Recovery - The Fundamentals

[the evil twin]

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So, say I'm bogged deep, and pulling up hill, doing a double line pull. Say, just as a number, with the double line pull, weight on the winch is 5t. Does that mean weight on the pulley is 10t, and as such, the weight on the shackle holding the pulley is also 10t? I only ask, because I haven't seen too many 10t shackles around.

1. Don't try and pull a deeply mired vehicle (uphill, downhill or level) unless you have done everything you can to reduce the effect of the Bog and/or stiction IE some shovel work.
2. If you have 5 ton on the winch on a double line pull then you must have a Unimog on the other end
3. You don't need a 10 ton shackle for recovery work. Shackles are rated to Lifting Standards and depending on grade, a 10 ton shackle will be good for 40 to 70 tons, weigh about 10 KG and be the size of a large dinner plate.

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Also, if I need to winch a car behind me up a hill, but there is no room to turn around, any drawbacks to hooking the winch to a pulley on an anchor say, to my front left, and from that pulley back to their car - provided I can get the rope to their car without hitting mine or anything in the process?

You will find that a very difficult evolution in a practical world IE if there isn't room to turn then there usually isn't room or ideally placed anchor points to rig the redirects required

In a theoretical world you can do it as it is no different to a redircet but in practice don't forget you will need to allow for a friction loss (or load depending) of 10% for each snatch block you use