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[02:09] <macfreak4> hey
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[09:54] <jcoxon> yup
[09:54] <jcoxon> oops wrong window :-D
[09:55] <defy> :)
[09:57] Action: jcoxon is excited, about to go back to uni then can log onto his new gumstix
[09:58] <defy> sweet
[09:58] <defy> I'm trying to figure out if it would be worth trying to get an lcd to go on one of mine
[09:59] <defy> i bet it wouldn't be easy, heh
[10:03] <jcoxon> lcd for what?
[10:04] <defy> not sure really, just to see how hard it is..it could be cool to get X going
[10:05] <jcoxon> hehe, the signs of a true hacker
[10:05] <defy> lol
[10:05] <defy> just a linux geek :P
[10:06] <jcoxon> true
[10:06] <defy> having a hand held mame box would be cool..I've seen a few people on the lists talking about making them
[10:06] <jcoxon> but you need a fair amount of skill to solder all those wires to the little pads
[10:06] <jcoxon> hehe
[10:06] <jcoxon> i'm going to stick to fligh computers
[10:07] <defy> yea, which I have none of
[10:08] <jcoxon> hehe
[10:08] <defy> i've gotten the parafoils motor balanced perfectly now, it gets quite high in only a few seconds
[10:09] <jcoxon> oooo, any chance of pictures sometime?
[10:10] <defy> yea, i think when its a calmer day I'll get the servos on and take some video of it at the park
[10:10] <defy> also once I have it working i'll probably re-make the balsa frame out of alluminum
[10:10] <jcoxon> is it rc?
[10:10] <defy> yeah
[10:11] <jcoxon> v. cool
[10:12] <defy> i'm only more convinced that it wont work from the balloon though
[10:13] <jcoxon> so am i
[10:13] <jcoxon> had a cool idea to help tracking of pegasus
[10:13] <defy> yea?
[10:13] <jcoxon> have a secondary payload which contains just a mobile phone and a parachute
[10:14] <jcoxon> at about 30,000ft release it ,
[10:14] <jcoxon> let it drift down and then using the internet mobile phone services track it
[10:14] <jcoxon> will at least give an idea of general direction
[10:14] <defy> hrm, yea then you'd get a rough idea of which way it was heading
[10:14] <jcoxon> exactly
[10:14] <defy> cool
[10:14] <jcoxon> also with a bit of random calculation hte time, height
[10:15] <jcoxon> therefore speed of ascension
[10:15] <jcoxon> and therefore be able to calculate burst position
[10:15] <defy> sweet, using the info gathered from the first one?
[10:18] <jcoxon> well you know the time of launch, the height that the minipayload would be released
[10:18] <defy> ah
[10:18] <jcoxon> rough estimate of time to descend
[10:22] <jcoxon> right i better get going
[10:22] <jcoxon> chat later
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[16:29] <jcoxon> defy, the gps works straight away
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[22:14] <malgar> jcoxon, i don't find anymore those cheap weather balloons on ebay
[22:14] <malgar> suggestions?
[22:32] <jcoxon> hey malgar
[22:32] <malgar> i'm here
[22:32] <jcoxon> let me have a look
[22:32] <jcoxon> got my new gumstix :-D
[22:33] <jcoxon> http://cgi.ebay.co.uk/Meteorological-balloon-500gm-very-large_W0QQitemZ9512253448QQcategoryZ88433QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
[22:34] <malgar> tnx
[22:34] <jcoxon> no probs
[22:34] <malgar> when is scheduled your next launch?
[22:34] <jcoxon> right will be back in a sec, restarting
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[22:34] <malgar> ok
[22:38] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) joined #highaltitude.
[22:38] <jcoxon> back :-D
[22:38] <malgar> eheh
[22:38] <malgar> when is scheduled your next launch?
[22:39] <jcoxon> the plan is for the launch window to open 16th june
[22:39] <jcoxon> and launch probably the 23rd
[22:40] <malgar> what do you plan to avoid the problems with the last launch?
[22:41] <jcoxon> firstly to take more time in preparing
[22:41] <jcoxon> also to keep it simple
[22:41] <jcoxon> smaller balloon
[22:41] <jcoxon> careful watch over the jetstream
[22:41] <jcoxon> only launch when suitable
[22:43] <malgar> and launch site?
[22:43] <jcoxon> hmmmm tis a tough one
[22:43] <malgar> wouldn't be better to launch from galles?
[22:43] <jcoxon> galles?
[22:43] <malgar> usually winds comes from wst to east
[22:43] <malgar> so you would have more ground
[22:44] <malgar> evenv with a strong jetstream
[22:45] <jcoxon> due you mean Wales?
[22:45] <malgar> h yeah that is the italian name
[22:45] <malgar> excuse me
[22:45] <jcoxon> hehe
[22:45] <jcoxon> no probs
[22:45] <jcoxon> true wales would give more ground
[22:46] <jcoxon> but its quite far away
[22:46] <jcoxon> i'm still thinking cambridge
[22:47] <jcoxon> but it'll be after my exams so i won't be in a rush
[22:47] <jcoxon> i can wait for more suitable winds
[22:47] <malgar> ehhe right
[22:48] <jcoxon> any further with permission in italy?
[22:49] <malgar> i have to think a way to recover it from the trees... if i will have not a good idea i have to launch it 250km from here where there is only grass
[22:49] <malgar> yes they answered me
[22:49] <malgar> that pdf is right
[22:50] <malgar> and i have to contact the nearest airport where i'll launch
[22:50] <malgar> (but i don't know where i'll launch)
[22:51] <jcoxon> hmmho, trees
[22:52] <malgar> they are very high.. no way to go there with a ladder
[22:53] <malgar> very high and near each other
[22:53] <jcoxon> also if it doesn't get caught you'll loose reception of gps on the ground
[22:53] <malgar> for about 80km radius around here, with about... 70-80% of coverage
[22:53] <jcoxon> i'm sure its very pretty landscape :-)
[22:54] <malgar> i would like to launch from here because i would like to see my mountains from very high.. but is dangerous for the mission
[22:56] <jcoxon> definitly a tough mission
[22:56] <jcoxon> what system do you plan to go for?
[22:57] <malgar> two cameras and aprs would great
[22:57] <malgar> i know 2-3 ham that surely could help me
[22:58] <jcoxon> are there any open spaces?
[22:58] <malgar> how much open? :)
[22:58] <jcoxon> enough to land a glider?
[22:58] <malgar> yeah sure
[22:58] <jcoxon> well then
[22:58] <jcoxon> hehe
[22:59] <jcoxon> go for it!
[22:59] <malgar> tough...
[22:59] <jcoxon> http://www.members.shaw.ca/sonde/
[22:59] <jcoxon> possible
[22:59] <malgar> i have no experience with airplanes, rc,..
[23:00] <jcoxon> same :(
[23:03] <jcoxon> hmmm, i've been thinking
[23:03] <jcoxon> is it about time we called an high altitude IRC conference
[23:03] <jcoxon> get everyone one at hte same time
[23:04] <jcoxon> and discuss everything...
[23:04] <malgar> hehe
[23:04] <malgar> right
[23:04] <malgar> would be cool
[23:05] <jcoxon> so for example you could discuss if a glider was possible with phatmonkey
[23:05] <jcoxon> defy is looking into parafoil descent
[23:05] <jcoxon> as he is in new zealand - lots of mountains/sea
[23:06] <malgar> mmh.. for my first launch a glider could be very very very hard for me...
[23:06] <jcoxon> oh i know
[23:06] <malgar> but it should be very very very cool
[23:06] <malgar> :)
[23:06] <jcoxon> oh yeah!
[23:06] <jcoxon> but i think with careful planning and with help from others it could be made cheaply and simply
[23:08] <malgar> but a glider would return home by itself?
[23:08] <malgar> how is possible to program it well?
[23:08] <jcoxon> well i've been thinking of a negative feedback system
[23:09] <jcoxon> or http://www.nongnu.org/paparazzi/
[23:10] <malgar> definitely bookmarked
[23:10] <malgar> :)
[23:11] <jcoxon> well basically you have a set of gps coordinates you want it to get to
[23:12] <jcoxon> every say 30secs it reads its coordinates
[23:12] <jcoxon> and compares them with the target
[23:12] <jcoxon> it then adjusts its flight path
[23:13] <malgar> yes but i don't know how is better to pilot an airplane.. how to turn it,.. the pitch...
[23:14] <malgar> if these settings are not good it falls
[23:14] <jcoxon> true, it would require some research
[23:15] <malgar> and practise with an rc model
[23:15] <jcoxon> yeah
[23:15] <jcoxon> perhaps first drop from tethered balloon
[23:15] <jcoxon> say at 1km up
[23:15] <jcoxon> wouldn't be difficult
[23:15] <malgar> yes sure
[23:16] <jcoxon> flight computer?
[23:16] <malgar> anyway i'm still afraid that is a to big project for me at the time
[23:16] <jcoxon> :-D
[23:16] <jcoxon> oh well
[23:16] <malgar> eheh
[23:17] <jcoxon> you can help with the pegasus missions
[23:17] <jcoxon> :-D
[23:17] <malgar> a question about package radio.. do you think that would be possible to receive directly the images from the balloon?
[23:18] <malgar> not low res atv
[23:18] <malgar> but few good pictures froma digicam
[23:18] <jcoxon> hmmmm
[23:18] <jcoxon> possibly
[23:18] <jcoxon> really not my field though :(
[23:18] <malgar> i have to search about it
[23:19] <jcoxon> no reason why not
[23:19] <malgar> if the balloon would get lost at least i have the images
[23:19] <jcoxon> true
[23:19] <jcoxon> go for a super cheap payload
[23:20] <jcoxon> camera down, gps, some flight computer, mobile phone, parachute
[23:20] <jcoxon> and hope for hte best
[23:20] <malgar> this is another way that should work well
[23:20] <jcoxon> hehe
[23:20] <jcoxon> Soviet/Pegasus style
[23:21] <malgar> eheh
[23:22] <malgar> anyway i prefer a side looking camera
[23:22] <malgar> i want to see the black sky
[23:24] <jcoxon> :-D
[23:24] <jcoxon> the new gumstixs have 16mb of flash now
[23:25] <jcoxon> makes my life much easier
[23:25] <malgar> and before?
[23:25] <jcoxon> 4
[23:27] <jcoxon> also thought of extra way of tracking
[23:28] <malgar> eheh
[23:28] <malgar> yes
[23:29] <jcoxon> have a secondary payload
[23:29] <jcoxon> of just an old mobile phone
[23:29] <malgar> like?
[23:29] <malgar> uhm
[23:29] <jcoxon> which at 30,000ft is released
[23:29] <jcoxon> and parachutes down
[23:29] <malgar> cool
[23:29] <jcoxon> while the main payload carries on
[23:30] <jcoxon> using the internet phone tracking service you can pinpoint the phone location
[23:30] <jcoxon> and so we know which direction the balloon is going in
[23:30] <jcoxon> also with a bit of number fiddling we can calculate rate of ascension
[23:48] <jcoxon> right bed time
[23:49] <jcoxon> cya
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[23:49] <Professor> heya all
[00:00] --- Mon Apr 24 2006