is prolonged above the hounds in a long tapering pole. A yard topsail can be set on a pole-mast in the following manner. The sail is stretched out on the deck and its luff is laced to a light yard (see Fig. 59). The halyard is bent on to the yard at a, and passes through a sheave-hole in the mast; the sail is then hoisted till it is chock-a-block, the halyard is belayed, and the yard is made to lie straight up and down the mast by means of a downhaul, b, fastened to the heel of the spar. The sail is sheeted aft to the gaff like the ordinary topsail. In order to set a larger topsail without increasing the hoist, a jack-yard, c, is often employed. This is a small spar, bent on the after end of a topsail's foot, which extends the sail to some distance beyond the end of the gaff.
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Fig. 60.—Spinnaker to Port.
