*DO NOW LESSON # 1. Identify 3 major aerospace manufacturing companies. 2. Explain how a person such as your self can own part of an airline company.

*.Focus Point: How are Aircraft Classified?Instructional Objectives: (SWBAT):1) Explain the 2 primary classes of aircraft.2) Discuss types of heavier than air aircraft.3) Identify 2 types of fixed wing aircraft. Lesson # 2 *

*I) What are the two primary classes of aircrafts: 1) Lighter-than air:

2) Heavier- than air:

*1) Lighter-than air: Hydrogen was used (flammable gas).

Uses gas to keep it aloft

Eventually slighter heavier helium (non flammable) was used

*II) Lighter-than air: 1) Non-rigid: free balloon or hot air balloon, has no internal or external framework. Has no steering mechanism.

2) Rigid: blimp, gas is contained in a fabric covered wooden or metal frame work. A gondola (control car) is underneath which carries engines and personnel.

*Note: The Hindenburg was a German Zeppelin, after a successful passenger flight began across the Atlantic caught fire while landing in New jersey in May 1937, killing 36 people and injuring many.

*2) Heavier-than air: All other types.

*III) Heavier-than air:1) Rotary wing:Lift is generated by moving blades overhead which act as revolving wings A) Autogiro: non powered air driven blades. Forward flight is accomplished by use of a conventional engine and propeller. Forward motion caused free wheeling rotating blade.

*Powered by rotating blades.

blades may be tilted in any direction to control flight path. B) Helicopter:

*2) Fixed wing:A) Seaplanes: (flying boats) uses floats or hulls in place of conventional landing gear to take off and land on water . B) Landplanes: classified by location of wing, landing gear type etc

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*C) Amphibians: can operate either on land or on water.

*.Focus Point: How are Aircraft Classified?SUMMARY (ACCOUNTABLE TALK):1) What are the 2 primary classes of aircraft?2) What are the 2 types of heavier than air aircraft?3) What are the 3 types of fixed wing aircraft?Lesson # 2*

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