Panning shot of a submarine on water surface - it moves slowly through water. Long shot of more submarines at sea, cloud of dust is seen over them. Several shots of a battleship with crew lined up on deck. Pan along the ship. Battleship is arriving to a harbour - more battleships...
Men race hydroplanes on a lake.
Speedboats / hydroplanes take part in a race at Newnham-on-Severn, Gloucestershire.
National contest for radio-controlled model.
Speedboat race at Feltham, Middlesex.
Hydroplanes race on the waters of Bidfont Lake in Middlesex.
Hydroplanes race around the circuit, man in the air with water skis and large kite.
Hydroplane on first test completely overturns in New York Harbour.
New seaplane takes off from the water.