The skiff with a sail has developed into specific sailing boats bearing the name "skiff". In Sydney, the term was used for a number of racing classes (sizes from 6 ft to 23 ft have existed). These were originally heavily crewed and canvassed boats that were relatively short for the canvas and crew carried and were developed from working boats of the time. This style of boat is still active in the form of Historical 10 foot and 18 foot classes.(Wikipedia)