Compressed gas needs to be in a cylinder that won't burst from the compression, which makes it heavy, yeah? From a pounds-per-dollar-per-foot perspective, you'd be better off launching a balloon from a balloon :)<div>
<br></div><div>--S<br><br><div class="gmail_quote">On Tue, Jun 15, 2010 at 2:59 PM, Christie Dudley <span dir="ltr"><<a href="mailto:longobord@gmail.com">longobord@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Hm. People have been talking about a traditional "rockoon" where you launch a rocket from a balloon, but I've been thinking a lot about launching balloons from rockets. <div><br></div><div>What I'm thinking would be that at 11K' you'd be able to start with a balloon that has a negative buoyancy at sea level, wouldn't you? Since your envelope would be much smaller (not having to expand up to 11K), you theoretically would be able to go much, much higher, as the growth is non-linear.</div>
<div><br></div><div>What you'd need to be able to launch, though, is all the gas you need compressed, with a mechanism to release the gas into the envelope (quickly!) and release the canister when it's been emptied. </div>
<div><br></div><div>So am I totally off my nut?</div><div><br></div><div>Christie<br clear="all">_______<br>"Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence." -- Albert Einstein<div>
<div></div><div class="h5"><br>
<br><br><div class="gmail_quote">On Tue, Jun 15, 2010 at 12:38 PM, Erik Ebert <span dir="ltr"><<a href="mailto:eebert@gmail.com" target="_blank">eebert@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
This might conflict with your night balloon launch, but if anybody is<br>
interested in coming out and watching (or participating in) our club's<br>
next launch, it's coming up this weekend (June 18-20) out at Black<br>
Rock: <a href="http://www.aeropac.org" target="_blank">www.aeropac.org</a><br>
<br>
If you've never been out to Black Rock before, please read the Black<br>
Rock section of the website. We supply porta-potties, everything else<br>
is up to you. Sunscreen and lots of water are musts. It's the same<br>
general area as Burning Man, but a couple of miles further along the<br>
playa. GPS coordinates are on the website.<br>
<br>
<br>
No 27k for me this time, but I will be sending my workhorse ARLISS<br>
(<a href="http://www.arliss.org" target="_blank">www.arliss.org</a>) payload rocket up to 11k or so. I know it's not<br>
100k, but if anybody has a payload they want to send up, the space is<br>
available. The payload compartment is 6" diameter by 10" long, and<br>
will be enclosed within the rocket for the up part of the flight.<br>
You supply the parachute and tracking. Once I dump you out at 11k,<br>
you are on your own.<br>
<br>
If nobody has a payload they want to send up, I will revert to the<br>
traditional payload of Guinness.<br>
<br>
<br>
The next launch after that is August 6-8. Rumor has it there may be a<br>
couple of rockoon groups showing up to that one.<br>
<br>
<br>
Hope to see some of you this weekend!<br>
<br>
-- Erik<br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Shannon Lee<br>(503) 539-3700<br><br>"Any sufficiently analyzed magic is indistinguishable from science."<br>
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