William Lidstone McKnight, (18 November 1918 – 12 January 1941) was a Canadian aviator and flying ace of the Second World War. He was Canada's fifth-highest scoring ace of the war. McKnight joined the Royal Air Force (RAF) in early 1939 and served in No. 242 Squadron RAF during the final phase of the Battle of France, covering the Allied retreat from Brittany, and later the Battle of Britain. McKnight's aircraft wore a distinct cartoon of a jackboot kicking Adolf Hitler on the port side of the engine cowling. His Hurricane also carried a human skeleton image which held a sickle in its hand under the cockpit, on both sides of the aircraft. McKnight scored 17 victories, as well as two shared and three unconfirmed kills. McKnight was shot down and killed on 12 January 1941 during a fighter sweep over Calais. Early years William Lidstone "Willie" McKnight was born in Edmonton, Alberta, Canada on 18 November 1918 and grew up in Calgary. He was considered a bit of a character at school and showed a rebellious streak. At Crescent Heights High School, he quarterbacked the football team but was renowned for once crashing his father's car into a neighbour's fence while trying to impress a new girlfriend. In 1939, after entering the medical school at the University of Alberta, McKnight continued his cockiness but was on the verge of expulsion when a British recruiting mission for the Royal Air Force arrived in Calgary. Seeing a chance for adventure as well as leaving behind a turbulent romance with his girlfriend Marian, he enlisted as a prospective fighter pilot in February 1939 and sailed for England. Second World War Commissioned in the Royal Air Force (RAF) and appointed acting pilot officer on probation (41937), 15 April 1939, McKnight began training at No. 6 Flying Training School (FTS), Little Rissington, Bourton-on-the-Water, Cheltenham. While in training, he was nearly incorrigible, being confined to his barracks twice (for a fortnight) and, along with a classmate, being placed on open arrest as "perpetrators of a riot." Highjinks soon came to an end when Germany invaded Poland and the recruits in training were hurriedly graduated as fighter pilots. McKnight was posted to No. 242 Squadron on 6 May 1940. The squadron had reformed on 30 October 1939 at RAF Church Fenton and initially had a large number of Canadian personnel on strength. The first aircraft assigned