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Old November 28th 07, 01:25 PM posted to rec.aviation.soaring
Martin Gregorie[_1_]
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Default New winch height record

Bill Daniels wrote:

The payoff for multiple durms is when you use very long cables (ropes?)
When retrieve time becomes a large part of the time budget, it's better to
be pulling a lot of ropes back at one time. If you are using a 3000 meter
runway, 4, 6 or even 8 drums really do make sense.

Yes, I can see that - I'm used to 1000 m and was talking from experience
at that length.

However, I suspect my other point still holds with a lot of drums, that
once you get up towards 20 launches an hour the readiness of staged
gliders to accept a launch starts to become the critical factor.


For short runways, a single drum and a retrieve winch is probably
unbeatable.

I know about them but have never seen one in action. How long can the
run be before this becomes impractical?


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