A device based on a catapult is used to enable seaplanes to take off from battleships. America (USA).
Item title reads - Shooting aeroplanes into the air. Remarkable new apparatus, development of schoolboys' catapult, enables seaplanes to take off from deck of battleship. America, (USA). Exact location unknown.
M/S as the seaplane is suspended in mid-air on a hoist. M/S of the aeroplane on the catapult device, which looks like a long conveyor belt. L/S as the aircraft turns to get into position and shoots off the end. L/S as it flies along.