This is basically the same as attaching directly to the tree-saver with no snatch block involved. Since the line is static between the trees, the winch would be required to pull the full load of the vehicle. If the end of the winch cable attached back to a tree instead of the vehicle, as pictured below, the snatch block provides no mechanical advantage. You could anchor directly to the tree-saver with a recovery shackle instead of a snatch block, but using the snatch block has the advantage of reducing the strain on your winch. This is one of the most common recovery techniques with a winch and snatch block. While the snatch block reduces the pulling force required by the winch in this configuration, note that the anchor (the tree in this case) is still bearing the entire load of the vehicle. The winch cable extends from the winch on the vehicle through the snatch block and back to a secure recovery point on the vehicle. It’s not quite double the force, because of friction added by the snatch block itself. In the case below (Technique #1), the snatch block is used to roughly double the pulling force exerted by the winch in a self-recovery situation where a tree is used as an anchor. Using a Snatch Block to Increase Winch Pulling ForceĪ snatch block bolsters the pulling force of the winch by providing mechanical advantage, a function of passing the winch cable around the snatch block’s pulley and back to the vehicle. The physics of using winch snatch blocks can be a bit counterintuitive, but we’ll try to explain where it’s easy to make errors in these common scenarios. Here, we’ll cover several common techniques. Snatch Blocks can be used in a number of different scenarios and configurations in off-road recovery.
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