The metal steam powered racing hydroplane 'Dart' with lagged superheated horizontal cross-tube boiler with normal fittings, 'blowlamp' burner and main stop and steam line to single vertical cylinder four pillar engine 5/8in. bore x 3/4in. stroke, displacement lubricator, counter-balanced crankshaft, twin gear driven feed pumps and single shaft, propeller (one blade missing) and rudder, finished in black, brown and white -- 39in. (99cm.) long