A History of HMS PATROLLER

HMS PATROLLER was an 'Ruler' class escort carrier; her keel was laid down on November 27th 1942, at Seattle-Tacoma Shipbuilding Co. Tacoma, Washington, as a C3-S-A1 type freighter Maritime Commission hull number 255, Seattle-Tacoma hull number 39. The hull was purchased by the US navy to be the USS KEWEENAW ACV-44. Whilst still under construction it had been decided that ACV-44 was to be transferred to the Admiralty on loan on her completion as an aircraft carrier. ACV-44 was launched on May 6th 1943 by her sponsor Mrs. R. G. Risley, she was transferred to the United Kingdom under Lend Lease on June 10th 1943.Her designation was changed to CVE-44 on July 15th 1943.

On October 22nd 1943 she successfully completed her sea trials and was she delivered to the US Navy at the Seattle-Tacoma yard; she was accepted on behalf of the US Navy by Captain J. L. McGuigan, USN Supervisor of Shipbuilding at Tacoma and was transferred to the Royal Navy on the same day. She was accepted on behalf of the Admiralty by her commanding officer Captain A.J. Robertson, RNR, and commissioned into RN service as HMS PATROLLER.

Temporary allocation as Eastern Fleet Ferry carrier

It was originally planned that PATROLLER was to proceed to Vancouver, British Colombia, to enter Burrard's shipyard, for modification work like her sister ships, this work was differed in order to meet more pressing needs. Due to a shortage of merchant shipping a shortfall in Lend-Lease aircraft deliveries from the US to India had developed and the Admiralty proposed that three of the newly completed CVEs should be employed in the ferry role rather than become fully operational. Admiralty planning earmarked EMPRESS (CVE 38), PATROLLER (CVE 44) and RANEE (CVE 46) for this duty, EMPRESS was to begin ferry operations as soon as possible, while PATROLLER would follow in November and RANEE in December. This planning was later amended, with THANE (CVE 48) replacing EMPRESS; this may have been due to the fact that EMPRESS was fully operational upon leaving the Seattle-Tacoma shipyard and would be required for combat operations. In the end THANE was not required.

PATROLLER (and RANEE) was to receive the minimum alterations required to bring her to operational status for ferrying purposes, and a reduced crew complement was drawn up with the air department comprising of only an Air Engineering officer and 10 ratings - all that was required for the ferry role. The remainder of her air department, flight deck crews etc would be drafted in when the ship was to begin flight operations. Work on building PATROLLER was completed on the 25th of October and she began a short work-up program in preparation for a ferry voyage to India.

Round trip Ferry run, San Francisco to Cochin, India: December 1943 – March 1944

On completion of her work-up, PATROLLER departed from Seattle on November 22nd, bound for San Francisco to load a ferry cargo of airframes and stores; amongst these were 20 Curtiss P-40 Warhawk fighters and 2 Officers and 20 enlisted men from the US Navy. She was allocated to the Eastern Fleet as a ferry carrier and sailed on the first leg of her voyage, to cross the South West Pacific on December 3rd 1943. From San Francisco she made for Melbourne. Australia, arriving there on December 22nd; after celebrating Christmas in Melbourne she continued on to Fremantle. Calling there on January 2nd 1944 before crossing the Indian Ocean to dock at Cochin, S. India where her aircraft and stores were disembarked to RNAS Cochin on January 22nd; once unloaded she proceeded to Colombo, Ceylon the following day. At Colombo stores and passengers were loaded for Australia and New Zealand, before she sailed for the return leg via Fremantle, Melbourne and Wellington where she called on February 14th before arriving back in San Francisco on March 7th.

Loaned to the US Army as a ferry carrier: March - April 1944

PATROLLER secured alongside Berth No.8 at US Naval Air Station Alameda on March 9th, and underwent voyage repairs carried out by Bethlehem Steel CO. On completion of her repairs, she sailed for San Diego to embark on a ferry role for the second time. She was on loan to the US Army to transport P.40 Warhawk airframes to bases in the Southwest Pacific, sailing from San Diego on March 15th. She arrived at Pearl Harbour on March 21st. After unloading, she sailed on the 24th to return to Alameda for a second load. She arrived at USNAS Alameda on March 31st.

On completion of loading, PATROLLER sailed from Alameda on April 6th, arriving at Pearl Harbour early on the 12th. She sailed from Pearl Harbour for Sandiego on April 16th. She called at USNAS Alameda on April 19th before sailing for Esquimalt, British Columbia, on the 21st, arriving there on the 23rd, where she reverted to RN control. While at Esquimalt, Captain C.D. Arbuthnot, RN, relieved Captain Robertson as commanding officer.

Modification and preparation to enter service: May – July 1044

On May 1st 1944 she proceeded to Vancouver to enter the Burrard Dry Dock Co. Ltd., North Vancouver yard and begin her delayed modification program. PATROLLER was the eighteenth of nineteen escort carriers to be modified by Burrards, and on arrival at Vancouver she was secured at No 7 berth, Lapointe Pier; at this time sister CVEs ARBITER, PUNCHER, RAJAH, REAPER, SMITER, THANE and TROUNCER were in the hands of the Burrard's yard and at various stages of modification,. Work commenced the following day: this work totalled 150 separate modifications and included lengthening of the flight deck, fitting redesigned flying controls and fighter direction layout, modifications to hangar, accommodation and store rooms, installing extra safety measures including major changes to the aviation fuel stowage and oiling at sea arrangements,, modifying gunnery and other internal communications, adding extra W/T and R/T sets, and improved darken ship arrangements. A total of 253.5 tons of pig iron were also added to PATROLLER for ballast.

As work progressed PATROLLER moved through the yards various berths; the yard could be working on six different ships at any time with separate aspects of the work carried out at different berths, the ships passing through like a production line, moving from one berth to another until complete. PATROLLER moved to No 3 on May 9th, then to No 4 on May 23rd and again on June 9th to No 5 Berth. She entered Burrard's floating dry dock on the 18th, spending five days in dock for remedial work before returning to No 5 berth on the June 22nd where her alterations were completed on the 28th . PATROLLER moved to a mooring in the stream on the June 30th and began preparing for her post modification shakedown. Her modifications had taken a total of 55 days to complete. She also made a round trip to the US Naval Yard at Bremerton, Washington to ammunition the ship and then return to the Straits of Georgia (between Vancouver Island and the mainland), for steaming, gunnery, radar and other trials and exercises.

{Note: the last five CVEs to pass through Burrard's dockyard, PATROLLER, PUNCHER, REAPER, RANEE and THANE had a longer modification timetable than the other 14 vessels modified by Burrard's. This was due to the Admiralty decision that the single Oerlikon mounts on the Gallery Deck and foc'sle deck, were to be changed for fourteen powered twin mountings. An extra ten days was allocated for this work to be completed.]
 

Ferry trip Norfolk to UK: July - September 1944

PATROLLER sailed for her maiden voyage to the UK on completion of her post modification shakedown, and arrived at San Francisco on July 27th on route to the Panama Canal. Once through the canal she proceeded to the US Navy Operating Base at Norfolk, Virginia to embark her ferry load; she arrived at Norfolk on August 10th 1944. She was now allocated to Western Approaches Command for ferry duties. Loading complete she sailed for New York on August 22nd to embark passengers and await an east bound convoy. PATROLLER, in company with her sister CVE ARBITER sailed for the UK in convoy CU 37, departing New York on August 27th and arriving in the UK on September 7th; ARBITER docking at GLASGOW and PATROLLER at Liverpool.
 

Ferry trip Norfolk to UK: September - October 1944

After unloading at Gladstone Dock, Liverpool, PATROLLER made a return crossing to Norfolk for a further ferry load, sailing form Liverpool on September 12th with convoy UC 37. On arriving at Norfolk on the 23rd she embarked her second ferry load for the UK. On the 29th she sailed with convoy CU 41 bound for Liverpool; off Ireland she broke away from the convoy and proceeded to the Clyde estuary, arriving at Glasgow on October 9th to unload and undergo a period of defect rectification in a Clyde yard. On leaving the Clyde shipyard it appears that PATROLLER  was used for flying operations; possibly to test her arrestor gear and accelerator and other Flight deck equipment. Aircraft form 768 squadron, RNAS Abbotsinch, operated from her deck on October 31st and November 1st -Seafire MB222 flown by Sub-Lt. LE Garner is recorded as having gone into the barrier, tearing the engine out of its mounting on November 1st.

Ferry trip Norfolk to UK: November - December 1944

PATROLLER sailed for Norfolk again on November 11th as part of convoy UC 044B to collect her third ferry load, arriving at Norfolk on November 22nd. Passengers were embarked at New York, including evacuee children returning home to the UK. She joined convoy CU 49 off New York on December 1st 1944, and arrived in the Clyde to unload and to receive further repair work on December 12th.

On the completion of her repairs PATROLLER operated as a Deck Landing Training carrier in the Clyde training areas from December 21st to the 23rd, embarking 8 Corsairs of 1843 squadron from RNAS Eglinton, Northern Ireland. PATROLLER was not allocated a new role until late January 1945 when she was loaned to the US Navy.

Loan to US Navy for Pacific ferry duties: January - April 1945

PATROLLER was assigned to the US Navy from January 28th 1945, and she sailed for the Atlantic crossing with convoy UC 54A which departed the following day. On February 8th, a day out from New York she broke off from convoy to rendezvous with the USS UNDERHILL which was to escort her to the Panama Canal Zone. After safely transiting the Canal PATROLLER arrived in San Diego on the February 25th.

She began ferry operations with the US Pacific Fleet on March 4th, departing San Diego on the first leg to Pearl Harbour, from there she continued on to Guam and other forward pacific bases, unloading passengers, stores and airframes ferried from the US and embarking others for return to Hawaii and to San Diego. PATROLLER completed her round trip on April 11th when she arrived back at San Diego. She sailed for Norfolk, Virginia six days later to resume ferry operations under the control of Western Approaches Command.

Ferry trip Norfolk to UK: May 1945

On her arrival at Norfolk on May 1st 1945 PATROLLER began embarking stores and equipment, in addition to a full complement of airframes for delivery to the UK she loaded the personnel and 18 Corsair IV aircraft of 1852 Naval Air Squadron on the 4th. The squadron had formed and worked up at  USNAS Brunswick, Maine, on February 1st 1945 and was taking passage to Northern Ireland to continue training in the UK. PATROLLER sailed for New York the following day where further passengers and stores were embarked before she joined Convoy CU 69 which sailed from New York on May 10th, arriving at Belfast to unload on May 25th.

Refit: June - July 1945

After disembarking 1852squadron to RNAMY Belfast PATROLLER sailed for Liverpool on May 26th for a refit. In March, it had been promulgated that the three RN escort carriers on loan to the US Navy, PATROLLER, REAPER and RANEE were to be withdrawn from service in April for modification for operation as replenishment carriers for the British Pacific Fleet. It was expected that she would sail with a spare Light Fleet Carrier Group to arrive in Sydney in early September. 

By the time she emerged from her refit, the war in the Pacific was at a stage where diplomatic negotiations suggested Japan might surrender soon. This was confirmed in early August and plans for PATROLLER, REAPER and RANEE were changed. They were earmarked for conversion to a Naval Trooping Vessels.

Troop Ship Conversion: August - November 1945

PATROLLER was one of six RN CVEs (along with ATHELING, FENCER, RAJAH, RANEE, and QUEEN) selected for conversion for Naval Trooping. These ships were to be employed to bring military personnel from the Far East back to the UK and to some Commonwealth countries.

 PATROLLER went upstream to a Clyde shipyard on August 15th for her conversion to a troop ship; during this period, almost all of the ship's company were drafted off the ship, and a scaled-down complement arrived to man her. The carrying capacity of a CVE with temporary accommodation added in the hangar was approximately 60 officers and 1,000 ratings in addition to a crew of about 250. The work consisted of converting the hangar deck into accommodation spaces; about 600 bunks were installed along with additional mess decks and heads. Extra fresh water storage was achieved by converting the aviation fuel tanks, and extra storage for foodstuffs and galley capacity was installed. Additionally, Corticene flooring was laid in all gangways, all berthing spaces, and the new dining hall area in the hangar. The work was completed in early November, and PATROLLER moved downstream to a buoy off Rosneath Patch, where she was to store the ship and carry out post-conversion trials. While in the hands of the dockyard, PATROLLER received a new commanding officer, Captain J. I. Robertson RN, who replaced Captain Arbuthnot on October 27th 1945.

First trooping voyage – round trip to Colombo 

After embarking stores and some passengers, PATROLLER sailed for Devonport Dockyard, where she arrived on November 13th to embark more passengers and naval drafts (crewmen for other ships and establishments taking passage en masse). She set out for her first round-trip voyage to Colombo on November 23rd, calling at Gibraltar, Malta, Port Said and Aden en route. She arrived at Malta on November 26th and, after exchanging passengers, sailed on the afternoon of the 29th for Port Said. She made a daylight transit of the Suez Canal on December 4th, and arrived in Colombo on December 15th 1945. PATROLLER remained at Colombo only long enough to disembark her passengers, store, and fuel ship before embarking personnel for the return leg to the UK; she sailed for Devonport on December 21st, calling at Aden on the 26th and transiting the Suez Canal on the 31st. Departing from Port Said at 07:00 on New Year’s Day 1946, she arrived back at Devonport on January 6th 1946, having celebrated Christmas while at sea.

Second trooping voyage – round trip to Sydney 

PATROLLER was to sail for Australia next, departing from Plymouth at 18:00 on February 1st 1946, bound for Sydney carrying a naval draft of around 800 personnel. She passed through the Suez Canal on January 7th and, after briefly calling at Aden and Colombo, arrived at Fremantle on February 27th. At this time, in addition to her RN passengers, she carried 51 New Zealand and four Australian navy personnel who are on their way home for demobilisation, seven members of the R.A.AF. from India, two members of the R.N.Z.A.F., and eight French navy personnel bound for Noumea and two French army men for Tahiti. She sailed for Sydney on March 1st, arriving there on the 5th. 

After disembarking her passengers, PATROLLER prepared to embark on a large naval lift of personnel for return to the UK. In total, 60 officers and 1000 other ranks were to be accommodated. She also had orders to embark any motor transport that required passage to Colombo as part of the relocation of the RN Drafting Pool, a part of HMS GOLDEN HIND at Warwick Farm, Sydney, to Colombo, as part of the RN withdrawal from Australia. The ‘Pool’ was transhipped as a complete working administrative unit; all the office furniture was embarked in the British-built escort carrier VINDEX at Garden Island and set up in the hangar as complete working units. PATROLLER departed Sydney on March 16th, VINDEX on the 19th. 

She called at Fremantle on March 22nd, sailing for Colombo the next day. She arrived in Colombo on the morning of March 31st and, after unloading, sailed for Aden at 18:00 on April 1st. After calling at Aden on April 6th, she made a night transit of the Suez Canal on the 10th, sailing from Port Said at 02:00 on April 11th, and after an overnight stop at Gibraltar on the 15th, she sailed for Plymouth at 12:00 on the 16th, arriving on April 19th.

Third trooping voyage – round trip to Colombo 

After receiving voyage repairs and crew leave, PATROLLER was ordered to sail for Colombo via Malta on her third trooping voyage, departing at 18:00 on May 19th. She arrived at Malta on the 22nd and exchanged passengers before continuing on to Colombo. She arrived at Port Said at 14:00 on the 25th, beginning her transit of the Canal at 08:00 the next morning. After calling at Aden on the 31st. The planned schedule was now amended. PATROLLER was redirected to Singapore and arrived on June 11th. Here she was to embark a personnel lift for the Army for return to the UK, sailing for Colombo at 10:30 on June 17th. Sailing from Colombo at 13:30 on June 23rd, she called at Aden on the 29th and arrived at Port Said at 21:30 on July 3rd. Departed Gibraltar 10:00 on July 12th for Plymouth, arriving on the morning of July 15th.

 Fourth-trip voyage – round-trip to Singapore and Hong Kong 

After receiving voyage repairs and crew leave, PATROLLER was ordered to sail for Hong Kong, via Malta and Colombo, sailing at 18:00 on August 7th. Her planned sailing from Gibraltar on the 11th was delayed for 4 days after a mooring wire became entangled around her screw. PATROLLER did not arrive at Malta until 08:00 on the 19th. After exchanging passengers, she sailed for Port Said, arriving at 18:00 on August 21st, then entered the Canal at 06:00 on the 2nd. She called at Aden on the 26th, then Colombo on September 1st, before sailing for Singapore the following day, arriving on the 6th. After exchanging passengers, she sailed at 03:00 on the 8th for Hong Kong. 

PATROLLER arrived in Hong Kong on or around September 12th. Here she disembarked passengers and cargo before embarking RN personnel and civilian passengers for passage to the UK. This was to be the last major passenger lift from the colony; the remaining RN personnel were to return home aboard PATROLLER and the Fleet Carrier FORMIDABLE. She sailed from Hong Kong on September 20th, arrived back in Singapore on the 24th, departed for Colombo on the 26th, and arrived there on the 29th. After storing and embarking more passengers, PATROLLER sailed for the UK via Aden, Port Said and Gibraltar. She transited the Suez Canal on October 10th, sailing from Port Said on the 11th. After an overnight stop at Gibraltar on the 16/17th, she arrived back at Plymouth on October 20th.

Disposal: Return to US Custody

Once all passengers had been disembarked PATROLLER began de-storing in preparation for her return to US custody. During early November all admiralty equipment was removed and the majority of her ship's company were drafted to other billets, leaving a steaming party aboard for her final Atlantic crossing. HMS PATROLLER made her final voyage from the UK on November 27th 1946 bound for Norfolk, Virginia via Bermuda; her passengers included GI Brides and their children for passage to the US, and a draft of RN personnel which disembarked at Bermuda.

She arrived at Norfolk Naval Base, on December 9th and was decommissioned. CVE-44 was returned to US Naval custody December 13th 1946, she was the last of the Lend-Lease carriers to be handed back. CVE-44 was stricken for disposal on February 7th 1947 and was sold for conversion into a merchant cargo ship on August 26th 1947. On completion of her conversion she was operated  by the United Dutch Shipping as the S.S. ALMKERK. She was sold in 1969 to the Thai Hwa Navigation Corp., Panama and renamed PACIFIC ALLIANCE. She was sold for scrap in 1974 and was broken up in Taiwan beginning in February of that year.

Home page | go to the top