L3

This is considered a medium-weight anti-submarine torpedo. It was developed for use from surface ships, although it is credited with a submarine-launch capability as well.

The L3 has a non-standard diameter of 21.65 inches (550 mm), which is greater than the 21 inches (533 mm) of all Western heavy torpedoes. Its approach course and depth are preset; once the L3 nears the target's estimated position, an active acoustic homing head begins searching for the target (effe ctive...