Saint Andrews “Orion Project II” 2008 Student Launch Initiative

Our Rocket will dominate the skies over Huntsville; while our Payload hunts for valuable data to gather for our experiments.

Flight Readiness Review: March 24, 2008

Robotic Deployment & Recovery-Search & Locate Mother ShipSurface Sample Analysis-Pitot-Tube Air Speed Factors

Contact: LT. Leonard Johnson- Project Team LeaderPH: (847) 698-0018

E-mail: firebrick720@yahoo.com

Video Study of Vehicle Stability Flight ProfilePitot Readings for Velocity and Air Speed

1st test flight, 5216’, 3/9/08!

Rocket Flight StabilityRocket Flight Stability

• Via Rocksim, the new data has been uploaded and tested.

• Rocksim simulations have been run, verifying our rocket’s flight worthiness.

• Test flight on 3/9/08 positively confirmed stability.

CG-CPCG-CP

Rail Exit VelocityRail Exit Velocity

• Rocksim analysis, 6” Diam, 40 lbs loaded with L1300, 10’ rail:

• Rail Departure Velocity=35 ft/sec

• Minimum velocity for Stable flight=46ft/sec

Rocket Specifications and Performance• Total length of vehicle……………………………10ft, 9in• Diameter of vehicle airframe…………………….6in• Liftoff Mass fully loaded………………………….45lbs, 10oz.• Vehicle stability: positive two caliber (airframe diameter) Separation

between CG and CP (center of gravity and center of pressure)• Thrust to weight ratio……………………………..6.48 : 1• Liftoff velocity off launch rail……………………..35 ft/sec• Maximum velocity during flight…………………..700ft/sec• Time to Apogee (peak altitude)………………….20.5 sec• Drogue chute descent

Velocity…………………………………………….76ft/sec• Main parachute deployment at: ………………...800ft AGL (above

ground level)• Descent velocity rate on main chute…………...19.8ft/sec• G-Forces experienced by rocket and payloads...5.86G’s• Maximum Altitude achieved at apogee………….5,216ft AGL• NASA required an apogee of…………………….5,280ft AGLPitot Cruiser RDV was 64ft off the NASA required target altitude.

Motor specifications and performance• Motor used: L1300 APCP—R• L = Total Impulse in Newton-seconds• 1300 = Average Thrust in Newtons• 4.45 Newtons = 1 pound of thrust• Our motor has an average thrust of 292 pounds• APCP = Ammonium perchlorate composite propellant – same fuel and

oxidizer used on the Space Shuttle Solid Rocket Boosters (SRB’s)• R = Reloadable motor (motor case can be reused again)• Manufacturer: Aerotech• Propellant mass: 2,632g = 5.8lbs• Total Impulse rating: 4,567 Newton-seconds• Total Impulse is proportional to the total energy released by the propellant in

a propulsion system• Motor dimensions: 98mm diameter x 443mm length (3.9in diameter x 17.4in

length• Burn time: 3.5 seconds• Burn time is calculated by dividing the Total Impulse by the average thrust

ratings: L=5120 Newton-seconds• Thrust to weight ratio: 50 : 1

Parachute Sizes and Descent RateParachute Sizes and Descent Rate

• Five parachutes:• 1- 36” drogue chute

78.3ft./sec. descent rate• 1- 45” nose cone chute• 19.8ft./sec. descent rate• 1- 45” capsule chute• 19.8ft./sec. descent rate• 1- 120” main chute• 20.8ft./sec. descent rate• 1- 12” safety chute for

Mission Cdr. Gumby;• 28.6ft./sec. descent rate

Rocket Hunter frequency is 219.719 MHz

Test Plans and Procedures

• Robot: Pilots practicing control via radio/video link

• Pitot tube: 220MPH leafblower test done

• BP ejection test done• CO2 ejection test done• Flight video: successful

integration into nosecone!• 1st test flight successful!

Scale Model Flight TestScale Model Flight Test

• ½ Scale model flew successfully, with Video!

• 1st Pitotcruiser RDV flight: 3/9/08

• Internal video camera running during flight.

Dual Deployment of Avionics TestDual Deployment of Avionics Test

• Dual Avionics Payload• Aft: Black Powder 3g• Fore: Carbon Dioxide (for

low temperature, noncorrosive gasses on robot. 38g x 2)

• Dual, redundant altimeters for maximum flight safety.

• Worked perfect, 3/9/08!

Ejection Charge Amount Test-CO2Ejection Charge Amount Test-CO2

• Forward Section Ejection, 38 gram cartridges, x2

• Components of CO2-Rouse-Tech, has been test fired twice.

• Successfully ejected main at 800’ on 3/9/08!!!

Ejection Charge Amount Test-BP

• Aft Section Black Powder Ejection Charge section.

• Successfully (static) tested 2/08.

• Successfully ejected at apogee, 5216’, on 3/9/08!!!

Nosecone Pitot/Video payloadNosecone Pitot/Video payload

• Circuit integrated fully into nosecone

• ½” Plywood Flange epoxied & screwed in nosecone

• 5 bolts hold bulkhead to flange

• Offset center for ease of reaching switches

• Camera below pitot electronics.

Nosecone Pitot circuitNosecone Pitot circuit

• Same circuit as last year

• Tube to Hose to Sensor to Data Logger

• Data downloaded to Laptop PC, Excel

• Calibration via 220MPH blower

MPH Data from 6" Nose vs. Leafblower 1/1/08

-50

0

50

100

150

200

250

1 101 201 301 401 501 601 701 801 901

Time, spls at 0.5sec each

MP

H

Mission CommanderMission Commander

• Team Orion is honored to have a passenger!

• Gumby’s safety is mission critical

• Will have backpack parachute for safety

• Moved to shock cord just forward of main chute.

• A “stunt-double” Gumby flew and was recovered unharmed on 3/9/08!

Altimeter Payload Bay

• All fiberglass for maximum strength

• Double-thickness bulkplates

• 2 x ¼” threaded rods hold it together

• Two redundant altimeters (Missile Works and Ozark)

Altimeter Bay Main Deployment

• Black powder for aft deployment, redundant, cartridges bolt to aft bulk plate

• CO2 for foreward deployment, redundant, Rouse Tech., bolted to fore bulk plate

• Pyrodex combustion forces piston pin into CO2 cartridge

SRV-1Robot- “Scorpio” CapsuleSRV-1Robot- “Scorpio” Capsule

• First basic design of capsule

• First modified design of Capsule

• Final design of Capsule in airframe

• Successfully ejected from airframe by CO2 2/08.

• Prototype successfully ejected at 800’ on 3/9/08

Payload AssemblyPayload Assembly

• All components of the capsule

• Robot’s G force frame support

Payload Integration ReadinessPayload Integration Readiness

• Capsule locked inside airframe

• Operation of the door

Conclusion:Conclusion:Orion has 1 successful flight completed, 5216’, on 3/9/08.

Orion is ready for Huntsville!