NASA SLI 2010

1. Mulberry Grove High School Critical Design Review Measurement of UVB Radiation Absorption by Cloth Material at Different Altitudes and Measurement of Vehicle Motor Tube/Case Temperatures During Launch Mulberry Grove SLI Team NASA SLI 2010

2. Mulberry Grove High School Outline • Rocket Construction and Design • Payload • Recovery • Safety • Outreach NASA SLI 2010

3. Mulberry Grove High School Rocket Dimensions, Material Diameter: 4 inches Length: 109.5 inches Gross Liftoff Weight: 23 lbs Material: G10 Fiberglass Mad Dog Dual Deployment Kit NASA SLI 2010

4. Mulberry Grove High School NASA SLI 2010

5. Mulberry Grove High School NASA SLI 2010

6. Mulberry Grove High School Nose Cone NASA SLI 2010

7. Mulberry Grove High School Coupler in Nose Cone NASA SLI 2010

8. Mulberry Grove High School Epoxy of Nuts on Airframe NASA SLI 2010

9. Mulberry Grove High School NASA SLI 2010

10. Mulberry Grove High School NASA SLI 2010

11. Mulberry Grove High School Avionics Bay NASA SLI 2010

12. Mulberry Grove High School Endcap NASA SLI 2010

13. Mulberry Grove High School NASA SLI 2010

14. Mulberry Grove High School NASA SLI 2010

15. Mulberry Grove High School Fin Can NASA SLI 2010

16. Mulberry Grove High School Completed Booster Section NASA SLI 2010

17. Mulberry Grove High School Fin Joints NASA SLI 2010

18. Mulberry Grove High School Aero Pack Retainer NASA SLI 2010

19. Mulberry Grove High School Stability Analysis • Center of Pressure (from nose) 88 inches • Center of Gravity (from nose) 68.5 inches • Stability Margin 4.8 • Thrust-to-Weight Ratio 6.8 to 1 • Rail Exit Velocity 68 ft/sec NASA SLI 2010

20. Mulberry Grove High School Motor Selection • Engine selected • AeroTech • K700W • Diameter- 54 mm • Length- 56.8 cm • Burn time- 3.5 sec • Total impulse - 2261Ns NASA SLI 2010

21. Mulberry Grove High School Scale Flight When: December 29, 2009 Altitude: 2157 feet NASA SLI 2010

22. Mulberry Grove High School Scale Flight Graph NASA SLI 2010

23. Mulberry Grove High School Scale Flight Data NASA SLI 2010

24. Mulberry Grove High School PAYLOAD NASA SLI 2010

25. Mulberry Grove High School Payload Design • Two Experiments • Temperature of Motor Tube and Motor Casing • Measurement of Absorption of UVB Radiation of Cloth NASA SLI 2010

26. Mulberry Grove High School Payload NASA SLI 2010

27. Mulberry Grove High School Payload NASA SLI 2010

28. Mulberry Grove High School Temperature Experiment Purpose To measure temperature along the motor tube and motor casing during launch. Temperature data will help determine which epoxy should be used. NASA SLI 2010

29. Mulberry Grove High School Temperature Hypothesis Our hypothesis is that the temperature along the motor casing and motor tube will be around 200 degrees F. NASA SLI 2010

30. Mulberry Grove High School Temperature Experiment Equipment • 4 SA1- RTD heat sensors • Placement • Sensor- 3 reading/ 1 second • Data logger -1 reading/ 3 seconds NASA SLI 2010

31. Mulberry Grove High School Thermocouple Sensors Four thermocouple sensors will be embedded into the epoxy glue joint along the fin-to-motor tube connection; one will be embedded as close to the JB Weld adhesive on the retainer. Temperature readings will be recorded during the flight to measure the heating on the motor tube epoxy. NASA SLI 2010

32. Mulberry Grove High School Sensor Location NASA SLI 2010

33. Mulberry Grove High School Non-reversible 3 dot labels Labels will be placed between the rocket casing and motor tube. Temperature sensitive material will turn the dots a different color when the temperature is reached. Testing was started during a November flight with a K700W motor to find the temperature range of sensors that we need. NASA SLI 2010

34. Mulberry Grove High School UVB Experiment Purpose To measure the absorption of UVB radiation by different cloth material at different altitudes. NASA SLI 2010

35. Mulberry Grove High School Hypothesis of UVB Experiment Our hypothesis is that the change in UV radiation will increase with altitude at a rate of 3-4 percent per 1000 feet. Also, the cloth will block the UV radiation with the white cotton blocking more than the denim because the white material will tend to reflect some of the radiation. NASA SLI 2010

36. Mulberry Grove High School Measurement of Absorption of UVB Radiation of Cloth Equipment Texas Instrument CBL2 Three UVB sensors Cloth material NASA SLI 2010

37. Mulberry Grove High School UVB Experiment Three sensors will be used; one control, the other two to take readings through the material. Sensors will point straight upward at the end of the payload bay and will be exposed to the atmosphere when the drogue chute is deployed. Data will be recorded and analyzed to measure the amount of UVB radiation that is absorbed by the cloth. NASA SLI 2010

38. Mulberry Grove High School Plan for Payload Safety, Verification, and Testing The sensors will be tested in the laboratory and outside to plot the readings of the two sensors compared to the control. The experiments will be flown on a test flight in February to make sure the experiment works properly. Loggers will be tested to determine life of batteries and length of time it will record data. Software will confirm data can be recovered from experiment. NASA SLI 2010

39. Mulberry Grove High School Recovery System Design • Dual Deployment • Dual system of altimeters with black powder charges • Electronic tracker NASA SLI 2010

40. Mulberry Grove High School Altimeters • Primary • Ozark Aerospace Arts II • Drogue setting: apogee • Main setting: 600 feet • Secondary • PerfectFlite MAWD • Drogue setting: apogee plus 1 second • Main setting: 500 feet NASA SLI 2010

41. Mulberry Grove High School Parachutes Drogue Chute 24 inch SkyAngle Velocity of Descent: 0 ft/sec Main Chute 6 feet SkyAngle Velocity of Descent: 33 ft/sec NASA SLI 2010

42. Mulberry Grove High School Tracking • The receiver is a 10-channel unit manufactured by F & L Electronics with analog tuning to within 10 hertz. • HAM radio license is not required. • Tested on December 29, 2009 scale launch. NASA SLI 2010

43. Mulberry Grove High School RecoveryVerificationand Testing Testing Altimeter bell jar test Black powder charge test on vehicle Shear pin test Electric matches testing NASA SLI 2010

44. Mulberry Grove High School Black Powder Test NASA SLI 2010

45. Mulberry Grove High School Safety • We followed all MSDS safety regulations and standard shop regulations. • Proper safety equipment was used, including: • Safety glasses • Rubber gloves • Dust masks • Proper ventilation • Ear plugs NASA SLI 2010

46. Mulberry Grove High School Safety • Key materials used that may be dangerous: • Epoxy (5:1 by weight resin to hardener ratio) • Epoxy (1:1 by volume resin to hardener ratio) • Fiberglass • Rubbing Alcohol • Super glue • JB Weld NASA SLI 2010

47. Mulberry Grove High School Outreach Goals • Main points: • Reach out to younger students about rocketry • Teach them about the safety involved • Introduce them into a new hobby • Develop their interest in science and math NASA SLI 2010

48. Mulberry Grove High School Educational Outreach Program • 1st Grade Project (about 40 students) • Read book Astronaut Handbook • Draw • Make and shoot bottle rockets • 6th Grade Project (about 30 students) • Read the book The Rocket Boys • Discussion of book • Watch the movie October Sky • Compare and contrast the book and movie • 4th-6th Grade Project at Beckemeyer Elementary • Help with construction of rockets for about 100 students • Sponsor a rocket launch on the weekend to fly their rockets NASA SLI 2010

49. Mulberry Grove High School A view into the Outreach Program 1st Grade Project (about 40 students) Read book Astronaut Handbook Draw Make and shoot alka-seltzer rockets NASA SLI 2010

50. Outreach Program Cont. 6th Grade Project (about 30 students) Read the book The Rocket Boys Discussion of book Watch the movie October Sky Compare and contrast the book and movie Mulberry Grove High School NASA SLI 2010