As the torpedo leaves the submarine, the gyroscope is still lined up with the submarine and with the torpedo itself; the spinning mass will keep it pointing in the same direction, even when the torpedo changes its heading. After traveling a set distance (known as the reach), the gyro mechanism kicks in.

Can torpedoes turn?

Modern submarine torpedoes come in two variants: thermal and electric. ... A gas turbine or axial piston engine converts this fuel into torque that spins counter-rotating propellers, propelling the torpedo up to speeds in excess of 60 knots.

What was wrong with us torpedoes in ww2?

The Mark 14 torpedo had four major flaws. It tended to run about 10 feet (3 m) deeper than set. The magnetic exploder often caused premature firing. The contact exploder often failed to fire the warhead.