Choosing a winch

In order to ensure the correct winch selection and correct method of use, we have to take in account somes criterias:
faillure to select correct winch and incorrect operation can potentially reduce the life cycle of our winch and result in premature faillure.
Winches used under certain conditions i.e. Salvage, recovery and off road applications will require a winch high rated winch than that of less frequently used winch.
selection of winch capacity for loading needs to be careffuly considered. It should be powerful enough to pull our charge overcoming the resistance caused by obstacles such as moving gradients, mud, sand or stone.
When choosing a winch we should know the maximum effort that the winch can exert on a single line on the first layer of the winch drum.As the layers of cable build up on the winch drum, the overall cable speed increases, however the rated line pull decreases at the same rate.
I think by using snatch block to obtain a double line pull we can in effect almost double the pulling capacity of our winch, whilst approximately halving the overall recovery speed.