When were torpedoes first used in war?

The earliest recorded use of a torpedo was in 1801 when Robert Fulton sank a small ship using a submarine mine with an explosive charge of 20 pounds of gunpowder at Brest, France. Stationary torpedoes were first used on a large scale by the Russian government during the Crimean War (1854-1856).

How much explosive was in World War 2 torpedo?

22.4″ (56.9 cm) Mark 25

Ship Class Used On	Aircraft
Explosive Charge	725 lbs. (329 kg) TPX
Range / Speed (See Note on Sources)	2,500 yards (2,300 m) / 40 knots
Power	Wet-heater steam turbine
Guidance	Mark 12 Mod 3 gyro

How were torpedoes propelled in ww2?

It was propelled by a three-cylinder Brotherhood radial engine, using compressed air at around 1,300 psi (9.0 MPa) and driving two contra-rotating propellers, and was designed to self-regulate its course and depth as far as possible.

What was the most frustrating attack of World War II submarines?

On the morning of July 24, 1943, Lieutenant Commander L.R. Daspit and the submarine Tinosa launched what may have been the most frustrating attack of the United States’ World War II submarine campaign against Japan.

What was the depth control variance during the World War II?

By February 1942, the bureau reported a variance of four feet in depth control during the initial 880 yards of a run.

How did Daspit shoot down the tanker?

To Daspit’s dismay, the tanker did not explode or begin to list, but rather turned away and put on speed. Tonan Maru No.3 ‘s abrupt course change left the submarine in a poor firing position, but Daspit fired the remaining two torpedoes from his forward tubes by instinct.

Why did the USS Mark XIV run deeper than set?

On August 1, 1942, he advised the fleet that the Mark XIV ran approximately 10 to 12 feet deeper than set. The initial culprit was the depth-control mechanism. This intricate device sets the tension of the depth spring to correspond with the water pressure at the desired running depth.