G7a torpedo
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 1936, the Kriegsmarine''s first …