patrols from July until September 1950, when HMS Triumph was replaced by , equipped with the newer Hawker Sea Furys. During operations off Korea, Seafires flew 360 operational sorties, losing one aircraft shot down by friendly fire from a Boeing B-29 Superfortress and a second aircraft lost when its arrestor hook failed to extend. The Seafire proved more vulnerable to the stresses of carrier operation with many aircraft suffering wrinkling of the rear fuselage brought about by heavy landings. Following the end of operations, when peacetime airworthiness rules were re-imposed, all but three of 800 Squadron's Seafires were declared unserviciable owing to wrinkling. The Royal Canadian Navy and French Aviation Navale also obtained Seafires to operate from ex-Royal Navy aircraft carriers following the end of the Second World War. Canada's Seafire Mk XVs were flown from and before being replaced by Sea Furies in 1948. France received 65 Seafire Mk IIIs, 24 of these being deployed on the carrier in 1948 when it sailed for Vietnam to fight in the First Indochina War, the Seafires operating from land bases and from Arromanches on ground attack missions against the Viet Minh before being withdrawn from combat operations in January 1949. After returning to European waters, the Seafire units were re-equipped with Seafire XVs but these were quickly replaced by Grumman F6F Hellcats from 1950. The Irish Air Corps operated Seafires for a time after the war, despite having no naval air service nor aircraft carriers. The aircraft were operated from Baldonnel (Casement Aerodrome) with most of their naval equipment removed, but retaining the folding wings. During the 1950s, an unsuccessful attempt to recycle the Merlin engines was made, by replacing the ailing Bedford engine in a Churchill tank with an engine from a scrapped Seafire. On 19 June 1954, the last Spitfire in Irish service was withdrawn. Operators Royal Canadian Navy French Navy Aeronavale Irish Air Corps Royal Navy Fleet Air Arm 706 Naval Air Squadron 1945–1946 719 Naval Air Squadron 727 Naval Air Squadron 1946–1950 728 Naval Air Squadron 736 Naval Air Squadron 1943-1952 737 Naval Air Squadron 1944–1945 746 Naval Air Squadron 761 Naval Air Squadron 764 Naval Air Squadron 1945 771 Naval Air Squdadron 1946-1950 772 Naval Air Squadron 777 Naval Air Squadron 778 Naval Air Squadron 800 Naval Air Squadron 1946–1950 802 Naval Air Squadron 1945–1950 803 Naval Air Squadron 1945–1946 805 Naval Air Squadron 1945 806