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  1. Mulberry Grove High School Preliminary 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 • Team Members • Rocket Construction and Design • Payload • Recovery • Safety • Outreach • Budget and Fundraising NASA SLI 2010

  3. Mulberry Grove High School Team Members • Student Team • Scott- Project Manager, Payload Specialist, and Rocket Construction. • Danielle- Safety Manager, Web Page, and Outreach Program. • Kayla N.- Web Page, Journalist, and Outreach Program. • Kayla J.- Web Page, Journalist, and Outreach Program. • Heather- Rocket Construction. • William- Payload and Vehicle. • Logan- Payload and Vehicle. • Mentors • Mr. John Paine • Mrs. Denyse Blankenship • Mr. Larry Terneus • Mr. Ryan Paine NASA SLI 2010

  4. Mulberry Grove High School Rocket Dimensions, Material Diameter: 4 inches Length: 109.5 inches Gross Liftoff Weight: 18 lbs 11 oz Material: G10 Fiberglass Mad Dog Dual Deployment Kit NASA SLI 2010

  5. Mulberry Grove High School • Justification of Choice • Faster design time • More durable • Insured performance • Half scale model available at Performance Rocketry- Little Dog • Used the same kit in SLI 2009 • Con: Heavier than other materials NASA SLI 2010

  6. Mulberry Grove High School Plan for Vehicle Safety, Verification, and Testing The construction will be inspected by our level 3 as we build and assemble the vehicle. Adequate sized vent holes will be drilled into all sections of the vehicle to prevent premature separation. The vehicle will be flown in a test flight sometime in February. NASA SLI 2010

  7. Mulberry Grove High School Stability Analysis • Center of Pressure (from nose) 87.6 inches • Center of Gravity (from nose) 76.0 inches • Stability Margin 2.9 • Thrust-to-Weight Ratio 6.8 to 1 • Rail Exit Velocity 69 ft/sec NASA SLI 2010

  8. Mulberry Grove High School Motor Selection • Engine selected • Cesaroni Technology Inc. • K570 • Diameter- 54 mm • Length- 19.21 in • Burn time- 3.9 sec • Total impulse - 2070.258 N-Sec NASA SLI 2010

  9. Mulberry Grove High School Plan for Motor Safety, Verification, and Testing Motor will be inspected for damage from shipment before it is used. NASA SLI 2010

  10. 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

  11. 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

  12. 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

  13. Mulberry Grove High School Thermocouple Sensors Three 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

  14. 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 K570 motor to find the temperature range of sensors that we need. NASA SLI 2010

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

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

  17. Mulberry Grove High School UVA 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

  18. 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 will work. 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

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

  20. 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

  21. Mulberry Grove High School Parachutes Drogue Chute 24 inch SkyAngle Velocity of Descent: 64 ft/sec Main Chute 60 inch SkyAngle Velocity of Descent: 23 ft/sec NASA SLI 2010

  22. Mulberry Grove High School Tracking • The receiver is a 10-channel unit manufactured by F & L Electronics with analog tuning to within 10 hertz. This makes it around 100 times more accurate than a digitally tuned receiver. • The antenna is foldable and lightweight. • The transmitter is small and will require little space in the payload compartment. • HAM radio license is not required. NASA SLI 2010

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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 Grad 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

  28. Mulberry Grove High School Budget and Fund Raisers The budget is manageable and realistic for this project. Fundraisers include: a play in March entitled “Spring Break”. (four performances) Dinner followed by the “hanging of banners” celebration recognizing the last four years of TARC teams that made it to the finals and the 2009 and 2010 SLI teams. NASA SLI 2010