[aprssig] A strong argument for a cutdown device
tony at ve6mvp.com
Sun Aug 11 00:25:25 CDT 2013
Camp David isn't anywhere near by, is it? <smile>
At 11:06 PM 2013-08-10, you wrote:
>You lucky guy!!! Your coming down within 25 miles of the nearest
>anything, and luckily it is a home IGate! At least you'll be able to
>hear down to a thousand feet or so. Its 1 Am and it will be on the
>ground at this rate at 0119 EDT. Good luck!
>Its falling within direct range of an IGate!!!
>On Sat, Aug 10, 2013 at 11:14 PM, John Gorkos <jgorkos at gmail.com> wrote:
>> Our local club did a HAB launch today that went horribly wrong. Check out
>> the track of AB0OO-11 to see what I mean. After 12 hours aloft, we are
>> still getting good positional data from the balloon, but we have no control
>> over it.
>> We ran out of fill gas and only had about 3.5 pounds of lift on a 3 pound
>> payload. Instead of just aborting, we launched anyway. The balloon
>> averaged about 100 feet per minute of lift, and after 7 hours it had only
>> made it to 60k feet. For the last 4 hours, it's been gradually drifting in
>> circles, getting lower and lower. We're going to lose it somewhere over
>> south western North Carolina, and we'll probably never see it again.
>> This balloon was flying the new Byonics
MT-400 tracker, which is still going
>> strong with a Sparkfun >60k GPS (it's been flight tested by us to 93k) on 6
>> Energizer Lithium Ultra batteries.. Unfortunately, I didn't include the
>> additional battery pack, relay, and wiring
needed for a nichrome cutdown, so
>> instead of being able to abort the flight at the time of our choosing, it
>> continues to drift aimlessly over the Carolina's, along with 2 HD video
>> If anyone happens across what will probably
be a still-inflated balloon, I'd
>> really like the memory cards out of the cameras
>> John Gorkos
>> aprssig mailing list
>> aprssig at tapr.org
>aprssig mailing list
>aprssig at tapr.org
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