Wartime experience with the Scharnhorst class indicated that the torpedo-defense system was insufficiently strong to protect the H-39 design from underwater damage.

Paladin sustained underwater damage in the ramming of the submarine and was put out of action for five months.

At Durban she was drydocked for assessment of underwater damage.

On 6 April, Illustrious suffered serious underwater damage from a near miss by a kamikaze.

But I can do nothing about the underwater damage without a dry dock or calm water where I can put divers over the side.

Pontoon boat drafts may be as shallow as eight inches, which reduces risk of running aground and underwater damage.

Two were direct hits and a third a near miss close aboard the port bow causing severe underwater damage.

Junack, who had abandoned ship by the time it capsized, observed no underwater damage to the ship's starboard side.

The ship's hull was divided by six watertight transverse and two longitudinal bulkheads for protection against underwater damage.

You must go on to find the safe harbour at Sawda island, where we can repair the underwater damage before she founders and sinks.