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[aprssig] [aprsisce] Transatlantic balloon attempt

Andre aprs at pe1rdw.demon.nl
Sun Mar 25 00:18:01 UTC 2012


OK, sorry I was being pessimistic, I promise it won't happen again and 
keep my hopes up of it surviving untill sun up, maybe by then it will 
hit the jetstream it was suposed to hit today, someone told me it was to 
far south for the stream but was about right in hight.

73 Andre PE1RDW
Op 25-3-2012 1:09, Steve Daniels schreef:
>
> Agreed it's not a burst, worst case a slow leak, and as you say looks 
> to be just a cooling of the gas
>
> Steve Daniels
>
> G6UIM
>
> TorbayFreecycle Moderator
>
> ------------------------------------------------------------------------
>
> *From:*aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] *On 
> Behalf Of *R. Rochte
> *Sent:* 24 March 2012 23:59
> *To:* TAPR APRS Mailing List
> *Subject:* Re: [aprssig] [aprsisce] Transatlantic balloon attempt
>
> The descent rate right now is consistent with what I have seen from 
> zero pressure balloons (including solar Montgolfieres) after sun down. 
>  Almost certainly not a burst event or anything like that - just a 
> simple cooling of the gas.  It's still a long way down to the 
> tropopause from there and it will likely slow down as it approaches. 
>  If it does, indeed, drop below the tropopause before the sun comes 
> up, then it will start to drop like a rock (well, not quite, but a lot 
> faster than we're seeing now).
>
> The big question is, how is their ballast-release controlled?  There 
> was a tweet earlier that seemed to suggest it was timer-based and 
> should have already occurred by now.  If there is also an active 
> ballast release system on board (e.g., altitude dependent), then 
> perhaps the flight is just getting started.
>
> 73,
>
> Robert  KC8UCH
>
> On Sat, Mar 24, 2012 at 7:52 PM, Greg D <ko6th.greg at gmail.com 
> <mailto:ko6th.greg at gmail.com>> wrote:
>
> One more, 88,935 ft at 23:45z, but only 16mph.  I hope it isn't 
> looking out at the vast expanse of ocean ahead and chickening out.  
> Where is that jet stream, anyway?
>
> Greg  KO6TH
>
>
>
>
> Lynn W. Deffenbaugh (Mr) wrote:
>
> Could be a pop and tumble, although I hope not.  At 89,662 feet, the 
> copying Digi/IGate pair are right at the edge of the coverage footprint.
>
>   Note: 349 miles from balloon to digi and another 20 miles to the IGate.
>
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
>
> On 3/24/2012 7:15 PM, Greg D wrote:
>
> Not so fast... aprs.fi <http://aprs.fi> just reported a ping at 
> 23:11z.  Dropped a bit in altitude and speed.  It may be a long night.
>
> Greg  KO6TH
>
>
> Steve Noskowicz wrote:
>
> Looks like we'll all be wondering until some time in the morning...  
> Good luck Mr. Balloon.
>
> -- 
> 73, Steve, K9DCI
>
>
>
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