HMS CRANE finds a safe berth at MMM


HMS CRANE was the last of the famous Black Swan class of U-boat hunting sloops to serve in the RN, being paid off in 1963. The CRANE Association was wound up last year but several Ton Class Association (TCA) members, who are proud to have served in CRANE’s later commissions, were keen that their memorabilia should be given into safe keeping.

The ship’s bell is at Tower Hamlets as the Borough of Bethnal Green adopted the ship during Warship Week in 1943.



The 7th CRANE to serve in the Royal Navy

A 'Flat Iron' Gunboat of 1872. Armed with a ''9'' muzzle loading cannon for harbour defence.

JO Smith and Doreen Down 'turned to' moving the ships model into it's new berth in the museum


1943 U23 - F123 1962


HMS CRANE was a Modified Black Swan Class Sloop, pennant number U23, launched in November 1942. She represented the cutting edge of Anti-Submarine warfare at that time, being fast, heavily-armed and equipped with advanced radar and sonar detection equipment. HMS CRANE was adopted by the Borough of Bethnel Green during Warship Week in 1943.

She served throughout WW2 in the Atlantic, Mediterranean (covering Operation HUSKY, the landings in Sicily), Normandy landings, Far East (defending the supply ships of the Fleet Train as the combined American, British and Dutch fleet closed in on Japan). Together with another consort she sank two U-Boats: U538 off South West Ireland in 1943 and U962 off Finisterre in 1944. She went into reserve in 1946 but in 1951was re-commissioned as Leader of the 3rd Frigate Squadron for service in the Far East with the pennant number F123.  She joined UN Forces in the Korean War in 1953-55 and fired 1756 rounds of 4 inch High Explosive shells during the blockade of the west coast. CRANE was deployed to the Red Sea for the Suez campaign (Operation Musketeer, 1956), where she shot down one and damaged two other Israeli jet aircraft which had attacked her due to mistaken identity. However she was damaged by their rockets and cannon shell, as a result of which she had a long refit and modernisation in Singapore before resuming patrols covering the South China Seas, Maldives, Borneo, Japan and Australia.

The design of the Black Swan Class had evolved from the Minesweeper Sloops of the 1920’s and 30’s, themselves traceable to the Flower Class of WW1. 45 Black Swan Sloops were built for the Royal Navy and Royal Indian Navy during the late 1930’s and 40’s and others were cancelled at the end of the war. The “Modified” design had small changes to dimensions but more powerful turbines, enabling them to steam at 20 knots.

CRANE’s dimensions were: Length 299ft x Beam 38ft 6 ins x Draught 11ft 6 ins. Displacement 1,950 tons fully laden. Powered by two Admiralty Pattern 3-drum boilers driving twin screws at 4,300 shaft horse power. Complement 192.

Main Armament was three twin 4-inch Mk XVI gun mountings capable of engaging surface and aircraft targets, plus two rails for depth charges and four depth charge throwers. Anti-aircraft armament was updated throughout her life from the original fit of 4 x 2 pounder pompoms and a quadruple 0.5 inch machine gun, improved to six x twin Oerlikon 20mm mountings which were replaced during the Korean  War by two twin and six single 40mm Bofors 40/60 AA mountings. In 1951 a “split” Hedgehog anti-submarine mortar was fitted either side of B turret, which also had 3-inch illumination rocket rails fitted to the gunshield. As late as 1960 IFF [Identification Friend or Foe] was added to her air guard, surface and navigational radars.

Her sonar equipment was a 144/164 set which gave range and bearing of submarines, typically  out to 2700 yards and a 174 depth finder accurate on targets up to 200 ft deep.. This combination could fire the Hedgehog mortar automatically at optimum predicted ranges; placing 24 x 80 pound contact-fuzed bombs in an ellipse around a target submarine 375 yards ahead of the ship. Depth charges required the attacking ship to pass directly over the submarine but even a near miss could be fatal.

During the Battle of the Atlantic Black Swan sloops operated as Hunter Killer Groups, not tied to defence of convoys but proactively searching for U-boats in the areas where they congregated i.e. near their bases in the Bay of Biscay and in mid-Atlantic where convoy routes to and from North America crossed. For much of the war this area was beyond the reach of land-based aircraft.

Famous Black Swans included STARLING, Captain Frederic Walker DSO***, who pioneered the Escort Group concept and sank six U-boats in one patrol, MAGPIE, commanded by HRH Prince Philip in the Mediterranean in 1950’s and AMETHYST of Yangtse incident fame.               HMS CRANE was the last of the Black Swans to be operational in the Royal Navy, being paid off in 1962.




The Honour Board of HMS Crane is not part of the museum collection regrettably.

However we thought it worth showing a picture of the board to show the sterling work the ship did during WWII