HAPS-1, UMSFB1 redux |
HAPS-1, UMSFB1 redux |
Aug 2 2008, 08:32 PM
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#1
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Next weekend, if everything goes well, a 15x30cm carbon deck will fly onboard HAPS-1 -http://www.pegasushabproject.org.uk/wiki/doku.php/missions:haps:haps-1
One end of the deck will be the flight radio, the other is my responsibility, a single camera (Powershot A560 ), stand alone GPS logger (to 18km), and a small wide angle mirror so the camera can see the payload, the chute and the envelope above. Still working on a hacked firmware for the A560 - but the intention is every minute will include 15s of video, and then 5-10 stills in fairly quick succession - with the hope that the rotation of the balloon will give us some mosaics out of each section. More details, some photos etc, later in the week. |
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Aug 25 2008, 04:29 PM
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#2
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Fascinating venture! Congratulations!
Yeah first you may think the ride on the balloon is intense before you've seen the ride with the parachute Apropos, if it's desired, would it be possible to stabilize the payload with a kind of tail unit that run with the wind? In this sequence do you hear an airplane too? http://www.umsfbu.com/HAPS1/VIDEOS/MVI_6080.AVI A violation of the exclusion zone -------------------- |
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Aug 25 2008, 04:52 PM
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#3
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
would it be possible to stabilize the payload with a kind of tail unit that run with the wind? To be honest, you would probably just make it worse. It's just too chaotic and random to try and guesstimate what might or might not make it all more stable. Anything that can give the parachute something to get tangled up in, probably isn't a great idea. That's why I decided against putting a small camera out on a beam to image the payload in-situ. The best way is to make a small payload, and put it on a long long line to the balloon and let the laws of physics ( and the low frequency of the pendulum you're left with) do the rest. MVI_6080.avi is just a sub-set from that large MOV ( the MOV's are all the AVI's in sequence ) - so it's the same thing - and at 11,000ish M ( 36kft ) - it's not beyond the realm of possibility that there's an aircraft nearby. Given that I can hear the aircraft at 15kft the way into East Midlands from the ground here - it wouldn't have to be close to hear it. That that sound is the only thing for, well, 11km in any direction - and without a lot of doppler shift it's not passing that close by. The audio is infact only 11khz 8bit mono off the camera - that's all it's got I"m afraid. It was a £70 camera, I didn't fancy risking anything more expensive than that. Right in the middle, that's the moon! Yeah - we spotted that last night looking at them from the boot of our car....I thought I'd see how carefully people were looking |
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