highaltitude.log.20160317

[00:00] <lz1dev> does that mean is forever yours if it lands there?
[00:01] <adamgreig> haha I guess so
[00:02] <adamgreig> it's mine until I give it back I suppose
[00:02] <adamgreig> :P
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[00:14] <SpacenearUS> New vehicle on the map: 03CHANGEME - 12http://tracker.habhub.org/#!qm=All&q=CHANGEME
[00:15] <rodrigue> knj
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[03:00] <SpacenearUS> New vehicle on the map: 03K6odx_chase - 12http://tracker.habhub.org/#!qm=All&q=K6odx_chase
[03:03] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
[03:04] <SpacenearUS> New vehicle on the map: 03n5xul_chase - 12http://tracker.habhub.org/#!qm=All&q=n5xul_chase
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[08:30] <AndyEsser> morning
[08:41] <fsphil> *ning
[08:41] <Vaizki> 'ing
[08:41] <Vaizki> And congrats to adamgreig
[08:41] <AndyEsser> ?
[08:42] <AndyEsser> ah, getting to the USA?
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[09:24] <Vaizki> yes, that
[09:24] <Vaizki> it's still a single AA
[09:25] <AndyEsser> nice
[09:25] <AndyEsser> solar panels?
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[10:21] <SpacenearUS> New position from 03SP6NVB-11 after 034 days silence - 12http://tracker.habhub.org/#!qm=All&q=SP6NVB-11
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[10:37] <pb0ahx> !flights
[10:37] <SpacenearUS> 03pb0ahx: Current flights: 03Pecan SSDV Tracker 10(5ab8)
[10:39] <pb0ahx> !dial Sab8
[10:39] <SpacenearUS> 03pb0ahx: Can't find a flight doc matching your query
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[10:40] <craag> !dial DL7AD-12
[10:40] <SpacenearUS> 03craag: Latest dials for 03DL7AD-12 145.300 MHz 10(5ab8): none
[10:40] <craag> pb0ahx: ^^
[10:42] <pb0ahx> craag, GM
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[11:37] <AndyEsser> http://www.esa.int/spaceinimages/Images/2016/03/3D-printed_antenna
[11:43] <gonzo_> first convincing use of 3d printing over milling/turning I've seen
[11:43] <gonzo_> though the copper plating is then the fun bit to achieve
[11:43] <gonzo_> could be fun in a shed
[11:45] <edmoore> we have a bit in our engine that would be violently difficult to turn or mill
[11:45] <edmoore> but is 3d printed
[11:45] <edmoore> lots of internal passages with funny geometries
[11:46] <SpeedEvil> I am reminded IIRC that some current US engines still use hand-brazing
[11:48] <edmoore> i'm sure many do
[11:48] <edmoore> they're 60s things
[11:48] <edmoore> when men were men and women were computresses
[11:48] <gonzo_> std milling I assume complicated parts would be made in sections. Suppose no reason why that 3d antenna could not have been cnc milled in two halves reasinably easilly
[11:49] <edmoore> where brazing nickel tubes together put hairs on your chest and if you already had them on your chest it moved them to your back and shoulders
[11:49] <gonzo_> I've trimmed my eyebrows a few times
[11:50] <gonzo_> planning to put a brazing hearth in my new shed
[12:36] <richardeoin> ooh ubseds reappeared
[12:36] <richardeoin> hmm adam's call need aprs equation things
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[12:51] <Strykar> Anyone using this GPS hat with another hat on the RPi3? https://store.uputronics.com/index.php?route=product/product&path=60_64&product_id=81
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[13:43] <SpacenearUS> New position from 03AGENA2 after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=AGENA2
[13:44] <Upu> hey Strykar
[13:44] <Upu> are you tyring to stack it ?
[13:45] <LunarMobile> Upu, the active GPS antenna that you have, is it like a generic thing, like if I'd ask around if someone can borrow me the antenna from his car or so for testing, will it work?
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[14:03] <AndyEsser> http://imgur.com/Q1QBlhP
[14:03] <AndyEsser> I need to stop messing around with the layout of this and actually get it to receive data...
[14:06] <craag> Where'll this be display and fed from?
[14:06] <AndyEsser> my laptop at launch, car, recovery etc
[14:06] <craag> fed from habitat?
[14:06] <AndyEsser> and either fed directly from SDR#, or will pull data from habitat
[14:06] <craag> cool
[14:06] <AndyEsser> that's what the Data Source line is about
[14:07] <AndyEsser> Direct is data received direcct on that system
[14:07] <craag> I see :)
[14:07] <AndyEsser> or Habitat to pull it from there :)
[14:07] <craag> need a timestamp on it
[14:07] <AndyEsser> On the data packet?
[14:07] <AndyEsser> Yea, was going to put a line in "Time since last update"
[14:07] <craag> to tell you how old the data you're looking at is
[14:07] <craag> yep exactly
[14:08] <craag> If you're switching between habitat and direct, bear in mind you might get packets out of order
[14:08] <AndyEsser> yea, I'm not sure I'll support direct switching in the program
[14:08] <AndyEsser> or just restart it in Habitat mode
[14:08] <AndyEsser> it'll be nicer to support switching over
[14:08] <AndyEsser> and switching payloads
[14:09] <craag> well the payload isn't going to change during a flight
[14:09] <AndyEsser> True, but you might want to start receiving data from another flight
[14:09] <AndyEsser> which I guess you could just restart with appropriate callsign specified
[14:09] <craag> But you could have it taking the udp output from fldigi, and the habitat feed, and using the latest data from each.
[14:09] <craag> s/each/either/
[14:10] <AndyEsser> Yea, that could work
[14:10] <edmoore> AndyEsser: add distance and bearing from the terminal (your car)
[14:10] <AndyEsser> I need to dig into the habitat docs
[14:10] <edmoore> will need a gps and compass on the carb obv but that's fine
[14:10] <AndyEsser> edmoore: was planning an app for my phone/tablet for that
[14:10] <AndyEsser> like daveake has
[14:10] <pb0ahx> !flights
[14:10] <SpacenearUS> 03pb0ahx: Current flights: 03Pecan SSDV Tracker 10(5ab8)
[14:10] <edmoore> or eeepc
[14:10] <edmoore> http://www.cusf.co.uk/images/tracker.png
[14:11] <edmoore> vintage 2007
[14:11] <AndyEsser> sexy UI
[14:11] <AndyEsser> :)
[14:11] <edmoore> long before habitat or spacenear.us were a glint in the milkman's eye
[14:11] <fsphil> I still have one of those. other than the battery it's pretty good
[14:11] <fsphil> and the tiny and difficult to use keyboard
[14:13] <edmoore> yes
[14:13] <edmoore> i remember that
[14:13] <edmoore> i wrote my master's thesis on an eeepc
[14:13] <edmoore> ... with a bluetooth apple keyboard
[14:14] <edmoore> it had enough chooch to just about run latex on it in <30s
[14:14] <edmoore> which is the boredom threshold
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[14:40] <SpacenearUS> New position from 03UBSEDS14 after 0310 hours silence - 12http://tracker.habhub.org/#!qm=All&q=UBSEDS14
[14:43] <craag> hmm battery is a bit low
[14:44] <craag> sunrise now I guess?
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[14:50] <AndyEsser> considering it's a single AA (I think someone said) it's done well!
[14:51] <craag> Yeah, interesting it recovers so well with temperature in the morning sun
[14:51] <AndyEsser> does it have a solar cell?
[14:51] <craag> http://www.bristol-seds.co.uk/hab/flight/2016/03/07/ubseds14.html
[14:51] <craag> no
[14:51] <AndyEsser> the entire payload is the weight of my battery...
[14:52] <AndyEsser> and I thought I'd done well finding a lightweight battery
[14:52] <edmoore> if an AA is lighter than your battery then i don't see how you think you could have done well at searching for a battery
[14:54] <AndyEsser> well I was thinking for mAh:weight ratio I'd done well - but looking at datasheet, that AA apparently provides about 3200 mAH
[14:54] <craag> the lithium AA is pretty much unmatched in energy density
[14:54] <craag> (afaik)
[14:54] <edmoore> yes
[14:55] <edmoore> the L91 is basically the default right answer for more habby situations than anything else
[14:55] <AndyEsser> also, I dislike the AA form factor and wanted a 'flat pack' :)
[14:55] <AndyEsser> but maybe switch to that AA
[14:55] <AndyEsser> hmm
[14:55] <craag> it's non-rechargeable AndyEsser
[14:55] <edmoore> make a flex pcb you can wrap around
[14:55] <edmoore> absorb all them rays
[14:55] <craag> special breed of lithium
[14:55] <AndyEsser> Do rechargeables typically have lower mAh?
[14:56] <craag> per weight, than the l91, yes.
[14:56] <AndyEsser> tbf - my batter is only 5 grams heavily, so I'm not too fussed :)
[14:56] <AndyEsser> battery*
[14:56] <AndyEsser> if I was making a pico - I'd be more concerned
[14:57] <craag> Yes, for pico lithium AA/AA is the default choice
[14:57] <craag> even some with solar have just done a diode-or kind of thing
[14:57] <craag> *AA/AAA
[14:58] <craag> For yours - far less critical in many ways
[14:58] <AndyEsser> I'm basically hoping I can make the PCB the same width/length of the battery so the two together combine a relatively small foot-print 'device' that's about 1.5/2cm thick
[14:58] <craag> sounds good :)
[14:58] <AndyEsser> although the coin cell is quite thick, unless I can find space on the 'front'
[15:02] <Strykar> Upu, hi, sorry work called. I am looking to stack it with this - http://www.dexterindustries.com/shop/grovepi-board/
[15:02] <edmoore> AndyEsser: similar to middle-right? https://www.flickr.com/photos/cuspaceflight/3887350096/in/album-72157621846323425/
[15:03] <AndyEsser> edmoore: not too dissimilar
[15:03] <AndyEsser> I am appalled at the foam cutting technique for that peli case :P
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[15:06] <edmoore> 'technique' is an optimistic choice of word
[15:06] <AndyEsser> my mind is soup atm - couldn't think of a better word
[15:06] <edmoore> anyone who makes stuff should consider the life-changing potential of these pass-through ratchets http://www.amazon.co.uk/Bahco-S140T-Push-Through-Socket-Set/dp/B004VLZ8KG
[15:06] <edmoore> great for really long bolts of studding
[15:06] <edmoore> or*
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[15:22] <Upu> hey Strykar I may have responded to you via email ?
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[15:24] <Strykar> Upu, may I pm you?
[15:24] <Upu> sure
[15:42] <LunarMobile> Upu did you read my Q too?
[15:42] <Upu> I didn't
[15:42] <Upu> repeat it pls
[15:44] <LunarMobile> Is the active GPS antenna in your shop a generic module, for example could I ask a friend if I could borrow his car GPS antenna for testing?
[15:51] <craag> LunarMobile: They're generic yes, the parts to check would be the voltage and current requirements
[15:51] <LunarMobile> Thanks :)
[15:51] <SpacenearUS> New vehicle on the map: 03car_chase - 12http://tracker.habhub.org/#!qm=All&q=car_chase
[15:51] <craag> An active antenna ublox board probably puts out 3.3V
[15:53] <LunarMobile> Yes
[15:55] <Upu> yes its generic
[15:55] <Upu> any active SMA will work
[16:04] <SpacenearUS> New vehicle on the map: 03X0 - 12http://tracker.habhub.org/#!qm=All&q=X0
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[16:11] <AndyEsser> so tempted to spend the weekend replacing my consumer unit and MCBs/RCBOs
[16:11] <AndyEsser> think my landlord might not appreciate that though
[16:13] <edmoore> so don't
[16:13] <edmoore> work on flight computer instead
[16:14] <AndyEsser> I already have flight computer plans
[16:14] <AndyEsser> as well as shooting bad guys in the face
[16:14] <edmoore> implement the plans this weekend in the time you were considering doing illegal work on your rented accomodation
[16:14] <edmoore> you and your landlord will be much happier
[16:15] <edmoore> you can do diy electrics when you own your house
[16:15] <edmoore> as i have done for the last month
[16:15] <edmoore> just replacing like with (better) like
[16:15] <edmoore> it's as boring as toenails
[16:15] <edmoore> electronics is much better
[16:15] <AndyEsser> Heh
[16:15] <edmoore> you can buy tools tho
[16:15] <AndyEsser> I once said electronics was more difficult that electrical to an electrician
[16:15] <edmoore> that's the nice thing about home diy
[16:15] <AndyEsser> he didn't like me
[16:16] <edmoore> that shiny makita stuff is cheaper than a carpenter-day
[16:16] <AndyEsser> speaking of which - I Should take my drill home now that I'm not making holes in the ceilings at work
[16:16] <edmoore> of course the experience may end being a lot more expensive
[16:16] <edmoore> you were right though
[16:16] <edmoore> i'm not sure why an electrician would find that controversial
[16:16] <LunarMobile> Thanks craag and Upu
[16:17] <AndyEsser> edmoore: I might've said it in a way... that suggested his job was easy?
[16:18] <edmoore> it probably isn't
[16:18] <edmoore> there is a lot more to it that understanding physics
[16:18] <edmoore> doing a nice job is a craft that takes experience that can be worth paying for
[16:19] <AndyEsser> when I worked on a number of distribution panels and what not for industrial and large residential projects at a previous job
[16:19] <AndyEsser> I was always amazed at how much nicer my boss made them :P
[16:19] <AndyEsser> although I found those oddly thereapuetic despite being repetitive work
[16:19] <AndyEsser> again - think it's the whole "doing something with your hands" thing
[16:19] <AndyEsser> vs just sitting on a PC
[16:19] <edmoore> yes
[16:20] <edmoore> it's fun to do
[16:20] <edmoore> for a wile
[16:20] <edmoore> and boring if you do it every day
[16:20] <edmoore> i enjoy welding
[16:20] <edmoore> i wouldn't want to be a shipbuilder on the clyde
[16:20] <edmoore> i enjoy making a nice cable harness
[16:20] <AndyEsser> ok ok - I get it
[16:20] <edmoore> but i wouldn't want to be a wireman
[16:20] <edmoore> i enjoy writing python
[16:20] <edmoore> but i'm pleased i didn't do computer science as my degree
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[16:21] <edmoore> i like routing a 128A 3-phase cable through a loft space in summer, in a masochistic way, like fighting an anaconda in a vietcong tunnel
[16:21] <edmoore> but i would die of exhaustion and waterloss throguh sweat if i had to do that for more than 2hrs
[16:21] <edmoore> you see
[16:21] <edmoore> variation is the piss of life
[16:22] <AndyEsser> ah well - I have to take apart the plumbing for another sink this evening- that'll satiate my "hands" desire for a bit
[16:23] <edmoore> sinks are never fun
[16:23] <AndyEsser> indeed
[16:23] <AndyEsser> the one I had to do the other week was fun, purely becuase it wasn't just a simple u-bend
[16:23] <AndyEsser> but the upstairs sink just needs the 'sump' clearing out I believe
[16:23] <AndyEsser> and then need to figure out why the dishwasher is tripping the main RCBO for the whole house
[16:23] <AndyEsser> fun times
[16:24] <AndyEsser> I should just be a normal annoying tenant and phone my landlord to get him to fix this lot
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[16:30] <Lunar_LanderU> damn the LD1117V33 gets hot on 12V
[16:30] <Lunar_LanderU> no wonder :D
[16:30] <edmoore> what current Lunar_LanderU ?
[16:31] <Lunar_LanderU> 140mA
[16:32] <edmoore> lol
[16:32] <edmoore> yes that is quite a lot of power to dissipate
[16:32] <Lunar_LanderU> yeah
[16:32] <edmoore> i assume this isn't for flight hardware then
[16:33] <Lunar_LanderU> no, for testing first of all
[16:33] <AndyEsser> testing what?
[16:33] <AndyEsser> though
[16:33] <Lunar_LanderU> all the programs for flight
[16:33] <AndyEsser> so this is flight hardware?
[16:33] <Lunar_LanderU> and then for flight itself I have to see, maybe use a different regulator or something
[16:33] <mattbrejza> so flight is 4.5V pack but youre using 12V for testing..?
[16:34] <Lunar_LanderU> no, flight is planned to use 12 V too
[16:34] <AndyEsser> Lunar_LanderU: surely you want to test with the exact same thing as you'll be sending up?
[16:34] <edmoore> AndyEsser: no and hush pls
[16:34] <mattbrejza> why 12V?
[16:34] <edmoore> Lunar_LanderU: you definitely do not want to be linearly regulating for 12V to 3V3 in flight
[16:34] <Lunar_LanderU> because we want to fly that CPU fan again which needs 12 V
[16:34] <edmoore> that's madness
[16:34] <Lunar_LanderU> yeah
[16:35] <edmoore> do it properly with a switch-mode
[16:35] <mattbrejza> whats the fan for? to keep the regulator cool?
[16:35] <edmoore> lol
[16:35] <Lunar_LanderU> :D
[16:35] <Lunar_LanderU> the fan is part of the temperature and humidity sensing
[16:35] <mattbrejza> oh right
[16:35] <Lunar_LanderU> last time we had the same set of sensors in a tube ventilated by the moving balloon and the other one had the fan
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[16:36] <SpacenearUS> New vehicle on the map: 03CHANGEME - 12http://tracker.habhub.org/#!qm=All&q=CHANGEME
[16:36] <Lunar_LanderU> um and I have to make one admission
[16:36] <Lunar_LanderU> we did have one LD1117V33 on the last flight connected to 12 V
[16:37] <Lunar_LanderU> (sorry for the waste of power *ducks*)
[16:37] <edmoore> what package is it?
[16:37] <mattbrejza> well was that running a RTC or a rpi?
[16:37] <Lunar_LanderU> on the flight it was an TO-220
[16:37] <Lunar_LanderU> now I have an SOT-223
[16:38] <mattbrejza> you could always tap off 6V for the electronics. But since you have the time might as well go smps so that you make better use of the battery
[16:38] <Lunar_LanderU> it was powering nothing, we had built up a power supply board but turned out that the 3.3V regulator was connected to nothing
[16:38] <Lunar_LanderU> yeah
[16:38] <mattbrejza> or 6V and boost to 12V
[16:38] <Lunar_LanderU> I completely agree
[16:38] <edmoore> well if it was powering nothing last time then it wasn't dissipating any power was it
[16:39] <Lunar_LanderU> true
[16:39] <edmoore> of course it's true
[16:39] <edmoore> jesus
[16:39] <Lunar_LanderU> yeah
[16:39] <edmoore> so this time you have a sot223
[16:39] <Lunar_LanderU> yes
[16:39] <edmoore> you have 12V in and 3v3 out
[16:39] <Lunar_LanderU> yes
[16:39] <edmoore> 0.14A
[16:39] <Lunar_LanderU> yes
[16:39] <edmoore> so it's dissipating (12-3.3)*0.14 = 1.2W
[16:39] <Lunar_LanderU> and it is powering an AVR, an MTX2, ublox and some sensors now
[16:40] <Lunar_LanderU> yes
[16:41] <Lunar_LanderU> SMPS will be much better
[16:41] <edmoore> so they usually dissipate their power through a large area of copper pad underneath the big tab
[16:41] <Lunar_LanderU> yes
[16:41] <Lunar_LanderU> I got one there
[16:41] <edmoore> yes ok i won't even work through the sums with you that will conclude that trying to get rid of 1.2W from a tiny package at 1% sea level pressure is insane and will burn out
[16:41] <edmoore> it's just insane
[16:41] <edmoore> don't do it OBVIOUSLY
[16:42] <edmoore> because it will OBVIOUSLY burn out
[16:42] <Lunar_LanderU> yes
[16:42] <Lunar_LanderU> I agree with that
[16:42] <edmoore> right
[16:42] <edmoore> then we're cool
[16:42] <Lunar_LanderU> yes
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[16:42] <Lunar_LanderU> thank you
[16:44] <edmoore> don't thank me
[16:44] <edmoore> just do the sums
[16:44] <Lunar_LanderU> yes
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[16:46] <edmoore> sums let you do things
[16:46] <edmoore> and tell you that other things wont work
[16:46] <Lunar_LanderU> yes
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[17:00] <Laurenceb_> ubuntu: http://pastebin.com/nxSuwjqv
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[17:22] <DL1SGP> greetings and nice afternoon/evening everyone
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[17:31] <DL1SGP> hi SA6BSS-Mike :)
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[17:43] <KZNHAB> hello group
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[18:06] <tweetBot> @RishworthS: @bsaboarding https://t.co/tYym81Vlh9
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[20:31] <jarod> https://www.flightradar24.com/ new site... tip: delete cookies and relogin ... check out the new 3D option
[20:32] <lz1dev> oh nice
[20:32] <lz1dev> they are using my day/night overlay
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[20:37] <R34lB0rg> lol, vertical speed only with subscription
[20:39] <SpacenearUS> New position from 03KD9DBI-11 after 033 days silence - 12http://tracker.habhub.org/#!qm=All&q=KD9DBI-11
[20:39] <lz1dev> full screen requires subscription ?
[20:41] <lz1dev> jarod: how do i go 3d?
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[20:44] <SpacenearUS> New vehicle on the map: 03Wa0kio_chase - 12http://tracker.habhub.org/#!qm=All&q=Wa0kio_chase
[20:51] <SM0ULC-Reb> ha, 3d was really cool!
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[21:41] <Stephan> can someone tell me what is the record of HAB flight in terms of altitude in km?
[21:41] <Stephan> cant find any info...
[21:41] <Stephan> not mention Redbull and Google... flights
[21:43] <lz1dev> Stephan: http://www.arhab.org/
[21:43] <lz1dev> 145590 ft
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[21:52] <Stephan> thanks
[21:53] <Stephan> need to check it in km.
[21:53] <Stephan> who did it ?
[21:53] <michal_f> according to this, my first and only flight is no. 55
[21:53] <Stephan> do you have any link to any articles about it?
[21:53] <michal_f> 121840ft
[21:53] <daveake> Those are amateur latex flights, and not the absolute record
[21:54] <michal_f> does anyone have python code to compute CRC checksum ?
[21:54] <daveake> Highest is this one http://www.tag-connect.com/TC2030-IDC I believe
[21:54] <Stephan> yes I mean by using any of the probably 3kg ones
[21:54] <daveake> sorry cut paste error
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[21:54] <daveake> http://japandailypress.com/japanese-unmanned-balloon-sets-altitude-record-above-hokkaido-2336403/
[21:55] <Stephan> thanks
[21:55] <daveake> The 3kg balloons aren't likely to beat those records on arhab
[21:55] <michal_f> 53,700 meters... way above amateur
[21:56] <Stephan> yes I can see
[21:56] <daveake> in more ways than one
[21:56] <Stephan> I'm looking for the latex records
[21:56] <daveake> arhab then
[21:56] <Stephan> this ones are low pressure
[21:56] <Stephan> too much in cost for meeee
[21:56] <daveake> They're all 1600g latex with H2
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[21:57] <daveake> and all with <= 50g payloads
[21:57] <Stephan> Dave seriously? 50km+
[21:57] <Stephan> on 1600kg latex one/
[21:57] <Stephan> ?
[21:57] <daveake> ?
[21:57] <daveake> max on arhab is 44.something iirc
[21:58] <mattbrejza> i reckon you could get 50km with a latex balloon if you could control the balloon making process?
[21:58] <lz1dev> 44km
[21:58] <Stephan> any article ?
[21:58] <daveake> you won't get 50km with a standard latex balloon
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[21:58] <daveake> not without lying
[21:58] <lz1dev> :)
[21:58] <Stephan> hahah
[21:58] <Stephan> of course
[21:58] <daveake> mattbrejza yeah a custom balloon perhaps
[21:58] <lz1dev> you need very light tracker, and luck
[21:58] <mattbrejza> well i didnt really mean standard
[21:58] <lz1dev> basically
[21:58] <Stephan> Dave I'm looking in a latex fair competition.
[21:59] <mattbrejza> what is the pressure difference between 44km and 50km?
[21:59] <mattbrejza> (perhaps i should have asked that before making wild claims)
[22:00] <Stephan> >>> any articles on ''proven'' records with latex balloons?
[22:00] <daveake> yeah for altitude the recipe seems to be a 1600g hwoyee (special edition), H2, light payload, luck, and more luck
[22:00] <Lunar_Lander> 0.9 mbar mattbrejza
[22:00] <Stephan> Dave so 3000g will not make any difference>
[22:00] <Stephan> ?
[22:00] <daveake> all those on the arhab page will have gps data to back them up
[22:00] <daveake> doubtful
[22:00] <mattbrejza> i meant as a %age
[22:01] <Stephan> I was thinking to take Pi in the Sky
[22:01] <Stephan> ;)
[22:01] <Stephan> on my 100g flight
[22:01] <daveake> thought you wanted high altitude :/
[22:01] <Stephan> this will be too heavy>
[22:01] <Stephan> ?
[22:02] <Stephan> so what you recommend Dave?
[22:02] <Stephan> as payload?
[22:02] <Stephan> 50g max?
[22:03] <daveake> well, lighter is better ofc
[22:03] <daveake> you might lose 100m say altitude by using 100g rather than 50g
[22:04] <daveake> high altitude pressure varies daily so that's a possible optimisation too
[22:04] <Stephan> I'm looking for any suggestions and articles. Any links?
[22:05] <daveake> What I said above
[22:05] <Stephan> thanks all
[22:06] <Stephan> Dave, thanks
[22:06] <Stephan> last thing what is special edition hwoyee>
[22:06] <Stephan> ?
[22:06] <daveake> :-)
[22:06] <daveake> jesting
[22:06] <Stephan> whats the difference
[22:06] <daveake> they vary so you take pot luck
[22:06] <Stephan> ok
[22:06] <Stephan> aahhhaha
[22:07] <Lunar_Lander> like QC failed?
[22:07] <daveake> What QC ?
[22:07] <Lunar_Lander> quality control
[22:07] <Vaizki> :D
[22:07] <daveake> Yes, I mean "so you think they have QC?"
[22:07] <Stephan> I think 4-6 on one go :D will do me
[22:07] <Vaizki> I'm sure daveake knows..
[22:07] <Lunar_Lander> xD
[22:08] <Vaizki> hmm so I started uploading data to FR24 and they gave me a top-tier account for free? nice
[22:08] <daveake> yeah
[22:08] <Vaizki> I have to put this on a RasPi out on the island
[22:09] <Stephan> thanks all by for now
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[00:00] --- Fri Mar 18 2016