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One or Two Hatches?

One or Two Hatches?. May be easier to reach into a BalloonSat with two hatches. Hatch Closure. Stretch rubber band over hatch and wrap around tube(s) extending from airframe. Hatch Closures. Wrap a rubber band around tubes glued into hatch. Permanent Airframe Holes.

jeffreyhudson
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One or Two Hatches?

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  1. One or Two Hatches? • May be easier to reach into a BalloonSat with two hatches

  2. Hatch Closure • Stretch rubber band over hatch and wrap around tube(s) extending from airframe

  3. Hatch Closures • Wrap a rubber band around tubes glued into hatch

  4. Permanent Airframe Holes • Passes bolts and rubber bands through wall • Insert and glue a plastic tube

  5. Alignment Blocks on Hatches • Positive lock • Prevents hatch from sliding around

  6. Wrap Airframe in Tape • Compression helps hold airframe together • Adds color to BalloonSat

  7. Colored Mailing Tape • Lighter than aluminum duct tape • Multiple colors

  8. Plastic Lids can Shield Sensors from Direct Sunlight • Bolt to airframe • Add air openings

  9. Cut Open Tubing • Cutting away the tape covering tubes makes it easier to pass the tether though the tube

  10. Hand Warmer as a Heat Source • Design a space inside the BalloonSat for a hand warmer

  11. Camera Brace • Glue a Styrofoam strip to the airframe and against the edge of the camera for bracing

  12. Camera Lens Opening • Make holes larger than lens to accommodate the camera’s angle of view • Make opening for light meter (if necessary)

  13. Darken Camera Openings • May reduce glare

  14. Testing • Weight Test • Shake Test • Drop Test • Cold Test • Function Test

  15. Tethering BalloonSats • Use wire hook to pull tether through tube

  16. Tethering BalloonSats • Use split rings to prevent tether from pulling out

  17. Tethered BalloonSats

  18. The Mission Begins

  19. Recovery • The mission’s not over yet

  20. Data Analysis

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