highaltitude.log.20090928

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[11:09] <edmoore> guys - we may launch a badgercub on a 3kg this afternoon
[11:09] <edmoore> we have a left-over 3kg from some tethered testing - may aswell use it
[11:10] <SpeedEvil> :)
[11:10] <bt42> nice
[11:10] <SpeedEvil> Do inflated balloons not degrade?
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[14:03] <edmoore_> rjharrison: probs launching ~6
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[14:33] <Laurenceb> hi
[14:46] <SpeedEvil> hi
[15:29] <Laurenceb> can kapton film be vacuum formed?
[15:32] <SpeedEvil> I have vague recollections that it doesn't really melt well.
[15:32] <Laurenceb> I'm sure I saw something at CUED
[15:32] <SpeedEvil> I suspect it'd need to be in a non-oxygenated atmosphere
[15:32] <SpeedEvil> this is to make the nosecone?
[15:33] <Laurenceb> yes
[15:34] <Laurenceb> itd need to be pretty hot...
[15:47] <Laurenceb> http://www.pleo.com/dupont/kaptonjp.htm
[15:47] <Laurenceb> doesnt look that bad
[15:48] <Laurenceb> I dont get the pressure
[15:49] <Laurenceb> 500psi is insanely high
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[15:50] <SpeedEvil> It presumably means forming pressure
[15:50] <SpeedEvil> An inch thick bar will take 500psi to stretch
[15:50] <SpeedEvil> err - 500 pounds
[15:51] <Laurenceb> yeah that seems more reasonable
[15:51] <Laurenceb> I used to have a vacuum former
[15:55] <Laurenceb> http://cgi.ebay.co.uk/Formech-Compac-Mini-Vacuum-Forming-Machine_W0QQitemZ140308830265QQcmdZViewItemQQptZLH_DefaultDomain_3?hash=item20ab0ed839&_trksid=p3286.c0.m14
[15:55] <Laurenceb> wow
[15:55] <Laurenceb> I should have sold it :-/
[15:56] <Laurenceb> lent it to me stepdad ages ago :(
[15:56] <Laurenceb> *my
[16:01] <Laurenceb> http://cgi.ebay.co.uk/Formech-FM660-Vacuum-Forming-Machine_W0QQitemZ140308822047QQcmdZViewItemQQptZLH_DefaultDomain_3?hash=item20ab0eb81f&_trksid=p3286.c0.m14
[16:01] <Laurenceb> ^ seriously what the ...
[16:02] <Laurenceb> I had one of the small ones
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[17:25] <Laurenceb> http://media.photobucket.com/image/recent/imagercc1/archive/page7/warhero_700.jpg <- lol
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[17:36] <sbasuita> DanielRichman, btw, I checked the driver status. Turns out that kernel 2.6.32 has 3D support for r6xx (my card). However, karmic will ship with 2.6.31 :(
[17:39] <DanielRichman> sbasuita, ha!
[17:39] <DanielRichman> go spin yer own kernel, lazy
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[18:49] <Laurenceb> yo Randomskk
[18:49] <Randomskk> heya
[18:52] <Laurenceb> Randomskk: I was considering a dual rotor VTOL vehicle a while back
[18:52] <Laurenceb> not sure how the handling would compare to a quad rotor
[18:53] <SpeedEvil> how doing the other axes?
[18:53] <Laurenceb> servos
[18:53] <SpeedEvil> oh - you mean skew the duals
[18:53] <Laurenceb> SpeedEvil: Randomskk is interested in VTOL vehicles :P
[18:54] <Randomskk> well, I'm (slowly) making a quadcopter
[18:54] <SpeedEvil> I'm trying to find time to get started on my monocopter.
[18:55] <Laurenceb> a levitating Patrick Moore?
[19:00] <junderwood> Launch in 30 minutes. Badger Cub from Cambridge on 434.525 MHz
[19:00] <Laurenceb> oh cool
[19:00] <Laurenceb> its a bit late :P
[19:00] <SpeedEvil> :)
[19:06] <junderwood> Night flight to France
[19:06] <Laurenceb> ah neat
[19:07] <Laurenceb> anyone to recover?
[19:07] <Laurenceb> any cameras?
[19:07] <SpeedEvil> Should try for germany, and do 98 more launches.
[19:07] <SpeedEvil> np: Nena - 99 luft balons.
[19:07] <junderwood> Payload is Badger cub, SAE and postage in Euros
[19:07] <SpeedEvil> Have you wandered over to @hamradio, to check for frogs?
[19:08] <SpeedEvil> #
[19:09] <junderwood> be my guest. We're heading for Calais
[19:10] <junderwood> (the balloon, that is)
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[19:27] <junderwood> Launched
[19:29] <Laurenceb> tracker?
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[19:47] <junderwood> Uploading data to the tracker
[19:47] <junderwood> BADGERCUB,221,18:45:09,52.1214,0.2265,6419,11,17.3
[19:47] <Laurenceb> tracker?
[19:47] <junderwood> rjharrison: Does the tracker need a kick?
[19:48] <Laurenceb> which tracker are you using?
[19:49] <Laurenceb> I dont see it
[19:49] Action: SpeedEvil places the telescope to his blind eye, and sees no balloons.
[19:50] <junderwood> http://www.robertharrison.org/listen/view.php
[19:50] <junderwood> Usually appears on http://spacenear.us/tracker/
[19:57] <junderwood> We're on the tracker
[20:00] <SpikeUK> OK - got you on http://spacenear.us/tracker/ at 12548 m
[20:04] <SpikeUK> junderwood Hi. Have run a public prediction?
[20:05] <SpikeUK> Position: 51.9392,0.3912 - Altitude: 15037 m Rate: 10.1 m/s
[20:06] <junderwood> At the current rate of ascent the landing prediction is somewhere in the Thames estuary
[20:07] <SpeedEvil> that's ascending at some rate
[20:07] <Laurenceb> oh dear
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[20:07] <junderwood> The balloon was filled for a tethered lift and then vented before this flight. I don't think they could vent enough to reduce the rate
[20:08] <SpeedEvil> ah
[20:08] <Laurenceb> what did you lift?
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[20:10] <junderwood> Nothing. Not enough Helium :-(
[20:11] <SpikeUK> Good data 51.9032,0.4494 - Altitude: 18112 m Rate: 5.2 m/s
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[20:15] <SpikeUK> Position: 51.8852,0.4741 - Altitude: 20035 m Rate: 6.7 m/s
[20:16] <SpikeUK> 20k!
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[20:16] <SpeedEvil> what's expected burst?
[20:16] <SpeedEvil> 30kish?
[20:18] <SpikeUK> Position: 51.8762,0.4961 - Altitude: 21137 m Rate: 8.7 m/s
[20:23] <SpikeUK> Position: 51.8621,0.5258 - Altitude: 23063 m Rate: 6.4 m/s
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[20:25] <rjharrison_home> launch tracking
[20:25] <rjharrison_home> live badgercub
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[20:26] <rjharrison_home> http://www.robertharrison.org/tracker/
[20:26] <rjharrison_home> CUSF altitude attempt
[20:28] <SpeedEvil> we're watching :)
[20:28] <SpeedEvil> no other payload/
[20:28] <SpikeUK> RJH - onlyseem to be getting tracking on http://spacenear.us/tracker/
[20:29] <junderwood> Where did it go?
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[20:33] <junderwood> Signal disappeared at 19:27:33 GMT
[20:33] <rjharrison_home> Yep
[20:33] <rjharrison_home> The cub has died
[20:34] <SpikeUK> Oh ;-(
[20:34] <rjharrison_home> Bloody missile defense system
[20:35] <Laurenceb> lol
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[20:35] <rjharrison_home> ping RobertB
[20:35] <rjharrison_home> ping RocketBoy
[20:35] <junderwood> Died after an uplink. Suicide?
[20:36] <SpikeUK> Not telling it jokes again ?
[20:37] <RocketBoy> yo
[20:38] <RocketBoy> rjharrison_home: I got your order - It should be in the post tomorrow
[20:38] <rjharrison_home> Thanks
[20:38] <rjharrison_home> Sorry PM'ed you
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[20:49] <rjharrison_home> Yo edmoore
[20:49] <rjharrison_home> What happened?
[20:50] <edmoore> don't know yet
[20:54] <RocketBoy> I can hear some funny two tone thing about every 6 seconds on that frequency - I can hear it on the whip inside just - I guess it woudl be relativly nearby me at the mo
[20:54] <rjharrison_home> Ulink?
[20:56] <Laurenceb> was trhe a watchdog timer running on the 8051?
[21:03] <RocketBoy> what I can't beleive is that I was writing Intel 8051 assembler is 1982 and its still going 27 years later - i assume its the same chip ?
[21:06] <Laurenceb> with a transceiver on the die as well
[21:06] <Laurenceb> I think its "enhanced 8051"
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[21:21] <Laurenceb> did it get snagged up in the top of the brain tree?
[21:22] <Laurenceb> I guess the tree wanted to add an 8051 to its fruits
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[21:22] <DanielRichman> ping rjharrison_home rjharrison
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[22:17] <SpeedEvil> RocketBoy: pretty much
[22:17] <SpeedEvil> RocketBoy: it's nice and cheap
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[23:01] Nick change: SpeedEvil1 -> SpeedEvil
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[23:40] <Laurenceb> any news on the payload?
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[00:00] --- Tue Sep 29 2009