STUDENT LAUNCH INITIATIVE 2010 – 2011 AIAA OC SECTION CDR PRESENTATION February 7, 2011 \

1. Student Launch Initiative AIAA OC Section STUDENT LAUNCH INITIATIVE2010 – 2011AIAA OC SECTIONCDR PRESENTATIONFebruary 7, 2011\

2. Student Launch Initiative AIAA OC Section Agenda • Introduction of team members (representing 5 high schools in Orange County California) • Changes Since Original Posting • Finalized Vehicle – Black Brant • Parachutes, Motor, RockSim Simulations, Parachute and Descent Rates, Dual Deployment, Payload, GPS • Test Plans and Procedures • Scale Model – 2.6” Black Brant • Flights, and Flight Analysis • Testing • Black Powder, Battery Life, GPS Range • Website • Educational Engagement • Questions

3. Student Launch Initiative AIAA OC Section Changes Since Original Posting Added slide 3 Modified slide 4 Modified slide 5 Split slide 5 Modified slide 6 Modified slide 8 Added slide 9 Modified slide 15 Modified Slide 16 Modified slide 17 Added slide 21 Modified slide 22 Modified slide 23 Modified slide 24 Added photos to several slides

4. Student Launch Initiative AIAA OC Section Final Vehicle – Black Brant

5. Student Launch Initiative AIAA OC Section Drogue Parachute

6. Student Launch Initiative AIAA OC Section Main Parachute

7. Student Launch Initiative AIAA OC Section Cesaroni K635 Redline

8. Student Launch Initiative AIAA OC Section Motor Selection

9. Student Launch Initiative AIAA OC Section RockSim Simulation Results

10. Student Launch Initiative AIAA OC Section Parachute and Descent Rates • Rocket mass = 247.09 oz (Descent Mass) • Drogue chute diameter = 24 in. • Main chute diameter = 72 in. • Calculated projected velocity for each chute with online calculator and by hand (http://www.rocketreviews.com/tool_descent_rate.shtml) • FD = ½(ρ)(Cd)(A)(v2) • Cd = 1.00 • FD = mg = (7.00 kg)(9.8 m/s2) • ρair = 1.22kg/m3 • Hand: vdrogue= 65.43 ft/s Online: vdrogue = 63.51 ft/s • Hand: vmain= 20.49 ft/s Online: vmain= 20.09 ft/s

11. Student Launch Initiative AIAA OC Section Dual Deployment • Electronics: MAWD Perfect Flight, HCX G-Wiz Partners • The electronics will “back” one another up incase one pyro (either drogue or main) does not fire. • Drogue Parachute will be deployed at apogee • Main Parachute will be deployed at 900ft • The electronics have been tested four tests have been done: • Christmas tree light test • Vacuum Chamber test • First flight in the scale rocket (MAWD Only) • Second Flight in scale model (MAWD Only)

12. Student Launch Initiative AIAA OC Section Dual Deployment Tests Christmas Tree Light: Vacuum Chamber: First Launch

13. Student Launch Initiative AIAA OC Section Payload • G-Wiz Partners HCX flight computer - measures acceleration of the rocket • Toshiba hard drive – test subject; we will run a Linux script on the hard drive over and over again; the time the hard drive takes to run the script each time is measured • Simple net computer/Linux computer – the mini computer that will execute the Linux script on the hard drive; it will be initialized by a PC; the flight data will be recorded on a flash drive inserted into this computer • Power converter – Keeps a steady flow of power to the payload components

14. Student Launch Initiative AIAA OC Section GPS TRACKING • Transmitter in Vehicle • Big Red Bee Beeline GPS • RF: 17mW on 433.920 MHz • Battery and life: 750mAh 10 Hrs • Size: 1.25” x 3” 2 ounces • Ground Station • Receiver: Yaesu VX-6R • TNC: Byonics Tiny Track 4 • GPS: GarmineTrex Vista • Beeline receives GPS position • Encodes as AX.25 packet data • Sends as 1200 baud audio on 433.92 MHz • VX-6R receives at 433.92 MHz and extracts audio • TinyTrack 4 converts audio to digital NMEA location data • Garmin displays the digital location data on human screen

15. Student Launch Initiative AIAA OC Section Test Plans and Procedures February 12 launch Scale model (Note: 1st launch was January 1) Test dual Deployment (MAWD and HCX) Ejection charges Full Scale model Test with modified ejection charge amount Launch Full Scale Model March 5 and/ or March 12

16. Student Launch Initiative AIAA OC Section Scale Model – Black Brant

17. Student Launch Initiative AIAA OC Section Scale Model – Black Brant

18. Student Launch Initiative AIAA OC Section Scale Model Test Flights Click here for video on aiaaocrocketry.org

19. Student Launch Initiative AIAA OC Section Scale Flight Analysis • First flight to 1938 ft was very acceptable and proved design was stable • Second flight to 1749 ft began well, but: • Showed a problem with wobble as it approached apogee • Deployed both drogue and main together

20. Student Launch Initiative AIAA OC Section Testing • Testing that has been done includes: • Black Powder • Battery Life • GPS Range • Scale Model Launch All the testing we have done is to help insure that our rocket is safe

21. Student Launch Initiative AIAA OC Section Testing – Black Powder The table below shows the testing our team has done with black powder charges. How we did the testing was by assembling the rocket as we normally would but through the pressure hole we put a wire to a battery to fire charges

22. Student Launch Initiative AIAA OC Section Testing – Battery Life Each device tested began with a new or just charged battery and ran under conditions close to sitting on the pad. Results were measured using a DATAQ Instruments DI-194RS four channel analog to digital converter

23. Student Launch Initiative AIAA OC Section Testing – GPS Range Our team first let the electronics connect to satellites, once it had done that then we started to walk away from the transmitter (Big Red Bee Beeline) and saw how far it would transmit while being in the rocket.

24. Student Launch Initiative AIAA OC Section Website • aiaaocrocketry.org • Contains a separate tab: SLI 2010-2011 • Documents • Calenders • MSDS • SLI Photos/Videos • Manuals • Allows for the team members to stay updated

25. Student Launch Initiative AIAA OC Section Educational Outreach Cloverdale 4-H club Girl Scouts workshop Presentations to Sunny Hills HighSchool Science classes to get involved Help out ABC Unified School Districtwith their annual Science Olympics Articles published/ will be publishedin the Orange County Register,The Foothill Sentry, and the Sunny Hills High School Accolade We have contacted the Discovery Center to participate in their Youth Booth We are going to have a booth at Youth Expo (4/8 – 4/10) and teach kids how to build rockets while informing them on SLI and other cool aerospace careers – approximately 2,600 students will be dropping by In the process of contacting corporations regarding fundraising

26. Student Launch Initiative AIAA OC Section Thank you for letting us be part of SLI Questions & Comments?