Re: Bow Wench Capacity To Boat Weight
Look at it this way. You can probably move a pallet or large box around by hooking a chain and clevis to it, and pulling it. If it is a large enough box, you probably couldn't lift it, yet you could still pull it. For 900 pounds, a 600 pound winch would work fine.
But, if it is not, you just need a pulley. Attach the bow hook to the pulley, and the end of the line to the winch post. Put pulley between winch and attach point on winch post. There, you have just used mechanical advantage. Second grade physics.