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Or the gondola could fall down the same rope it went up.<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/04/2012 09:53 AM, Lee von Kraus
wrote:<br>
</div>
<blockquote
cite="mid:CANtjha26L6CcsPa_6OpBkpjwuPb0v6SechGLQKLopqM+w9uviw@mail.gmail.com"
type="cite">the website says the helikites can go up "thousands"
of feet, not sure how many thousands though, but I guess at least
more than 2000 if their using the word correctly. <br>
<br>
You're right about all that cable weight weighing things down too
much. So it might be best to have a space-elevator-like gondola
(as suggested previously by Matt) thing that can climb up the
single rope that's anchoring the helikite to the ground. The
gondola can be powered by a laser from the ground (although I'm
not sure how far a reasonably sized laser can shoot power). That
gondola would drive the capsule up to the helikite and then
'throw' the capsule off and let it fall to the ground where we
could have some sort of cushion to catch it. The capsules could
have fins on them to better ensure that they fall straight down <br>
<br>
As the fallen capsule is being retrieved the gondola would already
be on its way back down to get the same, or another capsule. The
system wouldn't be too speedy but would still be a useful tool,
I'd imagine the demand for usage would be pretty high from schools
and amateur scientists that can't afford other micro-G options.<br>
<br>
<br>
<br>
<br>
<div class="gmail_quote">On Thu, Oct 4, 2012 at 7:29 AM, Jerry
Isdale <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:jerry@mauimakers.com" target="_blank">jerry@mauimakers.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Depending on how high you go
and the kg/m mass of the cable, it is possible that the
weight of the 2x length of cable could be more than the
weight of the winch.
<div>using this kevlar rope as a guide...</div>
<div><a moz-do-not-send="true"
href="http://www.pelicanrope.com/kevlar12strandrope.html"
target="_blank">http://www.pelicanrope.com/kevlar12strandrope.html</a></div>
<div>say we pick the 7/16", 15,000lb tensile strength rope
at 5lbs/100ft. ('cause thats an easy weight)</div>
<div>a 1,000ft length will weigh... 50lbs?</div>
<div><br>
</div>
<div>1000 ft will not give much free fall time. Parabolic
flights are on the order of 8000ft deltas ...400lbs</div>
<div>Although rolling all that cable up into the helikite
would require a lot of space/big spool.</div>
<div>
<div class="im"><br>
<div>
<div style="word-wrap:break-word"><span
style="text-indent:0px;letter-spacing:normal;font-variant:normal;font-style:normal;font-weight:normal;line-height:normal;border-collapse:separate;text-transform:none;font-size:medium;white-space:normal;font-family:Helvetica;word-spacing:0px">
<div style="word-wrap:break-word">
Jerry Isdale<br>
<a moz-do-not-send="true"
href="http://MauiMakers.com" target="_blank">http://MauiMakers.com</a></div>
<div style="word-wrap:break-word"><a
moz-do-not-send="true"
href="http://www.mauimakers.com/blog/thursday-public-meeting/"
target="_blank">http://www.mauimakers.com/blog/thursday-public-meeting/</a></div>
</span></div>
</div>
<br>
</div>
<div class="im">
<div>
<div>On Oct 3, 2012, at 5:04 AM, Lee von Kraus wrote:</div>
<br>
<blockquote type="cite">The best way to maximize the
allowable experimental capsule weight would be to<u>
have all the motor mechanisms on the ground </u>as
shown in the attached figure. That way the only
mechanism, other than the capsule, that needs to be
carried by the helikite is a pulley (and the weight
of the capsule line). <br>
<br>
<br>
<br>
<div class="gmail_quote">On Wed, Oct 3, 2012 at
10:42 AM, Lee von Kraus <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:leevonk@gmail.com"
target="_blank">leevonk@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">
Here are some useful excerpts:<br>
"<br>
The 10 cubic metre Skyhook Helikite is able to
fly to thousands of feet in winds up to 50 mph
lifting a payload of 5kg.<br>
<br>
Helikites are designed for foul weather
deployment and foul weather flight. Even the
largest Skyhook Helikites can be launched and
retrieved in all the winds that they can fly in.
So deployment and flight can occur safely in
winds up to 50 or 60 mph.<br>
<br>
The new Cased Helikite Aerostat Maintainable
Platform (CHAMP) (see products section) allows
the deployment of a 10 cubic metre Skyhook
Helikite within 30 minutes. The unique part of
the CHAMP is that it also includes an excellent
Helibase with top cover thus also creating a
permanent, safe base for the Helikite - not just
a minimal launch platform.<br>
<br>
Helikites can even be launched and recovered
remotely - with no people present at all. They
are simply winched off or onto the Helibase. <br>
<div>
<div>"<br>
<br>
<br>
<div class="gmail_quote">On Wed, Oct 3, 2012
at 10:37 AM, Lee von Kraus <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:leevonk@gmail.com"
target="_blank">leevonk@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">here
is a link better describing the
advantages of helikites:<br>
<br>
<a moz-do-not-send="true"
href="http://www.allsopp.co.uk/index.php?mod=page&id_pag=24"
target="_blank">http://www.allsopp.co.uk/index.php?mod=page&id_pag=24</a>
<div>
<div><br>
<br>
<br>
</div>
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