Have never used the Dyneema rope on a winch, but I have used dynamic climbing ropes a lot when doing roping in the Army.
One of the major drawbacks with synthetic ropes is dirt and in particular sand. Once you have this stuff in between the strands of the synthetic rope it's life is significantly reduced. The stretching, pulling and twisting cuts the smaller fibres in the rope, reducing it's strength and safety.
|Dallan Tha Bossman wrote:
|...however as a popular mythbusters episode showed where they purposely tried to reproduce the myth of a broken wire under extreme tension cutting someone in half, they couldnt do it. The pig they used never even had the outer skin cut... bruised yes, but lethal? Not in their tests (and imo, they did a good job with this one). |
I remember seeing that episode Dallan, and as you say, they did their best to produce a result. Pig skin is significantly tougher than human skin, especially after it's been hung in a cool room for a few days...so I think that the result of their testing was flawed for that reason. Had they used something with an "outer coating" that more approximated people skin I think we might well have seen a very different result. I don't think they would have cut anything in half though.
I have seen the end result of steel cables snapping and hitting trees etc, and there is no way I would want one hitting me...bruises would be the least problem. Even a synthetic rope would do nasty things to a man...look at the damage a whip does.