A gun crew aboard HMCS Prince Robert operates one of the ship's twin 4-inch anti-aircraft guns.

Sailors carry ammunition (left) and load the guns (centre). In the foreground, others use a machine that sets the fuzes on the shells to explode at the proper time. On 21 November 1943, Prince Robert arrived just in time to reinforce a convoy under attack by 25 German aircraft armed with remote-controlled glider bombs. Heavy anti-aircraft fire, especially from Prince Robert, destroyed two enemy aircraft and disrupted the large-scale attack, limiting Allied losses to one merchant ship sunk and one badly damaged.

George Metcalf Archival Collection
CWM 19930012-072