The escort carrier was renamed HMS Puncher (D79) of the British Ruler class and crewed by the Royal Canadian Navy with aircrew from the Fleet Air Arm.

Following the war the ship was converted for mercantile service and renamed Muncaster Castle, Bardic and Ben Nevis, before being broken up in 1973.

The ship was completed and transferred under lend-lease to the Royal Navy on 5 February 1944 and commissioned as HMS Puncher with the pennant number D79.

For this reason, Puncher and Nabob were crewed by Royal Canadian Navy personnel to establish the knowledge base for the future carriers.

[7][8] From there, Puncher made two more ferry trips, taking the Vought Corsairs meant for 1845 Naval Air Squadron to the United Kingdom.

Initially serving in a training role, within the year, Puncher was re-tasked to both airstrike and convoy air protection (CAP), as the damaged Nabob had been decommissioned.

Operations also included strikes against German occupied Norway, hitting industrial and shipping targets such as the steel works at Narvik.

[11] On 11 February, Puncher's Wildcats formed part of the fighter escort for a minelaying airstrike along the western coast of Norway.

The escort carrier's aircraft then provided fighter cover for a British minesweeping mission clearing German-laid mines along the Norwegian coast.

[12] Beginning on 25 June 1945, following the surrender of Germany, Puncher was utilized as a troop transport, carrying Canadian soldiers back to Canada.

[7][14] The vessel sailed under that name until she was sold for scrap and broken up at Kaoshiung, Taiwan on 11 June 1973 by Swie Horng Steel Enterprise Co.[7][14][15]