES FOR FLUID MIXING APPLICATIONSMay 1998 - Raymond J. Drago, William F. Hutchings, Alan J. Olderstein, Canadian Society of Mechanical Engineers, CSME Forum 1998, Ryerson Polytechnic University, Toronto, Ontario, Canada, 8 Pages

95. THREE DIMENSIONAL CRACK PROPAGATION STUDIESMarch 1999 - David G. Lewicki, Raymond J. Drago, Ashok D. Sane, & Paul A. Wawrzynek, 4th World Congress on Gearing and Power Transmission, Paris, France, 11 Pages

96. INGRANAGGI “ULTRASAFE” PER APPLICAZIONI CRITICHE - 1a PARTE: IMPOSTAZIONE DEL PROBLEMAMarch 1999 - Raymond J. Drago, Ashok Sane & Frederick W. Brown ORGAMI DI TRANSMISSIONE Pages 58-66 (Journal of the Italian Gear Manufacturers Association, In Italian)

97. DEVELOPMENT OF GEAR TECHNOLOGY AND THEORY OF GEARING (By Faydor L. Litvin) - A TECHNICAL BOOK REVIEW


July/August 1999 - Raymond J. Drago, , GEAR TECHNOLOGY - The Journal of Gear Manufacturing, Pages 14-15

98. INGRANAGGI “ULTRASAFE” PER APPLICAZIONI CRITICHE - 3a PARTE: OTTIMIZZAZIONEJuly 1999 - Raymond J. Drago, Ashok Sane & Frederick W. Brown ORGAMI DI TRANSMISSIONE Pages 76-80 (Journal of the Italian Gear Manufacturers Association, In Italian)

99. THE EFFECT OF MATERIAL DEFECTS ON GEAR PERFORMANCE - A CASE STUDY -October 1999 - Raymond J. Drago & Alejandro Font Filax, American Gear Manufacturers Association 1999 Fall Technical Meeting, Lakewood, CO, 7 Pages

100. THE EFFECT OF MATERIAL DEFECTS ON GEAR PERFORMANCE - A CASE STUDYMarch/April 2000 - Raymond J. Drago & Alejandro Font Filax, Gear Technology - The Journal of Gear Manufacturing, pp 18 - 23

101. ULTRASAFE GEAR SYSTEMS - SINGLE TOOTH BENDING FATIGUE TEST RESULTSOctober 2000 - Raymond J. Drago, Arron Issacson, and Nagesh Sonti, American Gear Manufacturers Association 2000 Fall Technical Meeting, Cincinnati, OH, 9 Pages

102. I DIFETTI DEL MATERIALE INFLUENZANO LE PRESTAZIONISeptember 2000 - Raymond J. Drago, Alejandro F. Filax ORGAMI DI TRANSMISSIONE Pages 70-76 (Journal of the Italian Gear Manufacturers Association, In Italian)103. ADVANCED TECHNOLOGY GEARING (ATG) IN STEEL MILL APPLICATIONS - UNDERSTANDING MILL GEAR FAILURES - EVALUATION, IDENTIFICATION, MODE, PROGRESSION MECHANISM, PREVENTION, CORRECTION, REDESIGNFebruary 2001 - Raymond J. Drago, Association of Iron & Steel Engineers, Technical Meeting, Merrillville, Indiana

104. UNDERSTANDING LARGE GEAR FAILURES - EVALUATION, IDENTIFICATION, MODE, PROGRESSION MECHANISM, PREVENTION, CORRECTION, REDESIGNNovember 2001 - Raymond J. Drago, ASM Materials Solutions Conference, Indianapolis, IN

105. MATERIAL AND HEAT TREATMENT RELATED FAILURES OF LARGE MILL GEARS - SYMPTOMS, CAUSES AND REMEDIESSeptember 2002 - Raymond J. Drago, AISE 2002 Annual Convention and Expo, September 29 - October 2, 2002, Gaylord Opryland Hotel, Nashville, TN 37214, 14 pages

106. CRACK LENGTH AND DEPTH DETERMINATION IN AN INTEGRATED CARBURIZED GEAR/BEARING


October 2002 – Raymond J. Drago and James S. Kachelries, AGMA 2002 Fall Technical Meeting, Cincinnati, OH, 8 Pages

107. UNDERSTANDING FAILURES OF LARGE MILL GEARS – CAUSES, PREVENTION, CURESSeptember 2003 – Raymond J. Drago, 2002 Mill Drive Symposium, The Manufacturer’s Conference Center, Erie, PA, 50 Pages

108. CRACK LENGTH AND DEPTH DETERMINATION IN AN INTEGRATED CARBURIZED GEAR/BEARINGSpring 2003 – Raymond J. Drago and James S. Kachelries, AGMA News Digest, Alexandria, VA, 8 Pages

109. UNDERSTANDING GEAR FAILURES – MATERIALS AND HEAT TREATMENT ISSUESOctober 2003 – Raymond J. Drago, AGMA Gear-Expo, Columbus, OH, 50 Pages

110. FAILURE ANALYSIS – THE APPLICATION OF FORENSIC GEAR ENGINEERINGJanuary 2004, Raymond J. Drago, AGMA Regional Meeting, Las Vegas, NV, 143 Pages

111. IDENTIFICATION OF MILL GEAR FAILURES – EVALUATION, IDENTIFICATION, MODE, PROGRESSION MECHANISM, PREVENTION, CORRECTION, REDESIGNApril 2004 – Raymond J. Drago, Association for Iron and Steel Technology, Cleveland Regional Meeting, Independence, OH, 37 Pages

113. THE ROLE OF A GEAR TECHNOLOGY EXPERT WITNESS IN PRODUCT LIABILITY AND/OR PERSONAL INJURY LITIGATIONNovember 2004 – Raymond J. Drago.; Special Presentation to the American Gear Manufacturers Association Fall Technical Meeting, Milwaukee, WI

114. ADVANCED TECHNOLOGY GEARS IN STEEL MILL APPLICATIONS ENHANCED THROUGH THE APPLICATION LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED GEAR BLANKSSeptember 2005 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; Mill Gearing Technology Symposium 5, Erie; PA

115. THE APPLICATION OF VERY LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED ADVANCED TECHNOLOGY GEARS IN STEEL MILL GEAR DRIVESOctober 2005 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; American Gear Manufacturers Association Fall Technical Meeting, Detroit, MI, 18 Pages

116. THE APPLICATION OF VERY LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED ADVANCED TECHNOLOGY GEARS IN STEEL MILL GEAR DRIVES


May 2006 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; Association of Iron & Steel Technology AISTech Technical Meeting, Cleveland, OH, 18 Pages

117. A CRANE GEAR FAILURE ANALYSIS – CASE STUDY, OBSERVATIONS, LESSONS LEARNED, RECOMMENDATIONSOctober 2006 – By Raymond J. Drago, American Gear Manufacturers Association Fall Technical Meeting, Orlando, FL, 10 Pages

118. THE EFFECT OF START-UP LOAD CONDITIONS ON GEARBOX PERFORMANCE & LIFE – FAILURE ANALYSIS AND CASE STUDYOctober 2007 - By Raymond J. Drago, American Gear Manufacturers Association Fall Technical Meeting, Detroit, MI, 11 Pages

119. HYDROGEN AND INTERNAL RESIDUAL STRESS GEAR FAILURES – SOME FAILURE ANALYSES AND CASE STUDIESOctober 2008 – AGMA Technical Paper 08FTM13, By Raymond J. Drago and Roy Cunningham, American Gear Manufacturers Association Fall Technical Meeting, San Antonio, TX, 11 Pages

120. THE ANATOMY OF A MICROPITTING INDUCED TOOTH FRACTURE FAILURE ▬ CAUSATION, INITIATION, PROGRESSION & PREVENTION September 2009 - AGMA Technical Paper 09FTM12, By Raymond J. Drago, P. E., Chief Engineer; Roy J. Cunningham, Metallurgical Engineer; Steve Cymbala, Senior Drives Engineer; Drive Systems Technology, Inc, American Gear Manufacturers Association Fall Technical Meeting, Indianapolis, IN, 12 Pages

121. GEAR SYSTEM TRIBOLOGY ― THE REAL WORLD VIEWJune 2010 – KEYNOTE ADDRESS Southeastern Wisconsin Gear Summit, University of Wisconsin – Milwaukee (UWM), Milwaukee, WI, 56 Pages

122. THE ANATOMY OF A MICROPITTING INDUCED TOOTH FRACTURE FAILURE ▬ CAUSATION, INITIATION, PROGRESSION & PREVENTION June 2010 – Gear Technology – The Journal of Gear Manufacturing, By Raymond J. Drago, P. E., Chief Engineer; Roy J. Cunningham, Metallurgical Engineer; Steve Cymbala, Senior Drives Engineer; Drive Systems Technology, Inc., Gear Technology Journal, Pages 63-69 (with permission)

123. THE ANATOMY OF A LUBRICATION EROSION FAILURE - CAUSATION, INITIATION, PROGRESSION AND PREVENTION September 2013 – AGMA Fall Technical Meeting Paper 13FTM16, By Raymond J. Drago and Roy J. Cunningham, Drive Systems Technology, Inc., and William Flynn, Chalmers & Kubeck.

124. THE ANATOMY OF A LUBRICATION EROSION FAILURE_ CAUSATION, INITIATION, PROGRESSION, AND PREVENTION - PART I, Gear Solutions Magazine March 2014, 11 Pages


125. THE ANATOMY OF A LUBRICATION EROSION FAILURE_ CAUSATION, INITIATION, PROGRESSION, AND PREVENTION - PART II, Gear Solutions Magazine April 2014, 9 Pages


1SEMINAR LIST



Glen Mills, PA 19342-1519V: 610-358-0785; F:610-358-2776; Web: www.gear-doc.com; E-Mail: [email protected]

A. Fundamentals of Gear Design (24 Hours)1. University of Wisconsin, Milwaukee, WI, April 1982 2. University of Wisconsin, Milwaukee, WI, May 1983 3. Boeing Commercial Airplane Company, Seattle, WA, August 1983 4. United States Navy - Naval Air Propulsion Center, Trenton, NJ, September 19835. Boeing Vertol Company, Philadelphia, PA, October 19836. University of Wisconsin, Milwaukee, WI, March 1984 7. United States Navy - Naval Ship Engineering Systems, Philadelphia Navy Yard,

PA April 19858. University of Wisconsin, Milwaukee, WI, June 1985 9. General Electric Company, Steam Turbine - Generator Division, Lynn

Operations, Lynn MA December 198510. Boeing Vertol Company, Philadelphia, PA January 198611. Sundstrand Corporation, Pneumatic Systems Division, Rockford, IL

February 198612. University of Wisconsin, Milwaukee, WI, June 1986 13. American Society of Mechanical Engineers, Chicago, IL, September 1986 14. General Electric Company, Aircraft Engine Business Group, Cincinnati, OH

December 198615. Saturn Corporation, Troy, MI January 198716. University of Pisa, Pisa, Italy May 198717. University of Wisconsin, Milwaukee, WI, July 1987 18. M & M Precision Systems, West Carrollton, OH, October 1987 19. United States Army - AVSCOM, St Louis, MO, November 1987 20. Boeing Commercial Airplane Company, Renton, WA, March 198821. University of Wisconsin, Milwaukee, WI, November 198822. Mineral Processing Systems, Inc. May 198923. University of Wisconsin, Milwaukee, WI, December 198924. Sundstrand Corporation, ATG Division, Rockford, IL, February 199025. University of Tulsa, Tulsa, OK, March 199026. United States Navy - Norfolk Naval Supply Systems Command, Price Fighter

Detachment, Norfolk Navy Base, Norfolk, VA June 199027. United States Navy - Pensacola Naval Air Station, Pensacola, FL September 199028. Horsburgh & Scott, Cleveland, OH September 199029. General Motors - Hydramatic Division, Toledo, OH November 199030. University of Wisconsin, Milwaukee, WI, November 199031. General Motors - Hydramatic Division, Toledo, OH November 1990




32. General Motors - Hydramatic Division, Toledo, OH December 199033 General Motors - Hydramatic Division, Toledo, OH January 199134. The Boeing Company, Seattle, WA, February 1991 35. United States Navy - Naval Air Propulsion Center, Trenton, NJ, March 199136 University of Wisconsin, Milwaukee, WI, December 199137. Cuyahoga College, (Sponsor: Horsburgh & Scott), Cleveland, OH March 199138. University of Wisconsin, Milwaukee, WI, December 199239. United States Steel Corp, Mon Valley Works, Dravosburg, PA, June 199240. United States Steel Corp, Gary Works, Gary, IN, July 199241. University of Wisconsin, Milwaukee, WI, December 199242. Lexmark, An IBM Alliance Company, Lexington, KY January 199343. University of Wisconsin, Milwaukee, WI, December 199344. Oregon Institute of Technology, Clackmas, OR (Sponsored by Warn Industries),

May 199445. George Stinson Management Center, National Steel Corporation, Great Lakes

Division, Ecorse, MI, August 199446. George Stinson Management Center, National Steel Corporation, Great Lakes

Division, Ecorse, MI, September 199447. Boeing Defense & Space Group, Helicopters Division, Philadelphia, PA, October

199448. University of Wisconsin, Milwaukee, WI, November 199449. National Steel Corporation, Granite City Division, Granite City, IL January 199550. National Steel Corporation, Granite City Division, Granite City, IL February 199551. Boeing Commercial Airplane Company, Seattle, WA March 199552. University of Wisconsin, Milwaukee, WI, November 199553. University of Wisconsin, Milwaukee, WI, December 199654. Boeing Defense & Space Group, Military Airplane Division, January 199755. Falk Corporation, Milwaukee, WI, February 199756. Cuyahoga College, (Sponsor: Horsburgh & Scott), Cleveland, OH June, 199757. Marine Corps Air Station, Cherry Point, NC, July 199753. University of Wisconsin, Milwaukee, WI, December 199754. University of Wisconsin, Presented at Irvine, CA, WI, February 199855. Fairfield Manufacturing Company, Lafayette, IN, March 199856. Castrol Industrial North America (Lubricants), Downers Grove, IL September

199857. University of Wisconsin, Milwaukee, WI, December 199858. Halm Industries, Glen Head, NY, August 199959. Hamilton Sundstrand, Rockford, IL, November 199960. Lantec Industries, Langley, British Columbia, Canada, January 2000

In 1999, the Fundamentals of Gear Design Seminar was greatly expanded in content and the presentation was changed to two - three day sessions.

61. University of Wisconsin, Milwaukee, WI, PART I, December 1999 (20 Hours)62. University of Wisconsin, Milwaukee, WI, PART II, April 2000 (20 Hours)63. The Boeing Company, Philadelphia, PA PART I (modified format), June 200064. The Boeing Company, Philadelphia, PA PART II (modified format), June 200065. Caterpillar Corporation, East Peoria, IL, PART I (modified format), September 2000


66. Caterpillar Corporation, East Peoria, IL, PART II (modified format), September 2000

67. The National Renewable Energy Laboratory, Boulder, CO, PART I (modified format), November 2000

68. The National Renewable Energy Laboratory, Boulder, CO, PART II (modified format), November 2000

69. University of Wisconsin, Clear Water Beach, FL, PART II, February 200170. Westar Corporation for Redstone Arsenal, Huntsville, AL PART I, April 200171. Westar Corporation for Redstone Arsenal, Huntsville, AL PART II, April 200172. University of Wisconsin, Milwaukee, WI, PART I, December 2001 (20 Hours)

In 2002, the Fundamentals of Gear Design Seminar Parts 1 and 2 were separated into two complementary three day sessions, Fundamentals of Gear Design and Advanced Gear Design & Theory.

73. University of Wisconsin, Milwaukee, WI, March 200274. University of Wisconsin, Milwaukee, WI, June 200275. University of Wisconsin, Milwaukee, WI, March 200376. University of Wisconsin, Milwaukee, WI, March 200477. University of Wisconsin, Milwaukee, WI, March 200578. University of Wisconsin, Milwaukee, WI, May 200679. Parker Aerospace Control Systems Division, Irvine, CA July 200680. University of Wisconsin, Milwaukee, WI, August 200781. University of Wisconsin, Milwaukee, WI, April 200882. NASA Jet Propulsion Laboratory, Pasadena, CA June 200983. iRobot Corp, Burlington, MA, M June 201084. University of Wisconsin, Milwaukee, WI, October 201085. University of Wisconsin, Milwaukee, WI, August 201186. University of Wisconsin, Milwaukee, WI, April 201287. PAX River Naval Air Station, Patuxent River, MD April 201288. University of Wisconsin, Milwaukee, WI, April 201389. University of Wisconsin, Milwaukee, WI, March 201490. University of Wisconsin, Milwaukee, WI, March 2015

B. Advanced Gear Design & Theory (20 Hours)1. University of Wisconsin, Milwaukee, WI, March 20022. University of Wisconsin, Milwaukee, WI, October 20023. University of Wisconsin, Milwaukee, WI, June 20034. University of Wisconsin, Milwaukee, WI, June 20045. University of Wisconsin, Milwaukee, WI, November 20056. Parker Aerospace Control Systems Division, Irvine, CA August 20067. University of Wisconsin, Milwaukee, WI, November 20068. University of Wisconsin, Milwaukee, WI, September 20079. University of Wisconsin, Milwaukee, WI, June 200810. University of Wisconsin, Milwaukee, WI, August 201011. University of Wisconsin, Milwaukee, WI, May 201012. University of Wisconsin, Milwaukee, WI, May 201113. University of Wisconsin, Milwaukee, WI, October 201114. University of Wisconsin, Milwaukee, WI, July 2013


15. University of Wisconsin, Milwaukee, WI, June 2014

C. PC Applications in Parallel Axis Gear Design (20 Hours)1. University of Wisconsin, Madison, WI October 1985 2. University of Wisconsin, Madison, WI October 1986 3. Northland, A Scott Fetzer Company, Watertown, NY January 1987 4. University of Wisconsin, Madison, WI October 19875. Boeing Commercial Airplane Company, Seattle, WA April 19896. University of Wisconsin, Milwaukee, WI, May 19897. Mineral Processing Systems, Inc. August 19898. University of Wisconsin, Milwaukee, WI, May 19909. University of Wisconsin, Milwaukee, WI, May 199110. University of Wisconsin, Milwaukee, WI, May 199211. New Venture Gear Div, New Process Gear Company, Syracuse, NY, June 199312. University of Wisconsin, Milwaukee, WI, June 199313. University of Wisconsin, Milwaukee, WI, May 199414. University of Wisconsin, Milwaukee, WI, May 199515. University of Wisconsin, Milwaukee, WI, May 199616. University of Wisconsin, Milwaukee, WI, May 199717. University of Wisconsin, Milwaukee, WI, May 199818. University of Wisconsin, Milwaukee, WI, May 1999

In 1999, the PC Applications in Parallel Axis Gear Design Seminar was expanded in content & completely new PowerGear Windows™ Based Software was introduced.

19. Hamilton Sundstrand, Rockford, IL, November 1999 (modified, shortened format)20. University of Wisconsin, Milwaukee, WI, May 199921. University of Wisconsin, Milwaukee, WI, May 200022. University of Wisconsin, Milwaukee, WI, May 200123. Rexnord Corporation, Milwaukee, WI April 200324. University of Wisconsin, Milwaukee, WI, September 200425. University of Wisconsin, Milwaukee, WI, February 200626. University of Wisconsin, Milwaukee, WI, July 200727. University of Wisconsin, Milwaukee, WI, April 200728. University of Wisconsin, Milwaukee, WI, December 200829. University of Wisconsin, Milwaukee, WI, September 201030. University of Wisconsin, Milwaukee, WI, August 201331. University of Wisconsin, Milwaukee, WI, July 2014

D. WHERE DO I START? THE PRELIMINARY GEAR DESIGN THOUGHT PROCESS (8 Hours)

1. Society of Manufacturing Engineers (3 Hrs), Detroit, MI, February 19962. University of Delaware (Junior Class Machine Design, 3 Hrs), Newark, DE, April

1996 3. Howard University (Senior Class Design Project, 3 Hrs), Washington, DC,

November 19964. Society of Manufacturing Engineers (8 Hours), Chicago, IL, February 1997


5. Society of Manufacturing Engineers (3 Hrs), Nashville, TN, January 19986. Fairfield Manufacturing Company, Lafayette, IN, March 19987. Universal Technical Systems “Gear School” (4 hours), Rockford, IL September

19988. Society of Manufacturing Engineers (8 Hours), Cincinnati, OH, November 19989. Universal Technical Systems “Gear School” (4 hours), Rockford, IL May 199910. Society of Manufacturing Engineers (8 Hours), Detroit, MI June 199911. Society of Manufacturing Engineers (8 Hours), Nashville, TN May 200012. Society of Manufacturing Engineers (8 Hours), Detroit, MI October 200113. American Gear Manufacturers Association, Indianapolis, IN September 2013

E. GEAR SYSTEM DESIGN FOR MINIMUM NOISE (16 Hours)1. University of Wisconsin, Milwaukee, WI, October 19822. Ford Motor Company, Transmission and Chassis Div., Livonia, MI, May 1983 3. University of Wisconsin, Milwaukee, WI, October 19834. University of Wisconsin, Milwaukee, WI, November 19845. Boeing Commercial Airplane Company, Seattle, WA, May 1985 6. General Motors Corporation, Technical Center, Warren, MI February 1986 7. University of Wisconsin, Milwaukee, WI November 19868. University of Pisa, Pisa, Italy May 19879. General Motors Corporation, Advanced Development Center, Troy, MI

November 198710. Funk Division, Cooper Industries, Coffeyville, KS, September 198811. American Gear Manufacturers Association, Alexandria, VA, June 1990

F. PLASTIC GEARS: DESIGN AND MANUFACTURING (8 Hours)1. University of Wisconsin, Milwaukee, WI March 2000

G. SENIOR DESIGN & SYNTHESIS (6 Hours)(Visiting Lecturer - Gear Design and Analysis)1. University of Delaware, Newark, DE Spring 19862. University of Delaware, Newark, DE Spring 19873. University of Delaware, Newark, DE Fall 19884. University of Delaware, Newark, DE Fall 19895. University of Delaware, Newark, DE Fall 19906. University of Delaware, Newark, DE Fall 19947. University of Delaware, Newark, DE Fall 1995

H. JUNIOR DESIGN (1 Hour)(Visiting Lecturer - Gear Design and Analysis)1. University of Delaware, Newark, DE Spring 19962. University of Delaware, Newark, DE Spring 19973. University of Delaware, Newark, DE Spring 19984. University of Delaware, Newark, DE Fall 2001

I. BEVEL GEAR SYSTEMS (16 Hours)


1. University of Wisconsin, Milwaukee, WI, September 19932. University of Wisconsin, Milwaukee, WI, September 19943. University of Wisconsin, Milwaukee, WI, September 19954. University of Wisconsin, Milwaukee, WI, October 19965. University of Wisconsin, Milwaukee, WI, November 1997

J. GEAR FAILURES - MODES, CAUSES, CURES (12 Hours)1. Rotek, Inc., Aurora, OH, July 1983 2. Los Angeles County Sanitary District, Los Angeles, CA, March 19873. P & H Mine Pro Services, Mesa, AZ, June 20004. AGMA Regional Meeting, Gear Expo, Columbus, OH October 2003 (Modified

format to fit special audience requirements)5. AGMA Regional Meeting, Las Vegas, NV, January 2004 (Modified to fit audience

requirements)

K. DRIVE SYSTEM DESIGN (12 Hours)1. For the U.S. Navy at The Boeing Training Center, Philadelphia, PA, June 1984

L. BEVEL GEAR ASSEMBLY AND PATTERNING (8 Hours)1. United States Army - Corpus Christi Army Depot, Corpus Christi, TX, September

1983

M. GEAR TYPES, ARRANGEMENTS, & FAILURE MODES (8 Hours)1. Helicopter Transmission Design & Maintenance Workshop, Laval University,

Quebec City, Sponsored by The Canadian Department of National Defense, May 1990

2. Helicopter Transmission Design & Maintenance Workshop, Laval University, Quebec City, Sponsored by The Canadian Department of National Defense, May 1991

N. SINGLE FLANK GEAR INSPECTION (6 Hours)1. Harris Graphics Corporation, Dover NH September 1987

O. GEAR TECHNOLOGY: STATUS & TRENDS (3 Hours)1. General Motors Research Laboratories, Warren, MI, August 1988

P. STATICS AND DYNAMICS FOR ENGINEERING TECHNICIANS (20 Hours)1. Boeing Vertol Company, Philadelphia, PA 1975

Q. BASIC GEAR AND SPLINE DESIGN (32 Hours)1. Boeing Vertol Company, Philadelphia, PA 1980

R. GEAR MANUFACTURING - METHODS, TOOLS, MACHINES (3 Hours)1. Society of Manufacturing Engineers, Chapter 15, Philadelphia, PA, November

1996


2. Castrol Industrial North America (Lubricants), Downers Grove, IL September 1998

S. FAILURE ANALYSIS: THE APPLICATION OF FORENSIC GEAR ENGINEERING (8 Hours)1. AGMA Regional Meeting, Las Vegas, NV, January 20042. Philadelphia Gear Corporation National Engineering Meeting, King of Prussia,

PA February 20053. Dofasco Steel, Hamilton. ON Canada Two sessions, April 2005 4. Philadelphia Gear Corporation National Sales Meeting, Houston, TX July 20055. Crane Pro (Kone Cranes), Novi, MI December 2005 (Two Consecutive Sessions)6. Crane Pro (Kone Cranes), Novi, MI May 20067. John Deere Product Engineering Center, Waterloo, IA June 2010

T. The Extended Analysis of Surface Durability Failure Modes – Gear Load Capacity Rating Implications (8 Hours) 1. American Gear Manufacturers Association Regional Meeting, Seattle, WA

February, 2005

U. Detailed Gear Design – Beyond Simple Service Factors (20 Hours) 1. American Gear Manufacturers Association, Clearwater Beach, FL, November

20052. American Gear Manufacturers Association, Las Vegas, NV, April 20063. American Gear Manufacturers Association, Concordville, PA, October 20064. American Gear Manufacturers Association, Anaheim, CA, January 20075. American Gear Manufacturers Association, Ft. Lauderdale, FL, May 20076. American Gear Manufacturers Association, Pamplona, Spain, June 20077. American Gear Manufacturers Association, Scottsdale, AZ, March 20088. American Gear Manufacturers Association, Tyson’s Corner, VA, March 20099. American Gear Manufacturers Association, Lyman, SC, February 201010. American Gear Manufacturers Association, Las Vegas, NV, May 201111. NASA Jet Propulsion Laboratory, Pasadena, CA, July 201112. American Gear Manufacturers Association, Las Vegas, NV, December 201213. American Gear Manufacturers Association, Alexandria, VA On-Line Video14. American Gear Manufacturers Association, Las Vegas, NV, June 201315. American Axle and Manufacturing Company, Detroit, MI October 201316. American Gear Manufacturers Association, Las Vegas, NV, November 201317. American Gear Manufacturers Association, Las Vegas, NV, November 2014

The Detailed Gear Design – Beyond Simple Service Factors is also available as an On Line Video Presentation from the American Gear Manufacturers Association (www.agma.org) See this link for details:http://www.agma.org/events-training/detail/online-video-training-detailed-gear-designSome sessions of the Detailed Gear Design – Beyond Simple Service Factors Seminar are expanded to include a 4th day workshop session which utilizes


http://www.agma.org/events-training/detail/online-video-training-detailed-gear-design

http://www.agma.org/

PowerGear Windows™ Based Software to put the principles of the lecture sessions into hands on practice via real world problems.

V. Detailed Gear Design – Beyond Simple Service Factors + Workshop(32 Hours) 1. American Gear Manufacturers Association, Vienna, VA, March 20092. NASA Jet Propulsion Laboratory, Pasadena, CA July 2009

W. Gear Inspection – Geometric & Nondestructive - (8 Hours)1. Philadelphia Gear Corporation National Meeting, Mokena, IL April 2007

X. Gear Materials - Selection, Metallurgy, Heat Treatment, and Quality Control (24 Hours)1. American Gear Manufacturers Association, Concordville, PA, January 20082. American Gear Manufacturers Association, Concordville, PA, January 20093. American Gear Manufacturers Association, Clearwater Beach, FL, February 20114. Arrow Gear Company, On-Site, Downers Grove, IL March 20115. Arrow Gear Company, On-Site, Downers Grove, IL September 20116. American Gear Manufacturers Association, Milwaukee, WI, May 20127. American Gear Manufacturers Association, Clearwater Beach, FL, February 20138. American Gear Manufacturers Association, Clearwater Beach, FL, February 20149. American Gear Manufacturers Association, Clearwater Beach, FL, February 2015

Y. Gearbox CSI - Forensic Analysis of Gear & Bearing Failures - Useful Tools For Optimizing Gearbox Design - (24 Hours) 1. American Gear Manufacturers Association, Orlando, FL, February 20072. American Gear Manufacturers Association, Orlando, FL, November 20083. American Gear Manufacturers Association, Concordville, PA, October 20094. American Gear Manufacturers Association, Clearwater Beach, FL, December

20105. American Gear Manufacturers Association, Concordville, PA, January 20126. American Axle and Machine Company, Detroit, MI July 20127. American Gear Manufacturers Association, Baltimore, MD March 20138. American Axle and Manufacturing Company, Detroit, MI May 20139. American Gear Manufacturers Association, Philadelphia, PA March 201410. American Gear Manufacturers Association, Concordville, PA March 201511. Redstone Arsenal Army Base, Redstone, AL April 2015

Z. Gear System Technology Considerations for Wind Energy Applications - (3 Hours)1. Philadelphia Gear Corporation National Meeting, Las Vegas, NV April 2008

AA. Understanding Field Failure Observations- Evaluation, Identification, Mode, Progression Mechanism, Prevention, Correction, Redesign – (4 Hours)1. Philadelphia Gear Corporation National Meeting, Detroit, MI July 2008


BB. Gear Manufacturing & Inspection ― Methods, Practices, Application & Interpretation for the Design Engineer - (24 Hours)1. American Gear Manufacturers Association, Ft. Lauderdale, FL, May 20082. FL Smidth Company, Bethlehem, PA February 20093. US Army Aviation Engineering Directorate RDMR-AEZ, Redstone Arsenal, AL

October 20094. American Gear Manufacturers Association, Clearwater Beach, FL, November

20095. American Gear Manufacturers Association, Concordville, PA, September 20106. American Gear Manufacturers Association, Cleveland, OH, October 20117. Boeing Helicopters, Philadelphia, PA November – December 20118. American Gear Manufacturers Association, Las Vegas, NV, November 20129. American Gear Manufacturers Association, Chicago, IL, May 201310. American Gear Manufacturers Association, Rosemont, IL, June 2014

CC. Gearbox System Design - The Rest of the Story…Everything but the Gears and Bearings! - (24 Hours)1. American Gear Manufacturers Association, Ft. Worth, TX, May 20092. American Gear Manufacturers Association, Concordville, PA, May 20103. Pacific Rim Engineered Products, Surrey, BC, Canada, July 2010

i. Special 36 hour presentation with additional drawing & design review session added)

4. American Gear Manufacturers Association, Clearwater Beach, FL December 2011

5. American Gear Manufacturers Association, Clearwater Beach, FL June 20126. American Axle and Manufacturing Company, Detroit, MI September 20127. American Gear Manufacturers Association, Clearwater Beach, FL December

20128. American Gear Manufacturers Association, Clearwater Beach, FL October 20139. American Gear Manufacturers Association, Clearwater Beach, FL May 2014

DD. Steel Mill Gearing – Theory, Practice and Application (24 Hours) 1. ArcelorMittal Steel Company, East Chicago, IN, September 20102. Nucor Steel Company, Hickman, AS, October 20113. ArcelorMittal Steel Company. New Carlisle, IN, January 2012

EE. Webinar – "Gear Design’s Stepchild – Root Fillet Configuration"American Gear Manufacturers Association, On Line September 2011

FF. Gear Technology Basics For Mining Applications - Failure Mode and Prevention - (24 Hours) 1. FLSmidth Company in Association with the American Gear Manufacturers

Association (AGMA), Hotel Plaza el Bosque, Las Condes, Santiago, Chile April 2013


GG. Gear Technology Basics – (24 Hours)1. Curtiss Wright Controls, Gastonia, NC November 2013

HH. Bevel Gear Systems ― A Practical Guide for the Design Engineer - (24 Hours)1. American Gear Manufacturers Association, Alexandria, VA, October 20142. Ontario Drive & Gear, New Hamburg, Ontario, Canada, January 20153. American Gear Manufacturers Association, Rosemont, IL, June 2015

II. Advanced Gear Technology for Aviation Maintenance Engineers - (24 Hours)1. RDMR-AEM, Corpus Christi Army Depot, Corpus Christi, TX, June 2015

Special Seminars:Over the last fifteen years, Mr. Drago has developed and presented a series of seminars with the intention of introducing young children (as young as pre-school!) to careers in engineering. These seminars take special care to address both boys and girls equally).

JJ. Flight! (2 Hours – Children assemble foam model airplanes and “straw” helicopters. Experiments include how “lift” makes airplanes & helicopters fly. Experiments culminate with races and “target” practice for accuracy of flight)(Presentation for Kindergarten & Elementary School Children to introduce them to Engineering as a career possibility) 1. Kennett Square School System – Kindergarten, Kennett Square, PA April 19982. Kennett Square School System – Kindergarten, Kennett Square, PA April 19993. Kathleen H. Wilbur Elementary – 2nd Grade, Bear, DE May 20004. Kennett Square School System – Kindergarten, Kennett Square, PA April 20015. Kennett Square School System – Kindergarten, Kennett Square, PA May 20026. Drexel Hill Middle School – 6th Grade, Upper Darby, PA April 20037. Kennett Consolidated School System – Kindergarten, May 20048. Kennett Consolidated School System – Kindergarten, May 20029. East Ward School 2nd Grade, Downingtown, PA May 200310. East Ward School 3rd Grade, Downingtown, PA March 200411. Kennett Square School System – Kindergarten, Kennett Square, PA May 200512. Kennett Square School System – Kindergarten, Kennett Square, PA April 200613. Kathleen H. Wilbur Elementary- 2nd Grade, Bear, DE May 200814. Garnet Valley School – Kindergarten, Concord Twp, PA March 200915. Garnet Valley School – 1st Grade, Concord Twp, PA April 201016. Garnet Valley School – 2nd Grade, Concord Twp, PA April 201117. Elam Hearts and Hands Preschool, Glen Mills, PA February 201318. West Chester University, Grandparents University Program, West Chester, PA

June 201319. West Chester University, Grandparents University Program, West Chester, PA

June 2014


KK. Engineering! – Simple Machines (2 hours - Children build and use Full Size Block & Tackle and Levers to lift their grandparents several feet off the ground! Free time activity includes building and using model catapults)1. West Chester University, Grandparents University Program, West Chester, PA

June 2014LL. Wind Power! (2 Hours - Children build experiment with “Land Yachts” to

determine best sail configuration then race against each other for small prizes) 1. Kathleen H. Wilbur Elementary- 2nd Grade, Bear, DE December 2014




Glen Mills, PA 19342-1519V: 610-358-0785; F:610-358-2776; Web: www.gear-doc.com; E-Mail: [email protected]

PATENTS

United States Patent Number 4,640,149Issued 3 February 1987Inventor: Raymond DragoHigh Profile Contact Ratio, Non-Involute Gear Tooth Form and Method

United States Patent Number 6,966,865Issued 22 November 2005Inventor: Raymond Drago, Joseph W. Lenski, Jr, Mark J. RobuckHigh Ratio, Reduced Size Epicyclic Gear Transmission for Rotary Wing Aircraft with Improved Safety and Noise Reduction

SOCITY MEMBERSHIPS

AGMA ― American Gear Manufacturers AssociationASME ― American Society of Mechanical EngineersSTLE ― Society of Tribologists and Lubrication EngineersAIST ― Association for Iron and Steel Technology




1REPRESENTATIVE CLIENTS



Glen Mills, PA 19342-1519V: 610-358-0785 F: 610-358-2776 Web: www.gear-doc.com E-Mail: [email protected]

ADA COGENERATION, Ada, MIADVANCED TECHNOLOGIES, INC., Newport News, VAACUTUS GLADWYN, Valparaiso, INAIR PRODUCTS & CHEMICALS, INC., Allentown, PAAIR PREHEATER COMPANY, Alstom Power, Inc., Wellsville, NYAIRTRUST (HONG KONG) LIMITED, Wanchi, Hong KongAK STEEL COMPANY

Ashland Works, Ashland, KYMiddletown Works, Middletown, OHRockport Works, Rockport, INButler Works, Butler, PA

ALCAN ROLLED PRODUCTS, Oswego, NYALCOA MILL PRODUCTS, Lancaster, PAALCOA ROLLED PRODUCTS, Point Henry Works, Geelong, Victoria, AustraliaALUMINUM COMPANY OF AMERICA (ALCOA) Davenport, IAALCOA ROLLED PRODUCTS, Lancaster, PAALSTOM POWER INC., Windsor, CT Milling Systems Division Boiler and Environmental Plant Services DivisionALCOA WARWICK, AMERICAN ELECTRIC POWER SERVICE COMPANY, New York, NYAMERICAN GEAR MANUFACTURERS ASSOCIATION, Alexandria, VAAMERICAN LOHMAN CORP., Aero Gear Division, Hillside, NJAMEREN ENERGY, Effingham, ILANDRITZ VA TECH HYDRO USA, Charlotte, NCANDRITZ VA TECH HYDRO CANADA, Stoney Creek, OntarioANGLO AMERICAN CHILE, Santiago, ChileASSEMBLED SYSTEMS, INC., Horsham, PAASSOCIATED ENTERPRISES, Painesville, OHAMERICAN AXLE & MANUFACTURING, INC., Detroit, MIAMERICAN SOCIETY OF MECHANICAL ENGINEERS, New York, NY ARCELORMITTAL STEEL

- DOSASCO STEEL, Hamilton, ON- BURNS HARBOR, Burns Harbor, IN- INDIANA HARBOR WEST, East Chicago, IN- INDIANA HARBOR EAST, East Chicago, IN - I/N TEK I/N KOTE, New Carlisle IN




ARCH MINERAL COMPANY, St. Louis, MOARCTAS Clean Energy, Houston, TXARROW GEAR COMPANY, Downers Grove, ILASHGROVE CEMENT COMPANY, Chanute, KSAPPLIED INDUSTRIAL TECHNOLOGIES, Evansville, INARIEL CORPORATION, Mount Vernon, OHThe AMC GROUP, King of Prussia, PAAVIATION ENGINEERING DIRECTORATE (AED) Redstone Arsenal, Huntsville, ALBABCOCK & WILCOX POWER GENERATION GROUP, INC., Barberton, OhioBALSAMO AVIATION & TRIAL LAW FIRM, Lauderdale by the Sea, FLBARRICK GOLDSTRIKE MINES, Elko, NVBAYSIDE CONTROLS, Port Washington, NYBATH IRON WORKS, Bath, MEBEAVIN COMPANY, Baltimore, MDBECHTEL CORPORATION, San Francisco, CABECHTEL INTERNATIONAL CORPORATION, Frederick, MDBECHTEL AUSTRALIA, LTD, PTY, Mayfield, NSW, AustraliaBETHLEHEM STEEL COMPANY, Bethlehem, PABIF, A Unit of General Signal, West Warwick, RIBIRD MACHINE COMPANY, South Walpole, MABLACK & VEATCH, Kansas City, KSBOC Process Plants, Murray Hill, NJTHE BOEING COMPANY

Houston Space Flight Center, Houston, TXPortland Gear Facility, Portland, ORBoeing Helicopters, Ridley Park, PA

BRIGGS & STRATTON CORPORATION, Milwaukee, WIBUTTERWORTH PUBLISHERS, Stoneham, MABUCYRUS INTERNATIONAL, Inc., South Milwaukee, WICARSON HELICOPTERS, INC., Perkasie, PACARRIER CORPORATION, Syracuse, NYCAMELOT ENGINEERING, Burbank, CACAMPBELL - HAUSFELD Company, Harrison, OHCAPITAL ENGINEERING, INC., Hammond, INC. C. MINERA CANDELARIA, Las Condes, ChileCASTROL INDUSTRIAL NORTH AMERICA, Downers Grove, ILCHICAGO COLD ROLLING COMPANY, Portage, INCHL SYSTEMS (C. H. Landis), Souderton, PACHRISTINI TECHNOLOGIES, Philadelphia, PACLAY & PHILLIPS, Attorneys at Law, (Travelers Insurance Co.) Radford, VACLEVELAND CLIFFS IRON CO, Marquette, MICLIPPER WINDPOWER, Carpinteria, CA COBE, BCT, INC, Blood Component Technology, Lakewood, COCOHEN, JAYSON, FOSTER, P.A., Tampa, FLCOLUMBIA HELICOPTERS, INC, Portland, ORCOMPANIA MINERA DISPUTADA DE LAS CONDES, S. A., Santiago, Chili


CONRAIL, Philadelphia, PACOMBUSTION ENGINEERING POWER SYSTEMS, Windsor, CTCOOPER TURBOCOMPRESSORS INC, Buffalo, NYRDMR-AEM, CARGO TEAM, CORPUS CHRISTI ARMY DEPOT, Corpus Christi, TXCRANDALL DRY DOCK ENGINEERS, INC., Chelsea, MACRANE PRO, Milwaukee, WICROWN EQUIPMENT COMPANY, New Breman, OHCOZEN & O’CONNOR, Attorneys at Law, Charlotte, NCDANIELI CORPORATION, Pittsburgh, PADAMAN INDUSTRIES, East Brady, PADAVIS-STANDARD, Division of Crompton & Knowles Corporation, Pawcatuck, CTDELAVAL TURBINE DIVISION, Trenton, NJDENNY AND PATANE, Attorneys at Law, Philadelphia, PADEPT. OF THE ARMY, ST. PAUL DISTRICT, CORPS OF ENGINEERS, St. Paul, MNDELPHI SAGINAW STEERING SYSTEMS, Saginaw, MIDELTA-T Corporation, Lexington, KYDELTA POWER COMPANY, LLC, Troy, MIDIAMOND SHAMROCK ALBERTA GAS CO., Edmonton, Alberta, CanadaDIAMOND POWER SPECIALTY COMPANY, Babcock & Wilcox, a McDermott company,

Lancaster, OHDODGE, CST, Seattle, WADODGE RELIANCE ELECTRIC, Greenville, SCDODGE - ROCKWELL, Greenville, SCDOFASCO STEEL COMPANY, Hamilton, Ontario, CanadaDURST DIV. REGAL-BELOIT CORP; Clinton, WID. STEWART & ASSOCIATES, Pittsburgh, PAEATON CORPORATION, TRANSMISSION DIVISION, Kalamazoo, MIEIMCO PROCESS EQUIPMENT CO., Salt lake City, UTELLIOTT TURBOMACHINERY, Jeannette, PAEMCO Gears, Chicago, ILEMERSON JOHNSON MACKAY, INC. North Hollywood, CAELECTRONIC POWER DESIGN, INC., Houston, TX 77020ELGILOY SPECIALTY METALS, Elgin, ILEDUCATIONAL SYSTEMS WORKSHOPS, Cranberry Township, PAENERSUL, L.P., Calgary, AB, CANADAESSROC – ITALCEMENTI , Nazareth, PAFACTORY MUTUAL SYSTEM

- Melbourne, Australia- Concord, CA

FAILURE ANALYSIS ASSOCIATES, Menlo Park, CAFAIRFIELD MANUFACTURING COMPANY, INC., Lafayette, INFALK CORPORATION, Milwaukee, WIF. E. MYERS, INC., Ashland, OHFERMENTA PRODUCTS, INC., West Chester, PAFERRILL AND LOGAN, Attorneys at Law, Ft. Washington, PA FETSKO AVIATION AND SALES, INC., Media, PA (Spitfire Helicopter Company)


FFE MINERALS, Bethlehem, PA FL SMIDTH CO., Bethlehem, PAFM GLOBAL INSURANCE, Victoria, AustraliaFORD MOTOR COMPANY

- Transmission and Chassis Division, Livonia, MI - Office of the General Counsel, Dearborn, MIFOSTER, SWIFTE, COLLINS, & COEY, Attorneys at Law, Lansing, MIFROST, BROWN, TODD, Attorneys at Law,

- Knoxville, KY- Cincinnati, OH

FMC Airport Products, Orlando, FLFMC Corporation, Naval Systems Division, Minneapolis, MNFRANKE GEAR COMPANY, Chicago, ILFRANKLIN INSTITUTE RESEARCH LABORATORIES, Philadelphia, PAFROST, BROWN, TODD, Attorneys at Law, Lexington, KYFUNK MANUFACTURING, Division of Cooper Industries, Coffeyville, KSFULBRIGHT & JAWORSKI L.L.P., Attorneys at Law, Houston, TexasGCA/PAR SYSTEMS (Robotics), St. Paul, MNGEAR ENGINEERS, Seattle, WAGEARTECH, Albany, CAGEA POWER COOLING SYSTEMS, San Diego, CAGENERAL ELECTRIC COMPANY

- Projection Display Devices Division, Syracuse, NY- GE Aviation, Lynn, MA

- Steam Turbine - Generator Division, Lynn Operations, Lynn, MA- Aircraft Engine Business Group, Cincinnati, OH - Transportation Systems (Railroad Locomotive) Group, Erie, PA- Electric Service Center (Apparatus Service), Charleston, WV

GENERAL FILTER COMPANY, Ames, IAGeneral Motors

-GM Technical Center, Warren, Michigan-Lordstwon Assembly Plant, Lordstown, OH

GENERAL POWER CORPORATION, Paoli, PAGENESIS PARTNERS, LTD., Horsham, PA 19044GENEVA STEEL COMPANY, Provo, UTGEO. M. MARTIN COMPANY, Emeryville, CAGLOBE MOTORS, INC., Dayton, OHGLOBE MACHINE COMPANY, Canton, GAGKN TORQUE TECHNOLOGY, Auburn Hills, MIGMH ASSOCIATES, Trenton, NJGOODRICH ACTUATION SYSTEMS, Solihull, West Midlands, UKGREAT LAKES DREDGE & DOCK COMPANY, Oak Brook, ILGROLIER, INCORPORATED, New Book of Knowledge Encyclopedia, Hawleyville, CTGENERAL MOTORS CORPORATION

- Technical Center, Warren, MI- Chevrolet-Pontiac-Canada Group, Troy, MI


- Research Laboratory, Warren, MI- Hydramatic Division, Toledo, OH

GEORGIA POWER COMPANY, CHATTAHOOCHEE HYDRO GROUP, Fortson, GeorgiaGIDDINGS & LEWIS MACHINE TOOL COMPANY, Fond du Lac, WIGRAYCOR CORPORATION, Homewood, ILGREEY LIGHTNIN, Montreal, Quebec, CANADAGRIFFIN LeGrand, An EVI Company, Calgary, CANADAGRIFFIN GEAR COMPANY, Spartanburg, SCG-STEEL, Bankhai Rayong City, ThailandHALM INDUSTRIES, INC, Glen Head, NYHANOVER GEAR CO., Hanover, PAHARLEY-DAVIDSON MOTOR COMPANY, INC. Milwaukee, WIHARNISCHFEGER P&H, Milwaukee, WIHARRIER TECHNOLOGY, IN., Santa Barbara, CAHARRIS GRAPHICS CORPORATION

- Production Press Division, Westerly, RI - Web Press Division, Dover, NH

HAWLEY, TROXELL, ENNIS & HAWLEY, Attorneys at Law, Boise, IDHAZEN AND SAWYER ENVIRONMENTAL ENGINEERS & SCIENTISTS, New York, NYHEWLETT-PACKARD AVONDALE DIVISION, Avondale, PAHIBBING TACONITE COMPANY, Hibbing, MNHOLLAND AND KNIGHT, LLP Attorneys at Law, Falls Church, VAHORSBURGH & SCOTT COMPANY, Cleveland, OHHUMBOLDT WEDAG, INC., Norcross, GAHUB CITY, INC. - REGAL-BELOIT CORPORATION, Aberdeen, SDI/N TEK STEEL CORPORATION, New Carlisle, ININGERSOLL-RAND Company, Productivity Solutions, Annadale, NJINTERGEN,

- Burlington, MA- Mexicali, Mexico

INTI RAYMI S. A., MINA KORI KOLLO, La Paz, BOLIVIAIPSCO STEEL CO.

- Regina, Saskatchewan, CANADA- Muscatine, IA- St. Paul, MN

INTERNATIONAL STEEL GROUP, East Chicago, ILI2S, LLC (formerly INTEGRATED INDUSTRIAL SYSTEMS), Yalesville, CTiROBOT CORPORATION, Bedford, MAISG STEEL, Indiana Harbor, INJACKSON MCDONALD, Attorneys at Law, Perth, WA, AustraliaJ. E. SAGUE & ASSOCIATES, Philadelphia, PAJOHN DEERE PRODUCT ENGINEERING CENTER, Waterloo, IAJONES DAY, Attorneys at Law, Atlanta, GAKBE+, Inc., Syracuse, NYKCI CRANE PRO SERVICES, Novi, MIKENDALL O. CLAY, Attorney at Law


KENNECOTT UTAH COPPER, Copperton Concentrator, Bingham Canyon, UTKENTUCKY ELECTRIC STEEL, Ashland, KYKEIM PUBLISHING, New York, NYKINNEY VACUUM COMPANY, A Unit of General Signal, Canton, MA KOHLER COMPANY - ENGINE DIVISION, Kohler, WIKONGSBERG AUTOMOTIVE; Willis, TXKone Escalator R&D Coal Valley, ILKORE GEAR COMPANY, Destin, FLKIRKLAND & ELLIS, Attorneys at Law, Chicago, ILLA CANDELARIA MINE, Copiapo, CHILELANGSTON, A Member of the Molins Group, Cherry Hill, NJLANTEC INDUSTRIES, Inc., Langley, BC, CanadaLAVAL UNIVERSITY, Quebec City, CanadaLEATHERWOOD, WALKER, TODD, & MANN, Attorneys at Law, Greenville, SCLEAR ROMEC DIVISION - CRANE AEROSPACE & ELECTRONICS, Elyria, OH LeROI INTERNATIONAL, INC. Sidney OHLEXMARK, IBM Computer Printers, Lexington, KYLIGHTNIN MIXERS, Rochester, NYLIGHTNIN MIXERS LIMITED, Poynton, Stockport, Cheshire, Great BritainLISKOW & LEWIS, Attorneys at Law, Lafayette, LALONG & LEVITT, Attorneys at Law, San Francisco, CALONG MACHINE & TOOL, Cleona, PALORD CORPORATION, Erie, PALOUISIANA HYDROELECTRIC LTD, Vidalia, LALOWER LAKE DOCK COMPANY, Cleveland, OHLTV STEEL COMPANY

- Cleveland Works, Cleveland, OH- Indiana Harbor Works, East Chicago, IL

LYTAL, REITER, CLARK, FOUNTAIN & WILLIAMS, Attorneys at Law, W. Palm Beach, FLM3 ENGINEERING AND TECHNOLOGY CORPORATION, Tucson, AZMACDON INDUSTRIES, LTD. Winnipeg, Manitoba, CANADAMAGMA NEVADA MINING, Ely, NVMARINE TURBINE TECHNOLOGY, Franklin, LAMARSH TECHNOLOGIES, Chesterfield, MOM & M PRECISION SYSTEMS, An Acme-Cleveland Company, West Carrollton, OHMCKENNA CONTRACTING, LLC, Sarasota, FLMETSO GEARS, Cambridge, Ontario, CANADAMID-ATLANTIC CRANE & EQUIPMENT CO., Raleigh, NC MILES & STOCKBRIDGE, P. C., Attorneys at Law, Baltimore, MDMILLER CONSULTING GROUP, Indianapolis, INMINCORP ENGINEERS AND CONSTRUCTORS, Englewood, COMITSUBISHI ELECTRIC POWER PRODUCTS, INC. Warrendale, PAMITSUBISHI ELECTRIC & ELECTRONICS USA, INC., New York, NYMIXING & MASS TRANSFER TECHNOLOGIES, LLC, State College, PAMIXING EQUIPMENT CO., A Unit of General Signal, Rochester, NYMILTON ROY COMPANY, Ivyland, PA


MILWAUKEE GEAR COMPANY, INC., Milwaukee, WIMINERAL PROCESSING SYSTEMS, INC., York, PAMONTGOMERY ELEVATOR COMPANY, Moline, ILMOOG, INC.

- Missile Systems Division, East Aurora, NY- Aircraft Group, Salt Lake Operations, Salt Lake City, UT 84119-1112

MOOT & SPRAGUE, Attorneys at Law, Buffalo, NYMORGAN, MELHUISH, MONAGHAN, MEYER, ARVIDSON, ABRUTYN, & LISOWSKI, Counselors at Law, Livingston, NJMORGAN CONSTRUCTION COMPANY, Mining Truck Wheel Motors; Worcester, MA MOYER & BERGMAN, Attorneys at Law, Cedar Rapids, IANASA JET PROPULSION LABORATORY, Pasadena, CA June 2009NASH ENGINEERING COMPANY, Norwalk, CTNATIONAL MACHINERY COMPANY, Tiffin, OHNATIONAL RENEWABLE ENERGY LABORATORIES, Golden, CONATIONAL STEEL COMPANY

GRANITE CITY STEEL DIVISION Granite City, ILGREAT LAKES DIVISION, Ecorse, MI

NAVAIR Propulsion & Power Engineering, Patuxent River, MD NAVAL AIR WARFARE CENTER

Patuxent River, MDLakehurst, NJ

NAVAL AVIATION DEPOTCherry Point, NCNorth Island, San Diego, CA

USNUNK NAVAIR - SECONDARY POWER, Patuxent River, MDNEG Micon, Randers, DenmarkNEWCREST CADIA MINES, Orange, New South Wales, AustraliaNEW VENTURE GEAR, NEW PROCESS GEAR DIVISION, East Syracuse, NYNEW ZEALAND MILK PRODUCTS CORP., Allerton, IANETZSCH, INC, Exton, PANORTHLAND, A Scott Fetzer Company, Watertown, NYNOVELIS CORPORATION, Oswego, NYNUCOR STEEL CORPORATION

- Berkeley, SC - Hickman, AS- Decatur, AL- Memphis, TN

NUTTALL GEAR CORPORATION, Niagara Falls, NYOCCIDENTAL CHEMICAL CORPORATION, Niagara Falls, NYOCCIDENTAL CHEMICAL CORPORATION, Wilmington, DEOGDEN MURPHY WALLACE P.L.L.C., Attorneys at Law, Seattle, WAONTARIO DRIVE AND GEAR, New Hamburg, ON CANADAOTTERTAIL CORPORATION, Fargo, ND (Fergus Falls, MN)OUTBOARD MARINE CORPORATION (OMC), Milwaukee, WIP & H MINE PRO SERVICES, Milwaukee, WI


PACIFIC RIM ENGINEERED PRODUCTS, Surrey, BC, CANADAPARKER AEROSPACE CONTROL SYSTEMS DIVISION, Irvine, CAPARKER - ZENITH PUMPS, Sanford, NCPATTERSON BELKNAP WEBB TYLER Attorneys at Law, New York, NYPCS CORY DIVISION, Saskatoon, SK CanadaPEPPER, HAMILTON, & SCHEETZ, Attorneys at Law, Philadelphia, PAPHELPS DODGE CORPORATION, LA CANDELARIA MINE, Copiapo, ChilePHILADELPHIA GEAR CORPORATION, Norristown, PAPICANDS - MATHER COMPANY, Cleveland, OHPITMAN DIVISION, A. B. Chance Co., Grandview, MOPITTMAN CORPORATION, A Subsidiary of Penn Engineering and

Manufacturing Corp., Harleysville, PAPLUNKETT & COONEY, Attorneys at Law, Detroit, MIPMC Industries, Wickliffe, OHPOWER PRODUCT SYSTEMS - KONGSBERG AUTOMOTIVE, Willis, TX PRATT INDUSTRIES - CONYERS MILL, Conyers, GAPRO-TEC COATING COMPANY, Leipsic, OHPROSOFT CORPORATION, Pelham, ALPSE&G, Bridgeport, CTPONNS AND THOMAS, Eddystone, PAPRIDE MOBILITY PRODUCTS, Exeter, PAPUMP & POWER EQUIPMENT, INC., Lenexa, KSPURDY MANUFACTURING COMPANY, Manchester, CTQUAKER GEAR COMPANY, Huntingdon Valley, PARAYTHEON CORPORATION, Lexington, MARENOLD - AJAX CORP., Westfield, NYREPUBLIC TECHNOLOGY, Lorain, OHREPUBLIC ENGINEERED PRODUCTS, Akron, OHRESEARCH - COTRELL, Hamon Cooling Tower Division, Sommerville, NJ REXNORD - PROCESS MACHINERY DIVISION, Milwaukee, WIRG STEEL, Sparrows Point, MDRICHMOND TIMES-DISPATCH NEWSPAPERS, Mechanicsville, VARILEY GEAR CORPORATION, St. Augustine, FLRIDGID TOOL COMPANY, Elyria, OHROBINS, KAPLAN, MILLER & CIRESI, Attorneys at Law, Minneapolis, MNROCKWELL AUTOMATION, Greenville, SCROCKWELL INTERNATIONAL CORPORATION

- Graphics Systems Division, Cedar Rapids, IO- Graphics System Division, Chicago, IL- Automotive Operations, Troy, MI

ROTEK, INCORPORATED, Aurora, OHROUGE STEEL CO., Dearborn, MIRUBIN/ANDERS SCIENTIFIC, INC. Brookline, MAR&R Transmissions, Aston, PASAGINAW DIVISION, GENERAL MOTORS CORPORATION, Saginaw, MISANDEN INTERNATIONAL, INC., Wylie, TX


SATURN CORPORATION (General Motors), Troy, MISAUER SUNDSTRAND, INC., Ames, IASCHLUMBERGER ANADRILL, Houston, TXSCHIFF, HARDIN & WAITE, Attorneys at Law, Chicago, ILSEAGRAM’S AMERICA, NORTH AMERICAN MANUFACTURING, Lawrenceberg, INSIMAN AND FORD, Attorneys at Law, Springhouse, PA SINCLAIR KNIGHT MERZ PTY LTD. CONSULTING, Perth, AustraliaSMITH & MOORE, LLP - Attorneys at Law, Dallas, TexasSMS ENGINEERING, Pittsburgh, PASMS MILLCRAFT, Washington Township, PASNC Lavalin, Toronto, Ontario, CanadaSNC-Lavalin America, Pittsburgh, PASOCIETY OF MANUFACTURING ENGINEERS, Dearborn, MISPECTRUM PRODUCTS, INC., Wilmington, DESPS TECHNOLOGIES, INC, Fort Washington, PASSAB – IOWA, INC. Muscatine, IASTATE OF MARYLAND, Attorney General's Office, Contract Litigation Unit, Baltimore, MDSTERLING TOGGLE INC, West Babylon, NYSTEWARD MACHINE COMPANY, Birmingham, ALSUNDSTRAND CORPORATION - Pneumatic Systems Division, Advanced

Systems Group, Rockford, ILSVEDALA INDUSTRIES, York, PASVEDALA INDUSTRIES, Montreal, Quebec, CANADATHERAKOS IMMUNE CELL THERAPY, Exton, PATELEDYNE CONTINENTAL MOTORS, General Products Division, Muskegon, MI THIELSCH ENGINEERING ASSOCIATES, INC., Cranston, RITHELEN REID BROWN RAYSMAN & STEINER, Attorneys at Law, San Francisco, CATHOMPSON COBURN, LLP, Attorneys at Law, St. Louis, MOTHYSSENKRUPP Elevator Co., Middleton, TNTHYSSENKRUPP STEEL USA, LLC, Calvert, AL TILDEN MINING COMPANY, Ishpeming, MITIMKEN, Canton, OHTRICO STEEL COMPANY, Decatur, ALTRILECTRON INDUSTRIES, INC., Hawthorne, NJUNIGEAR INDUSTRIES INC.; Baie d’Urfé (Montréal), Québec, CanadaUNITED DEFENSE L. P., Minneapolis, MNUNITED STATES ARMY

- AVSCOM, St. Louis, MO- Corps of Engineers, St. Paul, MN- Corps of Engineers, Rock Island, IL - Corpus Christi Army Depot, RDMR-AEM, Corpus Christi, TX- Naval Air Propulsion Center, Trenton, NJ- Naval Ship Engineering Center, Philadelphia Navy Yard, PA- Naval Supply Systems Command, Norfolk Naval Base, Price Fighter Squadron- Naval Air Station, Pensacola, FL- Propulsion Systems Branch AMSRD-AMR-AE-P-S, Huntsville, AL


- US Army Aviation Engineering Directorate RDMR-AEZ, Redstone Arsenal, ALUSX CORPORATION (UNITED STATES STEEL)

- Clairton Works, Clairton, PA- Edgar Thompson Works, Braddock, PA- Fairfield Works, Fairfield, AL- Fairless Works, Fairless Hills, PA- Gary Works, Gary, IN- Granite City Works- Great Lakes Works- USSK Kosice, Slovakia- KOBE Works, Lorain, OH- Lorain Tubular Works, Lorain, OH- Minntac, Mt. Iron, MN- Mon Valley Works, Dravosburg, PA- Technical Center, Pittsburgh, PA- UPI Posco, Pittsburg, CA- USS Serbia Works Goranska, Serbia- USS Keetac, Keewatin, MN

UNIVERSAL TECHNICAL SYSTEMS (UTS), Rockford, ILUNITED TECHNOLOGIES CORPORATION

Research Center, East Hartford, CTPratt & Whitney Space Exploration, West Palm Beach, FL

UNIVERSITY OF WISCONSIN - Milwaukee, WI- Madison, WI

UNIVERSITY OF TULSA, Tulsa, OKUS FILTER – ENVIREX PRODUCTS, Waukesha, WI VAN COTT, BAGLEY, CORNWALL & McCARTHY, Attorneys at Law,

Salt Lake City, UTVAPOR - MARK IV TRANSPORTATION PRODUCTS GROUP, Nile VA TECH HYDRO CANADA Inc., Stoney Creek, Ontario, CANADAVA TECH ESCHER WYSS - CANADA, St, Catherines, Ontario, CANADAVELAN VALVE INC., Montreal, Quebec, CANADAVERSON PRESS CORP., A DIVISION OF ALLIED PRODUCTS CORP, Chicago, ILVICEROY GOLD CORPORATION, Castle Mountain Mine, Searchlight, NVV&M STAR STEEL, Youngstown, OHVOEST - ALPINE Corp., Pittsburgh, PAWADLAND & ACKERMAN, COUNSELORS AT LAW, Andover, MAWAJAX INDUSTRIAL COMPONENTS, Lachine, QC, CANADAWARN INDUSTRIES, INC., Milwaukee, ORWALKER PROCESS CORPORATION, Division of Chicago Bridge & Iron Company,

Aurora, ILWAUKESHA ENGINE, Waukesha WIWEIL, GOTSHAL & MANGES LLP, Attorneys at Law, Washington, DCWELDING ENGINEERS, INC., King of Prussia, PA


WESTAR CORPORATION, St. Louis Engineering Center, St. Charles, MOWESTECH, Inc., Salt Lake City, UTWESTINGHOUSE ELECTRONIC SYSTEMS GROUP, Baltimore, MDWESTVACO CORPORATION

- Bleached Board Div., Covington, VA- Corporate Engineering, New York, NY- Fine Papers Division, Luke, MD - Fine Papers Division, Wickliffe, KY - Kraft Division, North Charleston, SC

WESTON, BENSHOOF, ROCHEFORT, RUBALCAVA, MacCuish, LLP, Attorneys at Law, Los Angeles, CA

WESTECH CORPORATION, Salt Lake City, UTWHEELING-PITTSBURGH STEEL CORPORATION, Wheeling, WVWHEELER TRIGG KENNEDY LLP, Attorneys at Law, Denver, COWHIRLPOOL

- KitchenAid Small Appliance Technology Center, St. Joseph, MIWHITE OLIVER & AMUNDSON, APC, Attorneys at Law, Denver, San Diego, CA 92101 WHITE SUNDSTRAND MACHINE TOOL COMPANY, Belvidere, ILWINOOSKI ONE PARTNERSHIP, Winooski, VTWINSMITH, Peerless - Winsmith, Inc., Buffalo, NYWORTHINGTON STEEL CO, Decatur, ALXTEK, Cincinnati, OHYORK EQUIPMENT CO., York, PA


Roy J. CunninghamSenior Metallurgical Engineer


RESUME'

Roy J. Cunningham, Senior Metallurgical Engineer

Drive Systems Technology, Inc.


Glen Mills, PA 19342-1519Phone: 610-358-0785 Fax: 610-358-2776

Web: www.gear-doc.com; E-Mail: [email protected]

Mr. Cunningham holds a Master of Engineering Science Degree in Metallurgical/Materials Engineering from Drexel University (1970), a Bachelor of Science Degree in Metallurgical Engineering from Drexel Institute of Technology (1967) and has had additional studies in Fracture Mechanics of Metallic Materials from Lehigh University (1978) and Advanced Processing Methods of Steel Manufacture from the American Society for Metals, Metals Park, Ohio (1980).

He served as Senior Manager for the Materials Engineering Dept. of the Boeing Company – Helicopters Division until his retirement after 34 years of service. Mr. Cunningham’s primary interests at Boeing were in the areas of Aerospace Materials Processing, Heat Treatment of Aerospace Gearing, Aircraft Materials Testing, Failure Analysis, Corrosion Testing/Evaluations and Prevention, Quality Control Inspections, and Basic Steel Mill Processing. He was also responsible for research and development in the areas of the Development and Heat Treatment of Advanced Gear Materials, Testing and Evaluation of Cast and HIP'ed titanium/precipitation hardening stainless steel cast components and Fracture Toughness/Threshold Fatigue Testing of Improved/Advanced Gear Steels.

At Boeing he was responsible for the direction and overall activities of approximately 50 Engineers and Engineering Technicians in the Metals and Composites and Standards Groups to insure the appropriate compliance and proper use and processing of various materials on all company programs. These included the Chinook, Sea Knight, V22 Osprey aircraft, the Comanche Helicopter and JSF aircraft. In addition, he provided mentoring in the areas of materials, processes, failure analysis, corrosion and its prevention, manufacturing plan reviews, engineering drawing review and vendor related problems/activities for all critical aircraft component manufacture. He was responsible for IR&D in the Materials Engineering Group which was primarily related to advanced material processing techniques. He served as Company Representative to and actively participated in the AGMA Metallurgy and AGMA Aerospace Gearing Committees. He was Subcommittee Chairman of the Penn State (State College) ARL Advanced Gear materials program for the development and testing of advanced gear materials including a new corrosion resistant gear steel for aerospace applications.

Additional accomplishments include: Granted patent # 3885995 for the unique process (preoxidation) for carburizing high hot hardness tool steel, (The preoxidation process is used for



all advanced gear steel components in Chinook transmissions); developed the processing requirements for producing powder metallurgy components from an advanced high hot hardness tool steel and completed a program for the development of a high temperature vacuum carburizing technique for gear steels.

As Senior Manager, he was responsible for five (5) Materials and Process Technical Laboratories. During this time he updated all Materials Laboratories with the latest technological equipment to insure state of the art analyses were performed. This included instruments such as an SEM/EDAX, TEM, X-ray Diffraction, Polarized Light Microscope, Digital Photographic Processing, Automated Microhardness Testing units. Represented Boeing in a number of litigation efforts, have been deposed numerous times and been designated as an expert witness in regards to failure investigations of various critical components related to the Chinook and Sea Knight helicopters. He has given various presentations to customers, subcontractors, other aerospace companies and related vendors on subjects such as ‘crevice corrosion of gear steels’, grinding burn evaluations of carburized and non-carburized materials, development of vacuum carburizing techniques and the advancement and processing requirements for high hot hardness gear materials. During 1973 - 1974 M. Cunningham was employed by Shieldalloy Co., in Newfield, NJas Assistant Superintendent of Melting and Smelting where he was responsible for supervising the aluminum master alloy production department. Responsibilities included developing quality control procedures and standards for melting and production of aluminum-titanium-boron hardener alloys, improving manufacturing methods to decrease equipment down time while increasing production output. This work allowed him to develop an understanding of the metallurgical mechanics of Aluminum master and Ferro alloy melt processing along with a basic understanding of electric furnace, induction furnace and aluminothermic furnace reactions and operations. Mr. Cunningham has been engaged as senior Metallurgical Engineer with Drive Systems Technology, Inc. from 1972 to present on a part-time/full time basis. Emphasis has been on Materials Engineering – evaluating and solving materials and processing problems, determining the cause and nature of failed materials, components and systems, making recommendations on how to prevent similar problems in the future along with performing numerous quality control inspections of gearing type components. 1) Investigations involved but are not limited to:

a) Failures of Carburized and Hardened, Through Hardened, Flame Hardened, and Induction Hardened Gears –Modes of failure included spalling, pitting, case crushing, tooth tip cracking, tooth bending fatigue, entrapped exogenous inclusions, grinding burns/cracks, etc..

b) Heat treat processing discrepancies related to carburizing, induction hardening, flame hardening, nitriding and through hardening processes and includes design, installation and environmental issues.

c) Internal bursts of large forgings for carburized gearing related to hydrogen absorption during melt processing and forging temperature and times related problems.

d) Material processing issues – Non-uniformity in heat treat configuration, improper/poor weld technique, inadequate support during heat treatment resulting in


excessive distortion, excessive lead pot tempering of spiroid gearing and water coolant contamination in heat treating cooling chamber tubing.

e) Have been involved in the failure analysis of gear materials, testing and qualification for several vehicular systems for the handicapped.

f) Various types of corrosion problems– atmospheric, galvanic, stress corrosion cracking, crevice corrosion, etc. For example, the galvanic corrosion failure of a kerosene heater, crevice corrosion of a large water cooled rolling mill mandrel, atmospheric corrosion of stainless steel cages used for medical test applications, and a galvanic corrosion problems caused by improper plating techniques on electrical relay switches.

With regard to several of the above items, Expert Witness and/or Depositions were given. 2) Written and/or approved various types of Materials and Process Specifications:

a) Gear Steel Material Specificationsb) Heat treating/Carburizing Specifications – including carburize and

hardening procedures for gear steels.c) Heat treat process for induction hardened gears.d) Nitride Process for hardening of industrial gearing.e) Nital Etch Inspection – Grinding Burn processf) Ultrasonic Inspection of raw materialsg) Magnetic Particle Inspection of Gearing Components

3) Reviewed and approved various manufacturing processes, engineering drawings and heat treat procedures/techniques.


PUBLICATIONS LIST






1) “Parameters of Aerospace Gear Heat Treating” – published in Heat Treating Magazine 11(7) and 11(8), 1979.

This paper also presented at the American Society for Metals Heat Treating Conference in Chicago, Illinois, on October 10, 1978.

2) “Metallurgical Requirements and Qualification Testing of an Advanced Gear Material” – Presentation given to AGMA Aerospace Gearing Committee Meeting in Atlanta, Ga., May 1976.

3) “Recent Helicopter Advancements in Materials Research at Boeing Vertol” – Presentation given at the AGMA Aerospace Gearing Committee Meeting in Orlando, Fl., March 1980.

4) “Optimizing Fatigue Properties of a Cast Precipitation Hardening Steel” , Co-Author with Ray Nagan, Arwood Corp., published in Metals Progress, March 1981.

5) “Standard Practice for Carburized Aerospace Gearing” – Specification written for the American Gear Manufacturers Association – Specification No. 246.01.

6) “Material Evaluation, Test Results and Final Report – Vasco X2, 0.15% Carbon (BMS 7-223) Steel HLH/ATC Transmission”, 173pp. June 1974. B/V Proprietary Report – Document No. 301 – 12-10036-2).

7) “Toughness Evaluation of BMS 7-223 Steel” , 32pp. October 1979, B/V Document No. D210-12033-1.

8) “Threshold Stress Level Evaluation of Vasco X2 Steel” , (BMS 7-223) and AISI 9310 (BMS 7-249), IR&D 1978 Final Report, 49pp. April 1979, B/V Document No. D210-12034-1.

9) “Fatigue Life Improvement of 15-5Ph Stainless Investment Cast Material” – IR&D 1978 Final Report, 26pp. August 1979, B/V Document No. D210-12035-1.

10) “Salt Water Corrosion Failure of a 4340M Steel Component” – Paper written and presented at the Metallography in Failure Analysis Conference in Ft. Lauderdale, Florida in May 1983.

11) “Qualification of High Temperature Vacuum Carburizing for an Aircraft Gear Steel” – Presented at 1st International SAMPE Metals Conference, August 1987.

12) “Qualification of High Temperature Vacuum Carburizing for an Aircraft Gear Steel”, Published in ‘Competitive Advances in Metals and Processes, pp. 301 – 308, 1987.



13) “Process Developments in Advanced Gear Materials” – Presented at 1st International SAMPE Metals Conference, August 1987.

14) “Process Developments in Advanced Gear Materials” – Published in competitive Advances in Metals & Processes, pp 320 – 327, 1987.

15) “Competitive Advances in Metals and Processes” , Edited by R. Cunningham – Published in Society for the Advancement of Material and Process Engineering, 356 pp, 1987.

16) American Gear Manufacturers Association Specification – AGMA 240.02, “Practice for Carburized Aerospace Gearing” – I was a principal contributor to this specification.

17) American Gear Manufacturers Association Specification – AGMA 230.01 “Surface Temper Inspection after Grinding” – I was a principal contributor to this specification.

18) “Gear Materials” – ‘Chapter Written in Darle Dudley’s Gear Handbook’, 2nd Edition, Published by McGraw-Hill, 1992, 41 pp

19) The Application of Very Large, Weld Fabricated, Carburized, Hardened & Hard Finished Advanced Technology Gears In Steel Mill Gear Drives” May 2006, by Raymond J. Drago, Roy Cunningham, & Steve Cymbala: Association of Iron & Steel Technology AISTech Technical Meeting, Cleveland, OH, 18 pages.

20) Hydrogen & Internal Residual Stress Gear Failures – Some Failure Analyses and Case Studies – Raymond J. Drago and Roy J. Cunningham, Drive Systems Technology, Inc. - 9 pp. Paper given at AGMA Yearly Meeting, 2008.

21) The Anatomy of a Micropitting Induced Tooth Fracture Failure - Causation, Initiation, Progression and Prevention - Raymond J. Drago and Roy J. Cunningham, & Steve Cymbala, Drive Systems Technology, Inc. 9 pp, Paper given at AGMA Yearly Meeting, 2009.

22) The Anatomy Of A Lubrication Erosion Failure - Causation, Initiation, Progression And Prevention September 2013 – AGMA Fall Technical Meeting Paper 13FTM16, By Raymond J. Drago and Roy J. Cunningham, Drive Systems Technology, Inc., and William Flynn, Chalmers & Kubeck.

SOCITY MEMBERSHIPSASM - American Society for Metals – Past MemberAGMA - Aerospace Gearing Committee, Subcommittee Chairman of Aerospace MaterialsAGMA - Metallurgy and Materials Committee – MemberSAMPE - General Chairman of the SAMPE International Metals Conference held August

1978 at Valley Forge, Pa.

PATENTA Unique Method for Carburizing High Alloy Steel – U.S. Patent No. 3885995, issued May, 1975.


SEMINAR LIST






Gear Materials - Selection, Metallurgy, Heat Treatment, and Quality Control (24 Hours)

2. American Gear Manufacturers Association, Concordville, PA, January 20083. American Gear Manufacturers Association, Concordville, PA, January 20094. American Gear Manufacturers Association, Clearwater Beach, FL, February 20115. Arrow Gear Company, On-Site, Downers Grove, IL March 20116. Arrow Gear Company, On-Site, Downers Grove, IL September 20117. American Gear Manufacturers Association, Milwaukee, WI, May 20128. American Axle and Machine, Detroit, MI July 20129. American Gear Manufacturers Association, Clearwater Beach, FL, February 201310. American Gear Manufacturers Association, Clearwater Beach, FL, February 201411. American Gear Manufacturers Association, Clearwater Beach, FL, February 201412. American Gear Manufacturers Association, Clearwater Beach, FL, February 2015



Steve CymbalaSenior Drives Engineer


RESUME'

Steve Cymbala, Senior Drives EngineerDrive Systems Technology, Inc.




Steve Cymbala was a 34-year employee of the Boeing Company where he held a position of Staff Engineer with the CH-46 Drive Systems Group at the Philadelphia Integrated Defense & Space Group when he retired in 2003.He graduated from The Spring Garden Technical Institute of Technology in 1966 with an Associate Degree in Mechanical Engineering. He also attended Widener University Bachelor of Mechanical Engineering program during 1973-1976 school year.He joined The Boeing Vertol Division in 1966 Mechanical Engineering Technician in the Model CH-46 Equipment Group where he supported design efforts of the various equipment projects, most notably the Rescue Hoist personnel retrieval thru the floor hatch as well as thru the rear door. In 1968 he transferred to the CH-46 Drive Systems Group where he supported design and sustaining engineering efforts of the CH-46 helicopter transmissions and shafting until his departure from the Boeing Company in 1970.In 1970 Steve accepted a Design Engineer position with General Technical Services located in Upper Darby, PA. While there he was responsible for all mechanical aspects of a space lab bound Biological Experiment “Arabidopsis” project sponsored by the University of Pennsylvania. This project involved designing and overseeing construction of a self-contained unit that would house a total of twelve (12) Arabidopsis plant seeds in their own individual environment. The seeds were contained in leak proof “test tubes”. The germination of all plants was started simultaneously and allowed to grow under “Grow Lux” lamps. The life span of the plant is approximately 24 hours from germination to extinction. During the experiment, the “life” of each plant would be terminated and fixed in time during different stages of the plants life, so that affects of weightlessness could be studied once the project returned to earth. The program required that each plant be photographed from the front and from the side every 10 minutes for the duration of the experiment which was to last approximately 24 hours. The unit also contained all necessary electronics and temperature control system.In 1973 Steve returned to the Boeing Company where he remained until his retirement. He resumed his position in the CH-46 Drive Systems Group and was fully engaged in the U.S. Navy Service Life Extension Program (SLEP). This program involved design and fabrication of new Accessory Gear Box (AGB) and Improved Engine Drive Shafting which supported a new torque meter system. Steve was intimately involved in the design, detail drawing creation, manufacturing and bench testing of these new components as well as client program reviews.Throughout the subsequent years, Steve was involved in many important projects such as UTTAS Program drive system, Model 360 Program drive system, CH-47C Program drive system, Model 234 Program drive system, CH-47D Modernization Program drive system,


Osprey wing stow mechanism, RAH Program drive system, F-22 Fighter Airframe Mounted Accessory Drive (AMAD) and finally CH-46 DCU Program.Steve has vast experience in the field of system and component design and detail dimensioning using the GD&T methods. He has employed various CAD systems such as CADAM, CATIA and CAD-PACK and some AUTOCAD. In his earlier career days he use to create the drawings the old fashion way...by hand, on Velum or Mylar film using a pencil...what a novel way. As Staff Engineer, Steve directly interfaced with part suppliers by providing resolutions to problems and overseeing manufacturing progress.

Steve attended many transmission design related courses sponsored by Boeing, some of which are listed below:

A. STATICS AND DYNAMICS FOR ENGINEERING TECHNICIANS (20 Hours)1. Boeing Vertol Company, Philadelphia, PA 1975

B. BASIC GEAR AND SPLINE DESIGN (32 Hours)2. Boeing Vertol Company, Philadelphia, PA 1980

C. Fundamentals of Gear Design (24 Hours)3.Boeing Vertol Company, Philadelphia, PA, October 19834.Boeing Vertol Company, Philadelphia, PA January 19865.Boeing Defense & Space Group, Helicopters Div., Philadelphia, PA, October 1994

D. DRIVE SYSTEM DESIGN (12 Hours)6. The Boeing Training Center, Philadelphia, PA, June 1984

E. Fundamentals of Gear Design Expanded (3 day sessions)7.The Boeing Company, Philadelphia, PA PART I (modified format), June 20008.The Boeing Company, Philadelphia, PA PART II (modified format), June 2000

In addition to his responsibilities at Boeing, Steve has served as a Senior Drives Engineer for the Drive Systems Technology, Inc. since 1973.In this capacity, Steve performs gearbox design functions as well as client’s drawing reviews prior to placement of orders. He also performs field gearbox failure investigations. Steve also travels to gear manufacturer facilities to witness various Non Destructive Examination inspections on behalf of DST Inc. clients.

In addition, Steve reviewed and provided editorial comments for Mr. Drago’s book, “Fundamentals of Gear Design” published by Butterworth Publishers. Steve has co-authored three technical papers which have been presented at the Mill Gearing Technology Symposium, American Gear Manufacturers Association Fall Technical Meeting and Association of Iron & Steel Technology AISTech Technical Meeting.


PUBLICATION LIST





1. ADVANCED TECHNOLOGY GEARS IN STEEL MILL APPLICATIONS ENHANCED THROUGH THE APPLICATION LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED GEAR BLANKSSeptember 2005 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; Mill Gearing Technology Symposium 5, Erie; PA

2. THE APPLICATION OF VERY LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED ADVANCED TECHNOLOGY GEARS IN STEEL MILL GEAR DRIVESOctober 2005 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; American Gear Manufacturers Association Fall Technical Meeting, Detroit, MI, 18 Pages

3. THE APPLICATION OF VERY LARGE, WELD FABRICATED, CARBURIZED, HARDENED & HARD FINISHED ADVANCED TECHNOLOGY GEARS IN STEEL MILL GEAR DRIVESMay 2006 - By Raymond J. Drago, Roy Cunningham, & Steve Cymbala; Association of Iron & Steel Technology AISTech Technical Meeting, Cleveland, OH, 18 Pages


SEMINARS PRESENTED





Gearbox System Design - The Rest of the Story...Everything but theGears and Bearings! - (24 Hours)

1. American Gear Manufacturers Association, Ft. Worth, TX, May 2009

2. American Gear Manufacturers Association, Concordville, PA, April 2010

3. Pacific Rim Engineered Products, Surrey, BC, Canada, July 2010 (Special 36 hour presentation with additional drawing & design review session added)

4. American Gear Manufacturers Association, Clearwater Beach, FL, December 2011

5. American Gear Manufacturers Association, Clearwater Beach, FL, June 2012

6. American Axle and Machine, Detroit, MI September 2012

7. American Gear Manufacturers Association, Baltimore, MD March 2013

8. American Axle and Machine, Detroit, MI May 2013

9. American Gear Manufacturers Association, Clearwater Beach, FL, October 2013

10. American Gear Manufacturers Association, Clearwater Beach, FL, May 2014


Joseph W. Lenski, Jr.Senior Bearing Engineer


RESUME'

Joseph W. Lenski, Jr, Senior Bearing EngineerDrive Systems Technology, Inc.




Joseph W. Lenski, Jr. was a 40-year employee of the Boeing Company and held the position of Technical Fellow, Bearing Technology with the Dynamic Systems Technology group at Philadelphia Rotorcraft division when he retired in 2003. His field of expertise is in the area of rolling element-bearing technology with extensive work in drive system design and lubricant development. He graduated from Drexel University with a Bachelor of Science Degree in Mechanical Engineering in 1963 and a Master's Degree in Mechanical Engineering in 1966. He joined Boeing Vertol Division in 1963 as an associate engineer in the transmission design group and became involved in the design and testing of helicopter transmission components. He later directed his efforts towards the development of computer programming techniques and analysis for all types of rolling element bearings. During these years he worked very closely with well-known bearing consultant, A. B. Jones, in the development of an extensive library of computer programs that have been used in the design of all rotorcraft drive systems in Philadelphia since 1968. He has been associated with all phases of bearing design including preliminary bearing sizing, vendor negotiation, testing, with considerable emphasis on research and development, and failure investigations. He still continues to provide bearing technical support to the Boeing Company since he retired.

In addition to his responsibilities at Boeing, Mr. Lenski has provided bearing consultant work for Drive Systems Technology, Inc. since 1973. This work has included bearing analysis, selection and life predictions, bearing failure investigations and discussion of various high technology bearing designs and concepts. This work has been done for various steel mill companies, gearbox manufacturers, oil producing facilities, wind turbines and mining companies. Mr. Lenski has provided detailed reports documenting his work in these various areas.

In addition to his work in bearings, he has been assigned as program manager and project engineer for many government funded research and development programs, as well as the Philadelphia Rotorcraft focal for drive system IR&D and IAD projects. These programs have included work on new material development (M-50 NiL, VASCO-X2, CBS 600, ceramic rolling elements and PEEK cages), new bearing design concepts (out-of-round bearings, hollow and hollow ended rollers), high speed (>20,000 Ft/Min) and bi-directional tapered roller bearings, high speed grease lubricated ball bearings, preliminary evaluation of many advanced transmission components such as composite (graphite and metal matrix) housings, bearings, lubricants, clutches and seals and the Advanced Rotorcraft Transmission I (ART I) and Rotorcraft Drive System 2001 programs. Many of these developments have been successfully used in today's rotorcraft drive systems.



Mr. Lenski has authored more than 50 technical reports, papers and seminars that have been presented at many national and international conferences of AHS, AIAA, ASME, SAE, AGMA and AGARD. A list of many of these technical reports and papers are attached. He has prepared extensive notes and a class manual on basic bearing design and analysis and bearing failure analysis, presenting this information at many seminars. These highly technical seminars were taught to more than 550 engineers at Boeing Philadelphia and Seattle and to members of the U.S. Navy and a few foreign military groups and at various AGMA seminars. A listing of these seminars will be provided later. Joe was also the technical custodian of the Boeing Design Standard BDM 1512 titled "Bearings- Power Transmissions".

In addition to his work at Philadelphia Rotorcraft, Joe supported various other Boeing programs such as F-22, AH-64, wind turbine, rail cars, AWACS, jetfoil, space station and many commercial aircraft (767, 777, 747…) programs. He has provided consultation on bearing technology transfer to other Boeing groups, to major aerospace bearing manufacturers (MRC, FAG, Timken, SKF, Kaydon, McGill, SBB and ITB/RBC) and to Boeing team members (Bell Helicopters - V-22 and Sikorsky - RAH-66). In addition to being a life member of ASME for 50 years, Joe was active in, AHS, SAE-E-34 and the ABMA Standards Committee B-3. He was chairman of the SAE Lubricating Characteristics Subcommittee E-34C that is presently developing standards for aircraft propulsion lubricants. Joe was requested by Professor Tedric Harris to be a guest lecturer at Penn State University in the Department of Mechanical Engineering. Joe has also achieved membership in Pi Tau Sigma and Tau Beta Pi, National Honorary Engineering Societies.


PUBLICATION LIST





1. TEST RESULTS REPORT AND TECHNOLOGY DEVELOPMENT REPORT FORHLH/ATC COMPLIANT ROLLER BEARING DEVELOPMENT PROGRAM, November 1972 - J. W. Lenski, Jr., USAAMRDL Technical Report 72-62

2. DESIGN, FABRICATE, TEST, AND EVALUATE SPIRAL BEVEL SUPPORTBEARINGS (TAPERED ROLLER), June 1973 - A. J. Lemanski, J. W. Lenski, Jr., and R. J. Drago, Contract DAAJ02-71-0025, Eustis Directorate, U. S. Army Mobility and Research Development Laboratory, Fort Eustis, VA - USAAMRDL Technical report 73-16

3. AN ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF THE CONTACTCONDITIONS AT THE ROLLER END/CONE RIB OF A TAPERED ROLLER BEARING, November 1973 - R. J. Drago and J. W. Lenski, Jr., AGMA Paper No. 109.32, American Gear Manufacturers Association, 1973 Semi-Annual Meeting, New Orleans, Louisiana

4. TEST RESULTS REPORT AND TECHNOLOGY DEVELOPMENT REPORT-HLH/ATC DRIVE SYSTEM AFT ROTOR SHAFT BEARING TEST, January 1974 - J. W. Lenski, Jr., USAAMRDL Technical Report 73-92

5. HLH/ATC ENGINE SHAFT SUPPORT BEARING DEVELOPMENT, May 1974 - J. W. Lenski, Jr., USAAMRDL Technical Report 74-166. TEST RESULTS REPORT AND DESIGN TECHNOLOGY DEVELOPMENT

PROGRAM HLH/ATC HIGH SPEED TAPERED ROLLER BEARING DEVELOPMENT PROGRAM, June 1974 - J. W. Lenski, Jr., USAAMRDL Report 74-33

7. HELICOPTER TRANSMISSION VIBRATION AND NOISE REDUCTION PROGRAM -VOLUME 1, TECHNICAL REPORT, March 1978 - R. J. Drago, R. W. Howells, J. W. Lenski, Jr., E. G. Schaffer, and J.J. Sciarra, USARTL-TR-78-2A, Applied Technology Laboratory, U. S. Army Research and Technology Laboratories (AVRADCOM), Fort Eustis, VA

8. HELICOPTER TRANSMISSION VIBRATION AND NOISE REDUCTION PROGRAM -VOLUME 2, USER'S MANUAL, March 1978 - R. J. Drago, R. W. Howells, J. W. Lenski, Jr., E. G. Schaffer, and J. J. Sciarra, USARTL-TR-78-2B, Applied Technology Laboratory, U. S. Army Research and Technology Laboratories (AVRADCOM), Fort Eustis, VA

9. HELICOPTER TRANSMISSION VIBRATION AND NOISE REDUCTION PROGRAM - VOLUME 3 - EVALUATION OF METAL-MATRIX HOUSING SPECIMENS, October 1978 - Joseph W. Lenski, Jr., USARTL Report -78-2C

10. STRUCTURAL STIFFENING OF TRANSMISSION HOUSING WITH METALMATRIX MATERIALS, April 1979 - Joseph W. Lenski, Jr., Paper Number 79-0806, 20th AIAA/ASME/ASCE/AHS Structures, Structural Dynamics and Materials Conference, St. Louis, Missouri

11. AN ANALYTICAL APPROACH TO THE SOURCE REDUCTION OF NOISE AND



VIBRATION IN HIGHLY LOADED MECHANICAL POWER TRANSMISSION SYSTEMS, July 1979 - R. J. Drago, J.W. Lenski, Jr., and A. Royal, Fifth World Congress on the Theory of Machines and Mechanisms, Concordia University, Montreal, Canada

12. AN ANALYTICAL APPROACH AND SELECTIVE STIFFENING TECHNIQUE FORTHE SOURCE REDUCTION OF NOISE AND VIBRATION IN HIGHLY LOADED MECHANICAL POWER TRANSMISSION SYSTEMS, September 1979 - R. J. Drago, J. W. Lenski, Jr., and A. C. Royal, Fifth European Rotorcraft and Powered Lift Aircraft Forum, Amsterdam, The Netherlands

13. SELF-CONTAINED GREASE LUBRICATION SYSTEMS FOR AIRCRAFTAPPLICATIONS, May 1979 - Arthur Irwin, Clinton Inglee and Joseph W. Lenski, Jr.- AHS paper No. 79-39 -35th Annual National Forum of the American helicopter Society, Washington, D.C.

14. ADVANCED TRANSMISSION COMPONENTS INVESTIGATION PROGRAM - BEARING AND SEAL DEVELOPMENT, August 1980 - Joseph W. Lenski, Jr., USAAVRADCOM-TR-80-D-19

15. DEVELOPMENT OF A FILAMENT-WOUND GRAPHITE/POLYIMIDE COMPOSITETRANSMISSION HOUSING, January 1981 - Joseph W. Lenski, Jr., John Mack and James Gomez, Fifth DoD/NASA Conference on Fibrous Composites in Structural Design, New Orleans, Louisiana

16. METAL-MATRIX COMPOSITES APPLICABILITY TO HELICOPTER PROPULSIONSYSTEMS AND DRIVE SYSTEM, May 1981- Joseph W. Lenski, Jr., Paper No. 19, Fourth Metal Matrix Composites Technology Conference, Arlington, Virginia

17. METAL-MATRIX COMPOSITES APPLICABILITY TO HELICOPTER PROPULSIONDRIVE SYSTEM, July 1981- Joseph W. Lenski, Jr., Fred Brown and Robert Pinckney, USAAVRADCOM-TR-81-D-34

18. HELICOPTER DRIVE SYSTEMS FOR THE 1980's - DESIGN AND MATERIALINFLUENCE ON WEIGHT AND SERVICE LIFE, October 1981 - Joseph W. Lenski, Jr., SAWE Paper number 202

19. DEVELOPMENT OF METAL-MATRIX HELICOPTER TRANSMISSION CASES,January 1982- Robert L. Pinckney and Joseph W. Lenski, Jr., Sixth Annual Conference on Composites and Advanced Ceramic Materials, Cocoa Beach, Florida

20. APPLICATION OF METAL-MATRIX COMPOSITES TO HELICOPTERTRANSMISSIONS FOR REDUCTION OF NOISE AND VIBRATION, February 1982- Joseph W. Lenski Jr. and Robert L. Pinckney, USAAVRADCOM-TR-81-D-41

21. DEVELOPMENTS IN THE DESIGN, ANALYSIS, AND FABRICATION OFADVANCED TECHNOLOGY TRANSMISSION ELEMENTS, November 1982 - Raymond J. Drago and J. W. Lenski, Jr., AHS Paper No. RWP-12, American Helicopter Society Rotary Wing Propulsion System Specialists Meeting, Williamsburg, VA (17 Pages)

22. DEVELOPMENT OF A GRAPHITE/POLYIMIDE COMPOSITE TRANSMISSIONHOUSING, March 1983- Joseph W. Lenski Jr., National Specialist's Meeting on Composite Structures, American Helicopter Society, Philadelphia, Pennsylvania

23. APPLICATIONS OF METAL MATRIX COMPOSITES TO A CH-47D ENGINETRANSMISSION HOUSING, May 1983- Joseph W. Lenski Jr., Fifth MMC Technology Conference, Naval Surface Weapons Center, Silver Spring, Maryland

24. ADVANCED TRANSMISSION COMPONENTS INVESTIGATION PROGRAM


- COMPOSITE TRANSMISSION HOUSING DEVELOPMENT, August 1983 - Joseph W. Lenski, Jr., USAAVRADCOM-TR-83-D-9

25. ADVANCED TECHNOLOGY TRANSMISSION ELEMENTS, October 1983 - Raymond J. Drago and Joseph W. Lenski, Jr. Journal of the American Helicopter Society, Washington, DC, Volume 28, Number 4, Pages 44 - 53 (10 Pages)

26. SPECIAL POWER TRAIN REQUIREMENTS FOR THE NEXT GENERATION OFROTARY-WING AIRCRAFT, October 1984 - Raymond J. Drago and Joseph W. Lenski, Jr. Advisory Group For Aerospace Research and Development, North Atlantic Treaty Organization (NATO), Neuilly Sur Seine, France: Presented at the 64th Symposium of the Propulsion and Energetics Panel on Gears and Power Systems for Helicopters and Turboprops, Lisbon, Portugal (12 Pages)

27. BASIC BEARING DESIGN AND ANALYSIS COURSE (V9692.3), Seminar TextJoseph W. Lenski, Jr. (1050 Pages), Editions 1984, 1986, 1989, 1994 Library No. 621.822, L573B

28. WRITTEN DISCUSSIONS OF TECHNICAL SOCIETY PAPERS ON THESUBJECT OF HIGH SPEED BALL AND ROLLER BEARING SKIDDING 1965, 1969, 1971, AND 1976, ASME, ASTLE

29. ADVANCED POWER TRAIN TECHNOLOGY CURRENT ACTIVITIES ANDFUTURE NEEDS, June 1985- Joseph W. Lenski, Jr. and Raymond Drago, Presented at the NASA/U.S. Army Rotorcraft Workshop, Lewis Research Center, Cleveland, Ohio

30. APPLICATION OF METAL-MATRIX COMPOSITES TO HELICOPTER FULL-SCALE TRANSMISSION HOUSINGS, December 1987 - Joseph W. Lenski, Jr., USAAVSCOM -TR-87-D-11

31. BOEING DESIGN MANUAL - BEARINGS-POWER TRANSMISSION, August 1990 - Joseph W. Lenski, Jr., BDM-151232. BOEING HELICOPTERS ADVANCED ROTORCRAFT TRANSMISSION (ART)

PROGRAM STATUS, November 1990- Joseph W. Lenski, Jr., Paper No. 2, Rotary Wing Propulsion Specialists' Meeting, American Helicopter Society, Williamsburg, Virginia

33. ADVANCED ROTORCRAFT TRANSMISSION PROGRAM - STATUS REPORT,October 1990 - Raymond Drago and Joseph W. Lenski, Jr., Paper No. 90FTM7, Presented at the 1990 Fall Technical Meeting, American Gear Manufacturers Association, Toronto, Canada

34. ADVANCED ROTORCRAFT TRANSMISSION (ART) PROGRAM – BOEINGHELICOPTER STATUS REPORT, June 1991 - Joseph W. Lenski, Jr. and Mark J. Valco, Presented at the AIAA, SAE, ASME and ASEE 27th Joint Propulsion Conference, Sacrament, California, NASA TM-104474 and AVSCOM TR91-C-032

35. TRANSMISSIONI AVANZATE PER ELICOTTERI, Part I: January 1992 & Part II:February 1992 - Raymond J. Drago & Joseph W. Lenski, Jr., ORGAMI DI TRANSMISSIONE Pages 28-35 (Journal of the Italian Gear Manufacturers Association, In Italian)

36. THE RELATIVE NOISE LEVELS OF PARALLEL AXIS GEAR SETS WITHVARIOUS CONTACT RATIOS AND GEAR TOOTH FORMS, October 1993 - Raymond J. Drago, Joseph W. Lenski, Robert H. Spencer. Mark J. Valco, & Fred B. Oswald, AGMA Fall Technical Meeting, Detroit, MI, American Gear Manufacturers Association, Alexandria, VA (17 Pages)

37. GEAR SOUND LEVELS WITH VARIOUS TOOTH CONTACT RATIONS AND


FORMS, October 1993 - Joseph W. Lenski, Raymond J. Drago, Robert H. Spencer, Mark J. Valco, & Fred B. Oswald, AHS Rotary Wing Propulsion Specialists' Meeting, Williamsburg, VA, American Helicopter Society, Alexandria, VA (15 Pages)

38. COMPARISON OF TRANSMISSION ERROR PREDICTION WITH NOISEMEASUREMENTS FOR SEVERAL SPUR AND HELICAL GEARS, June 1994 - Donald R. Houser, Fred B. Oswald, Mark J. Valco, Raymond J. Drago and Joseph W. Lenski, Jr. AIAA 94-3366, ARL-TR-493 and NASA Technical Memo 106647, 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Indianapolis, Indiana

39. OVERVIEW OF A FIVE-YEAR RESEARCH, DEVELOPMENT, AND TESTPROGRAM (Conference Keynote Address), September 1994 - Raymond J. Drago & Joseph W. Lenski, Jr., International Gearing Conference, University of Newcastle, Newcastle Upon Tyne, England (18 Pages)

40. INFLUENCE OF GEAR DESIGN PARAMETERS ON GEARBOX RADIATEDNOISE, September 1994 - F. W. Oswald, D. P. Townsend, M. J. Valco, Raymond J. Drago, Joseph W. Lenski, Jr., & R. H. Spencer, International Gearing Conference, University of Newcastle, Newcastle Upon Tyne, England (18 Pages)

41. ADVANCED ROTORCRAFT TRANSMISSION PROGRAM (ART), April 1995 –Joseph W. Lenski, Jr., NASA Contractor Report 195461 and Army Research Laboratory Contractor Report ARL-CR-224


SEMINARS PRESENTED





1. DRIVE SYSTEM DESIGN, Presented to the US Navy at the Boeing Training Center, Philadelphia, PA, June 1984

2. BASIC BEARING DESIGN AND ANALYSIS COURSEA. Boeing Rotorcraft, Philadelphia, PA 1997B. Boeing Rotorcraft, Philadelphia, PA 1995C. Boeing Commercial Division, Settle, WA 1991D. Boeing Rotorcraft, Philadelphia, PA 1989E. Boeing Commercial Division, Seattle, WA 1988F. Boeing Rotorcraft, Philadelphia, PA 1986G. Boeing Rotorcraft, Philadelphia, PA 1984

3. ENGINEERING TRAINING – FUNDAMENTAL OF BEARING DESIGN - DRIVE SYSTEM DESIGN, Presented to the Singapore Army and Air Force (MINOS) personnel at the Boeing Training Center, Philadelphia, PA, June 1999

4. MATERIALS ENGINEERING: METALS AND METALS PROCESSING, BEARING FAILURES CASE STUDIES, Boeing Rotorcraft, Philadelphia, PA, 2002

5. FAILURE ANALYSIS BEARINGS COURSE – MODES- CAUSES- CURES, October 2003 – Joseph W. Lenski, Jr., Presented at the Boeing Company, Philadelphia Rotorcraft, Philadelphia, PA

6. BASIC BEARING DESIGN AND ANALYSIS COURSE –Triumph Gears Systems, Park City, UT, MARCH 2005

7. BASIC BEARING FOR THE INSPECTOR – COURSE NUMBER 9PBF060437, Boeing Rotorcraft, Philadelphia, PA, 2007

8. GEARBOX CSI: FORENSIC ANALYSIS OF GEAR AND BEARING FAILURES – USEFUL TOOLS OF OPTIMIZING GEARBOX DESIGN, Presented by AGMA and AGMA Foundation,A. American Gear Manufacturers Association, Orlando, FL, February, 2007B. American Gear Manufacturers Association, Clearwater, FL, November, 2007C. American Gear Manufacturers Association, Clearwater, FL, November, 2008D. American Gear Manufacturers Association, Concordville, PA, October, 2009 E. American Gear Manufacturers Association, Clearwater, FL, December, 2010F. American Gear Manufacturers Association, Concordville, PA, January, 2012G. American Axle and Machine Company, Detroit, MI, July 2012H. American Gear Manufacturers Association, Philadelphia, PA March 2014I. American Gear Manufacturers Association, Concordville, PA, March 2015



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