HMS GRIMSBY
A new class of escort sloops, the Grimsby class, had a heavier gun armament than its predecessors, with two 4.7-inch (120 mm) Mark IX guns mounted fore and aft replacing the 4-inch (102 mm) guns of the earlier ships. As the 4.7-inch guns were low-angle guns, not suited to anti-aircraft use, a single QF 3-inch 20 cwt anti-aircraft gun was mounted in "B" position. Four 3-pounder saluting guns completed the ships' gun armament. The ship was powered by two geared steam turbines driving two shafts, fed by two Admiralty 3-drum boilers. This machinery produced 2,000 shaft horsepower (1,500 kW) and could propel the ships to a speed of 16.5 knots (30.6 km/h; 19.0 mph).
Eight ships of the class were built for the Royal Navy, being laid down between 1933 and 1935 and completing between 1934 and 1936. GRIMSBY was sunk in an air attack by Italian and German dive bombers off Tobruk, North Africa, 25 May 1941.