D&T Online: Mechanisms information

`Mechanisms: The Windlass`
	`The windlass is a means of converting rotary motion to linear motion, usually with some mechanical advantage. Essentially a class 1 lever, the effort is applied to the handle of the crank, the fulcrum is the centre of the drum, and the load is applied to the rope. The mechanical advantage is approximately the length of the crank divided by the diameter of the drum.`