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Old October 20th 11, 03:38 AM posted to rec.aviation.soaring
Steve Leonard[_2_]
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Default Cadillac commercial accident?

On Oct 19, 11:28*am, Mike the Strike wrote:

A steep climb on a short rope attached to the CG hook will likely
exceed the weak-link strength (1,000 pounds?) long before you get to
200 feet.

Mike-


Mike, how is the load on the rope higher if the rope is short than it
is if the rope is long,as you propose? Answer: It isn't. Angle of
attack (lift) and speed determine line tension during the climb.

The difference in the long rope and a short rope is that if you assume
the same deck angle for the airplane, you get to the critical back
release angle at a much lower altitude on a short rope than you do on
a long rope. Same climb rate with the same plane at the same speed
gives the same line tension on a rope that is 200 feet long or 2000
feet long. You just hit max altitude much faster on the shorter rope.

Steve Leonard