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Old 04-21-2017, 08:42 PM   #31
foggysail
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City: Ashland, MA
Vessel Model: 1990 Silverton 40 aftcabin
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I am not going to re-engineer/design my davit crane which satisfies all my present needs and requirements. I looked at Dyneema cord just to see how it compares to wire rope; gave up, too many numerical conversions. Dymeema is specified as working loads in kilonewtons, wire rope (at least as far as I got) is specified in breaking strength in pounds. Dyneema uses metric system that I wish was universal while the wire rope I found uses the English or Imperial system.

I have no doubt that Dymeema is equal or stronger than wire rope on a weight bases but because I didn't want to spend the time and effort making conversions I doubt it can compare to wire of equal diameter. This is as far as I intend to go on Dyneema use and applications vs wire rope of SS or galvanized steel rope.
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