British 21-inch torpedo

There have been several British 21-inch (533 mm) torpedoes used by the Royal Navy since their first development just before the First World War. The 21-inch was the largest size of torpedo in common use in the RN. They were used by surface ships and submarines rather than aircraft which used smaller 18-inch torpedoes.

British 21-inch torpedo

There have been several British 21-inch (533 mm) torpedoes used by the Royal Navy since their first development just before the First World War. The 21-inch was the largest size of torpedo in common use in the RN. They were used by surface ships and submarines rather than aircraft which used smaller 18-inch torpedoes.