This is something that i talked to Bob Stroud about this summer in detail. His
answer is that it would not work. I was told it was too big too heavy and really
did not describe the problem. He did seem very sincere and we talked about it
for about a half hour or so. I had only asked that if i made a prototype and it
wa tested and proved successful that i ended up on the patent if it was
patenable and got some financial consideration in the sales of them which i
suspect would be very limited. To me this was on of the most simple and elegant
answers to the problem. It is the same way you can catch a 1000 fish on 100 lb
line... A big reel with a drag on it to absorb the energy and keep the forces
manageable. At this point i am ready to do two things with the idea. Either work
with another company which is preferred for insurance and liability issues or
second put it in the public domain which is in my mind the more noble and
honorable thing to do if it helps people in the LSR world.... 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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