On Aug 13, 10:03*pm, Eric Greenwell wrote:
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Does anyone know the force required to break those ropes; for example,
were the ropes tested afterwards for breaking strength?
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The weakest point is where the problem is, and that is often the knot
not the rope unless the rope is old and tatty.

However, the breaking strength of ropes sold for marine applications
is tested and known, and some kinds of rope (probably not the best for
tie-down applications) are very, very strong.