Comments on: High altitude photographic balloon

By: nickysam

nickysam — Sat, 04 Oct 2008 06:37:06 +0000

The High Altitude Photographic Balloon use a Parallax BS2px and is responsible for reading and recording latitude, longitude, time, altitude and taking pictures.High-altitude plastic balloons are only partially inflated at launch to allow for gas expansion as the balloon climbs.
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Nickysam

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By: MagicWuff

MagicWuff — Mon, 08 Sep 2008 00:21:48 +0000

hey wouldn’t the total weight have to be negative for it to float:p

By: Eric

Eric — Sun, 07 Sep 2008 11:13:37 +0000

WHy are comments closed on all the posts above this one?

By: califrag

califrag — Sat, 06 Sep 2008 20:35:30 +0000

wait.. wouldn’t this cover it?

“I set the external signal lights to flash at 40 pulses per minute below 60,000 feet in accordance with FAA rules even though I am flying exempt.”

By: erik

erik — Sat, 06 Sep 2008 19:51:58 +0000

indeed, dok is right

under § 101.35 Equipment and marking requirements.

“(b) No person may operate an unmanned free balloon below 60,000 feet standard pressure altitude between sunset and sunrise (as corrected to the altitude of operation) unless the balloon and its attachments and payload, whether or not they become separated during the operation, are equipped with lights that are visible for at least 5 miles and have a flash frequency of at least 40, and not more than 100, cycles per minute.”

very cool though, i love this stuff

By: Dok

Dok — Sat, 06 Sep 2008 19:36:29 +0000

Actually they didn’t meet all FAA regulations. Yes it was under the 6lb payload but they launched it before sunrise (7:01 on August 31st) which is not allowed. Other than that, great project.