Burst main sheet:
If your main sheet bursts or the shackle breaks and the tackle gets away, keep the boat as near the wind as possible. Then slack up on the weather topping lift until you can reach the bight. Get this inboard and aft, and haul on it easily, slacking down the throat of the sail at the same time; then the peak. If you have only one lift rove, slack down the throat, and try to get a line on the boom, as far out as possible. If this won’t work, cut off the hoops, unship the heel of the boom and run it inboard. It is a very dangerous situation if any sea is on, and requires skill and courage to master it.