I'd agree as well. I have no math to back it up, but I spent a few years in the 82nd Airborne Division and have made over 30 military jumps. The first thing that came to my mind was that the chute would never slow the feller down enough to enable him to survive the fall. Our chutes resulted in a falling speed that, even for an average sized 18 year old soldier like me, would result in moderate to severe injuries if the landing was executed incorrectly or on bad terrain. One of my buddies broke his ankle in several places landing on un-even ground. the chutes were designed to get us to the ground as quickly as possible without dying :) For that much weight the chute just would not be enough. He'd need one designed for a vehicle, I'd think.<br>
<br><div class="gmail_quote">On Mon, Mar 25, 2013 at 1:58 PM, Sven Lugar <span dir="ltr"><<a href="mailto:vikingjarl@gmail.com" target="_blank">vikingjarl@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
I have to concur with that assessment & the remains of the chute
would be blown over the entire length of the ringworld. Even a HALO
jump on Earth you spend a goodly time wondering if you are even
going to hit the continent you are aiming at so shreds of silk would
be really flying.<br>
<br>
Sköl,<br>
Sven<div><div class="h5"><br>
<br>
<div>On 3/25/2013 10:44 AM, Styopa wrote:<br>
</div>
<blockquote type="cite">T-7s had a weight limit of ~360-400 lbs, claiming they
could reliably land 2 individuals, but those are WW2-size guys, ie
~150-180lbs each.
<div><br>
</div>
<div><br>
</div>
<div>Of course, parachutes depend on gravity. As a Ringworld
ostensibly generates gravity through centrifugal (centripetal)
force the question becomes - if the troll can generate enough
force on departure to counteract this rotation (ok that's a lot
- <a href="http://www.alcyone.com/max/reference/scifi/ringworld.html" target="_blank">http://www.alcyone.com/max/reference/scifi/ringworld.html</a>
) he'd just HANG there, not falling at all.</div>
<div><br>
</div>
<div>Whatever velocity he can generate on takeoff is going to
reduce his falling speed.</div>
<div><br>
</div>
<div>But no, siz 37 = about 650kg. The iron plate for that
individual would be what, at least another 200kg, call it a
total of 800kg. Assuming no substantial start velocity as
above, a 2000-lb weight on a WW2 paratrooper's chute means it
would be shredded almost instantly and the troll would end up a
troll-colored smear in a troll-shaped crater.</div>
<div><br>
</div>
<div>Assuming that his density is about 1.1, surface area with
everything is (generously) 3sqm, his terminal velocity would be
about 70 m/s in air. He's going to hit at nearly 160 mph.</div>
<div><br>
</div>
<div>He'd reach this in about 8 seconds - call it 10, with the
time for the chute to shred - after which he'd only have fallen
only about 325m. From that point on he's not accelerating any
more, then it's just falling and screaming.</div>
<div><br>
</div>
<div>He has 800,000m to fall.</div>
<div><br>
</div>
<div>He'd fall for about 3 minutes to a spectacular splat.</div>
<div><br>
</div>
<div>At least, that's my guess.<br>
<br>
<div class="gmail_quote">On Mon, Mar 25, 2013 at 12:28 PM, Leon
Kirshtein <span dir="ltr"><<a href="mailto:leonbk@yahoo.com" target="_blank">leonbk@yahoo.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto">
<div>
<div>
<blockquote type="cite">
<div>
<p dir="ltr">I have a question which may seem a
*trifle* unusual. But I think that I'm more
likely to get an answer from this list than
anywhere else.</p>
<p dir="ltr">Could an eleven-foot-tall SIZ 37
great troll in iron platemail, carrying a troll
maul, a greatsword, and a backpack, using a
standard WWII paratrooper parachute,
successfully parachute to a landing if he
started from from 500 miles up the Spill
Mountains (i. e. the rim) of the Ringworld?</p>
<p dir="ltr">Also, what would be the effects and
strain of a 500-mile parachute jump, both on the
troll and the parachute? I've never parachuted
at all, so I don't know. It seems to me that the
seams and straps might break?</p>
<p dir="ltr">And did they use silk or nylon for
parachutes back then?</p>
<p dir="ltr">Thanks!</p>
</div>
</blockquote>
</div>
</div>
<blockquote type="cite">
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