Tp 61

The Tp 61 series of heavyweight torpedoes is the standard weapon for the Swedish navy's submarines and fast-attack craft, with the Tp 617 version being exported to other navies. This wakeless torpedo is especially suited for shallow-water operations.

The Tp 61 is stabilized by an air-driven gyroscope with a maximum bearing error of less than 149 ft (50 m) at the end of the run. The improved Tp 617 model has a programmable, digital computer that controls the homing system through...