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One or Two Hatches?

Get valuable insights on optimizing your BalloonSat project with tips on hatches, closures, alignment blocks, and more. Learn about using plastic lids, hand warmers, camera bracing, testing procedures, and tethering methods. With this comprehensive guide, your BalloonSat mission is set for success!

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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