Ketch mizzen sheet. So on a ketch, the dual purpose of the mizzen sail is to both propel and balance the vessel, while on a yawl, the smaller mizzen mainly serves the purpose of trim or balance. Yawls tend to have mainsails almost as large as those of comparable sloops. A ketch may be distinguished from a cutter or a sloop by virtue of having two masts rather than one, though a ketch with two foresails is sometimes called a "cutter-rigged ketch". Both the ketch and the yawl differ from the two-masted schooner, whose aft mainmast is taller than the foremast.
Ketch mizzen. To assist going to windward, a ketch will usually carry at least one foresail such as a jib or genoa. Although both the single-masted Bermuda sloop and cutter have simpler rigging and are more efficient, the sails on a ketch are smaller and more easily handled, and its mainmast is shorter. A modern ketch's sails may be any type of fore-and-aft sail, in any combination, and most are Bermuda rigged. The modern ketch is popular in northern Europe and among long distance cruisers. Both the ketch and the yawl rig have proved generally to be more suitable for motorsailers