Motto: None


Pennant Number:



Battle Honours:




Seattle-Tacoma Shipbuilding Co. Tacoma,



Completed by:

Commercial Iron Works, Portland, Oregon


15,390 tons

length (Overall):

 494ft 9in


 69 ft 6 in


 18 knots

Crew Complement:


A/C Capacity:


Commanding Officers:

Cdr. R.B. Cooper RN
Dec 1943 - Mar 44




Capt. B.J. Fisher RN
Mar 44 - Apr 45




Capt. G.A. Rotherham RN
Apr 45 - Mar 46







HMS TROUNCER alongside a pier at Portland, Oregon on February 9th 1944, soon after completion.  Photograph from the Bureau of Ships Collection in the U.S. National Archives (#19-N-61366).

Laid down 1 February 1943, at Seattle-Tacoma Shipbuilding Co. Tacoma, Washington, a C3-S-A1 type freighter, Maritime Commission hull number 258; Seattle-Tacoma hull number 42. The hull was purchased by the US navy to be the USS PERDIDO ACV-47 (later changed to CVE-47 on July 15th 1943). She was launched on 16 June 1943 by her sponsor Mrs. H.M. Bemis. Her hull was towed to the Commercial Iron Works yard, Portland, Oregon, for completion and fitting out as an aircraft carrier. Whilst still under construction it had been decided that ACV-47 was to be transferred to the Admiralty on loan on her completion; she was assigned to the United Kingdom under lend lease 23 June 1943. She was transferred to the Royal Navy on 31 January 1944 and commissioned in RN service, at Portland, as HMS TROUNCER (D85), Commander R. B. Cooper RN in command.

After completing her builder's sea trials and her acceptance by the Admiralty TROUNCER sailed to Vancouver, Canada to be modified to meet Admiralty requirements, receive her full crew compliment, complete sea trials and work up ready for beginning her active service. This work was undertaken by the Burrard Dry Dock Co. Ltd., North Vancouver, British Columbia, HMS TROUNCER arrived there on February 21st 1944.

CVE-47 returned to Norfolk, Virginia, 21 February 1946, and was returned to U. S. Navy custody 3 March 1946. Authorized r for disposal 25 March 1946, and struck from the RS Naval Register 12 April 1946. She was sold to William B. St. John and delivered to her purchaser 6 March 1947. Reconstructed as a merchant ship and renamed Greystoke Castle for the Lancashire Shipping Co. Ltd. (Molers Ltd. managers). Renamed Gallic in 1954, further renamed Berinnes in 1959. She was scrapped in Taiwan starting November 1973.


A fuller account of this ships history will be added at some time in the future.


Content revised: July 2008

Sources used in compiling this account:

Brown, D. (1974) 'Carrier Operations in World War 2 - vol 1 the Royal Navy' Shepperton, Ian Allen Ltd.

Hobbs, D. (2003) 'Royal Navy Escort Carriers' Liskeard, Maritime Books

Poolman, K. (1988) 'Allied Escort Carriers of World War Two in Action' London, Blandford Press

Sturtivant, R. & Burrows, M. (1995) 'Fleet Air Arm Aircraft 1939 to 1945' Tonbridge Wells, Air Britain (Historians)

Sturtivant, R & Balance, T., (1994) 'Squadrons of the Fleet Air Arm' Tonbridge Wells, Air Britain (Historians)

Weaver, D. (2004) 'The History of HMS Queen - A World War II Lend Lease Escort Aircraft Carrier' Hong Kong, D.G. Weaver.

British officers (including Commonwealth officers serving in British units) Part of WWII Unit Histories and Officers web site.

Casualty Lists of the Royal Navy and Dominion Navies, 1922-present A comprehensive resource listing service details of men and women killed in RN and RM service.

Convoy Web A comprehensive resource listing WW2 convoys and ships .

War Sailors Ships in Atlantic and miscellaneous convoys during WW2.


On-line archive Fold3.com various documents including;

Admiralty War Diaries

US Naval Station, Seattle, Washington

US Naval Station,  Manchester, Washington

Puget Sound  Navy Yard War Diaries

US Thirteenth Naval District War Diaries

Norfolk Navy Yard War Diaries

Mew York Navy Yard War Diaries

Miscellaneous documents



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