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The Whitehead torpedo was the first self-propelled or "locomotive" torpedo ever developed. [a] It was perfected in 1866 by British engineer Robert Whitehead from a rough design conceived by Giovanni Luppis of the Austro-Hungarian Navy in Fiume. [7] It was driven by a three-cylinder compressed-air engine invented, designed, and made by Peter ...
German G7a(TI) torpedo at the Norwegian Armed Forces Museum in Oslo. The G7a(TI) was the standard issue Kriegsmarine torpedo introduced to service in 1934. It was a steam-powered design, using a wet heater engine burning decaline, with a range of 7,500 metres (24,600 ft) at 40 knots (74 km/h; 46 mph) speed.
The torpedo was based on a newly developed British 46-knot (85 km/h) 21-inch (53 cm) Whitehead torpedo. This weapon used a new double-action two-cylinder engine rather than the four-cylinder radial engine used by World War I-era British torpedoes. It was significantly faster (8–10 knots (15–19 km/h)), although it had a much shorter range ...
The weapon has a modular design that includes 2–4 silver-zinc oxide battery modules and is able to achieve a range of more than 50 km (27 nmi) and a speed exceeding 92.6 km/h (50 kn) powered by a high frequency permanent magnet motor, with a closed-loop cooling system independent from the environment.
Solid propellent piston engine: Mark 46 Mod.1 ... Supercavitating torpedo high-test peroxide/kerosene rocket: 370 km/h (200 kn) for 15 km (16,000 yd) Varunastra
The torpedo attained a speed of 20 knots (23 mph) using a wire .04 inches (1.0 mm) in diameter but later this was changed to .07 inches (1.8 mm) to increase the speed to 27 knots (31 mph). The torpedo was fitted with elevators controlled by a depth-keeping mechanism, and the fore and aft rudders operated by the differential between the drums.
The Martin T4M was an American torpedo bomber of the 1920s. A development by the Glenn L. Martin Company of their earlier Martin T3M, and, like it a single-engined biplane, the T4M served as the standard torpedo bomber aboard the aircraft carriers of the United States Navy through much of the 1930s.
The engine was a custom design specifically created to satisfy the requirements of the Kaiten. It was of a U8 configuration and was in the aft compartment of the vessel. This compartment was open to the sea, with seawater used as coolant .