On Tue, 02 Jul 2002 13:49:35 -0700, Pierce Nichols
<[EMAIL PROTECTED]> wrote:
>>Drag *killed* me. It didn't even make a decent sounding rocket.
>
> Of course it did.
Trust me, it didn't. It reached maybe 60 km.
I was using low thrust engines and a really squat vehicle. I also had
a bug that counted the second stage twice in computing mass. But
fixing that hasn't made that much difference - I'm still only getting
about 500 km out of it. Dave M tells me my CD is too high, but I'm
waiting on some numbers from him before I start over again.
> The concept is overall way cool -- here's a launcher that's small
>enough to put all of vehicle, support gear, and propellant on a single
>trailer small enough to tow behind my truck with room to spare. Of course,
>it has ASAT weapon written all over it -- trade some of your fuel for ball
>bearings and a dispersal charge...
Well, if Air Force Intelligence wasn't reading the list before, they
are now (assuming FBI/NSA cross-decks the take). Hi guys. Remember
how you needed a threat demonstrator to sell SMV to the Generals...?
> Remember that fooling around with your aspect ratio also affects
>your structural fraction. The higher your aspect ratio, the more material
>you need to wrap around your fuel.
That's all accounted for. The formula for calculating the tank mass
has a term for aspect ratio.
-R
--
"Sutton is the beginning of wisdom -
but only the beginning."
-- Jeff Greason
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