Jul 16, 2010
    Space Sphere - Equipment
    A list of all equipment needed to ensure a successful launch and recovery.

  • 5 or 6 GoPro HD Hero Naked cameras
  • Custom battery packs (at least double mAh of stock)
  • Stock batteries only last 2.5 hours. The last footage I saw of these cameras on a weather balloon stated 2 hours up, 35 minutes down. We don't want the cameras to cut out midway.
  • Class 4 SD HC memory cards
  • Camera capacity: SD card, up to 32GB capacity (SDHC)
  • Average recording times (using 32GB SD card):
  • 1080p (30 fps): 4h 21m
  • 960p (30 fps): 5h 26m
  • 720p (60 fps): 4h 21
  • 720p (30 fps): 8h 09m
  • WVGA (60 fps): 8h 09m
  • Weather balloon
  • Tether
  • Connects the balloon to the payload
  • What will this be made of?
  • Tarpaulin
  • To lay the balloon out on when we fill it prior to launch
  • Enclosure
  • Styrofoam cooler
  • Custom job (if using 5 cameras custom is probably needed)
  • Recovery device
  • Parachute
  • Current favorite idea
  • Drag inducer
  • See model rocketry for ideas
  • Tracking device
  • SPOT satellite messenger?
  • Duct Tape
  • Inertial monitoring device
  • IMU
  • Plate with name, address and phone number

Jul 16, 2010
John Brown:

  • Hydrogen or Helium
Jul 16, 2010
Jul 17, 2010
John Brown:
    Nice. I was wondering if it would be possible to just wire a pair of batteries in series, but that was dependent on being able to get to the terminals easily. Looks like that is possible.
Jul 17, 2010
    Surely you meant in parallel? We'd want to double the potential amperage not the voltage.

    I'm not totally in love with his implementation, but the idea seems sound. We wouldn't have to compromise the airtight integrity of the camera's cases too much if we design the wire pass-thru properly. We could also make sure that the external battery enclosure(s) is airtight as well.
Jul 17, 2010
John Brown:
    No, I meant in parallel. That's how we get more powerful cameras that can see further, right?
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