highaltitude.log.20070614

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[14:03] <Max0> hi
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[18:06] <edwardmoore> hi all
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[18:14] <edwardmoore> hi steve
[18:14] <rocketboy> hi ed
[18:14] <rocketboy> hows it going - all finished then
[18:15] <rocketboy> no viva?
[18:17] <edwardmoore> sorry back
[18:17] <edwardmoore> it's great
[18:17] <edwardmoore> although it's storming a little outside
[18:18] <edwardmoore> it's a real relief to be done
[18:18] <rocketboy> yeah tis a bit wet ere 2
[18:19] <edwardmoore> it's quite nice. in a put-on-a-film-an-open-a-beer sort of way
[18:19] <rocketboy> yeah I remeber what I finished my MSc - the last exam I ever did
[18:19] <edwardmoore> :)
[18:20] <rocketboy> I have been playing with lifting body shapes - for a sort of glider
[18:21] <Max0> hey rocketboy
[18:21] <edwardmoore> uhuh..... with a view to gliding?
[18:21] <edwardmoore> actually thast was a fairly obvious thing i jsut said
[18:21] <edwardmoore> best ignored
[18:21] <rocketboy> sort of
[18:21] <rocketboy> a backup idea
[18:22] <rocketboy> cut out of polystyrine foam - with a hot wire cutter bed that I made
[18:22] <edwardmoore> i like the idea of a lifting body-esque glider for the initial fall
[18:22] <rocketboy> you were going to make a CRN hot wire cutter ?
[18:22] <edwardmoore> but i think it's that *or* a payload with a drogue, rather than a lifting body and a drogue
[18:22] <edwardmoore> i think james was
[18:23] <rocketboy> yeah - well I was thinking most of the way with a chute deployed at st 500ft
[18:23] <rocketboy> st = say
[18:23] <edwardmoore> ok
[18:23] <edwardmoore> surelky you'd basically need wings to get enough over-the-ground range?
[18:24] <rocketboy> I think it will work OK with a 45 degree glide angle
[18:24] <rocketboy> so as much range as height
[18:24] <edwardmoore> i guess so
[18:24] <edwardmoore> i still harbour this mini dream of us setting up deck-chairs on the launch site and waiting for it to come back
[18:25] <rocketboy> it depends if my theory about gliding in thin atmophere is correct
[18:25] <edwardmoore> i don't see why it wouldn't be
[18:25] <rocketboy> yeah - that would be way cool
[18:25] <rocketboy> yeah me neither - the thinking seems to hold together
[18:26] <rocketboy> just doen't seem to work at the limits thoug - no atmosphere on gliding - just fall
[18:26] <rocketboy> on = no
[18:27] <edwardmoore> but we always have some atmosphere
[18:27] <rocketboy> yeah I guess
[18:28] <rocketboy> if I get time between now and then I'll bring one on Saturday
[18:28] <edwardmoore> but yeah, i do like the idea of a glidery shape to get as much movement over the ground as possible after release from the balloon
[18:29] <rocketboy> the parafoil is the way to go for the full project - the lifting body is just a backup - or a way to gain steering experiance
[18:31] <edwardmoore> i'll fire of an email to john barber and see if we can talk to his son
[18:31] <edwardmoore> (his son being the parafoil expert)
[18:31] <rocketboy> cool
[18:32] <edwardmoore> oooh, i hacked an old polaroid and got the ultrasonic rangefinder out
[18:33] <rocketboy> thats a good idea - especially for sensing the ground
[18:33] <edwardmoore> it'd be great to get a precision altitude measurement to do the parachute flare at landing
[18:33] <rocketboy> actually I have an old polaroid somewhere
[18:43] <Max0> got a Motorola WR850Gv3 wifi router on ebay today :)
[18:43] <rocketboy> :)
[18:43] <Max0> also got a rockwell gps and 5110 phone
[18:44] <Max0> phone looks easy from jcs quide
[18:44] <Max0> but i might need some help with the gps
[18:45] <Max0> do you guys keep the bottles of gas?
[18:45] <Max0> or just send them back?
[18:45] <Max0> as i want a similar bottle for a air rifle
[18:46] <edwardmoore> you probably don't want to use helium :)
[18:46] <Max0> hehe true
[18:46] <edwardmoore> for an air rifle I'd suggest one of the 600g bottles that paintballers use
[18:46] <Max0> hehe no im after a 12L 232 bar bottle
[18:46] <Max0> same as a drive bottle
[18:46] <edwardmoore> blimey ok
[18:47] <Max0> which you use to refill the gun every few months
[18:47] <Max0> but thats another matter
[18:47] <Max0> ;)
[18:49] <rocketboy> helium for the supersonic properties?
[18:49] <Max0> no no i was just woundering if you had the empty bottles
[18:50] <rocketboy> nah - they have to go back - ther is a deposit (or charge)
[18:50] <Max0> ah right was just woundering
[18:52] <rocketboy> bbl
[18:52] <edwardmoore> cya
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[19:24] <phatmonkey> hey all
[19:39] <edwardmoore> hi pm
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[22:05] <Sbear> hi, you looking at launching something this weekend? Looks like it from the log.
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[22:29] <Sbear> going to go now, try to be on a bit sooner tomorrow.
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[00:00] --- Fri Jun 15 2007