On Tue, 17 May 2005, Russell McMahon wrote:

> Date: Tue, 17 May 2005 22:54:34 +1200
> From: Russell McMahon <apptech@paradise.net.nz>
> Reply-To: Microcontroller discussion list - Public. <piclist@mit.edu>
> To: PIC List <PICLIST@MIT.EDU>, AROCKET <arocket@exrocketry.net>
> Subject: [EE]  high altitude balloon
> 
> Amazingly successful balloon flight to 50,000+ feet plus recovery. Photos, 
> data, tracking etc. When you see how many things these people did wrong it's 
> amazing the results they obtained. There's hope for all of us yet :-). (Flat 
> lithium batteries at last minute - patch in standard 9v batteries, whoops - 
> forgot the software - write some more while the rain stops, ...).
>
>> http://sunsite.utk.edu/~mcoffey/ux-1/

How about 85,000 feet and launching a glider from that altitude 
(autonomous navigation, onboard camera, gps, ground plot, the works):

http://members.shaw.ca/sonde/

Peter
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