They used Parachute with extremely thick ropes but also a very effective brake
system.
once when by a 700 mph run this rope collapsed, Andy stopped 1.4 miles later -
not to bad if you got a 10 t heavy car.
The weight of this system was very high - for the most of our racers too high.
Craigs parachute never failed in 1996 and 97 - the failure you wrote was in
1964 (Threewheeler) aand 1965 (Sonic 1).
See ya
Pork Pie
"W S Potter" <wester6935@attbi.com> schrieb:
> Who was at Black Rock when Richard Noble and Andy Green ran? What did they
> do to stop? Can we learn something from those cars? Noble used the best
> Great Britain had to offer to solve his problems with both those cars. I
> don't know how many runs Green made but it was an incredible number just
> inching up to the sound barrier. Whatever techniques he used, they worked.
>
> I'm just guessing but from my reading...
> Jet cars accelerate at a much higher rate. They are usually timed after a
> shorter distance allowing for a longer area to slow. I'm not familiar with
> the driving techniques but they could use engine braking, like an airplane
> does, to slow quickly to a manageable speed.
>
> Breedlove used parachutes (which failed) when he ended up in a brine pond
> and he had clipped a telephone pole to try to slow the "wingless airplane".
>
> Wes
>
> on 10/27/02 3:52 AM, Dave Dahlgren at ddahlgren@snet.net wrote:
>
> > This is something that i talked to Bob Stroud about this summer in detail.
> >
> > My real question as well is how do/did they stop the jet and rocket cars
>that
> > are heavier and faster??
> >
> > Dave
> > "Albaugh, Neil" wrote:
> >>
> >> Mayf;
> >>
> >
> >>
> >> Parachute tether line seems to have similar requirements to climbing rope--
> >> it needs to stretch and absorb energy. The longer the tether, the more the
> >> stretch and the lower the "G" forces and tensile loads. It may also be
> >> possible to pay out the line dynamically to absorb lots more energy--
> >> perhaps unwinding the tether line from something like a drum that has a
> >> brake. The additional drag of the brake as the tether line pulled off the
> >> drum might be one approach to reducing the "Yank" force on a parachute that
> >> is deployed at high speed.
> >>
> >
> >> Regards, Neil Tucson, AZ
>
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