Iceboat
a triangular framework of wood, running by means of a sailwith broad end forward-on three skates or runners 3 feet long by 8 inches deep.
There is but one large sail, usually triangular, fastened to a boom and yard, and yard , which may be over 30 feet in length.
Such an iceboat may be steered by the rudder-skate in almost any direction not in the teeth of the wind, and may attain an average speed of 30 or 40 miles an hour, and sometimes as much as 65.
The Hudson and the Shrewsbury rivers may be regarded as the Eastern headquarters of this sport, and there are several iceboat clubs.