No. 242 Squadron RAF was a Royal Air Force squadron. It flew in many roles during the First World War, Second World War and Cold War. During the Second World War, the squadron was notable for having many pilots who were either RCAF personnel or Canadians serving in the RAF – to the extent that it was sometimes known, unofficially, as "242 Canadian Squadron" – and for being the first squadron to be commanded by Douglas Bader.
In May 1940 the squadron moved to RAF Biggin Hill and went into action over France. Douglas Bader was posted to command the Squadron, as a Squadron Leader, at the end of June 1940, when the unit was mainly made up of Canadian pilots that had suffered high losses in the Battle of France and had low morale. Despite initial resistance to their new commanding officer, the pilots were soon won over by Bader's strong personality and perseverance, especially in cutting through red tape to make the squadron operational again. Upon the formation of No. 12 Group RAF, No. 242 Squadron was assigned to the Group while based at RAF Duxford.
In June 1940 it moved to RAF Coltishall in eastern England, as part of No. 12 Group RAF and was involved in the Battle of Britain. During this period 242 Squadron moved to RAF Duxford as part of the Duxford Wing, 12 Group's Big Wing formation. In 1941 it started offensive sweeps and bomber escorts and convoy patrols.
Dispersed at Java
In December 1941 the squadron moved to the far East arriving at RAF Seletar on 13 January 1942. The situation was desperate and it had to move to Palembang on Sumatra where the squadron collapsed through lack of spares and was dispersed by 10 March 1942. On 29 December 1941 Pilot Officer M. C. Blanchard was reported missing believed killed after a mid-air collision off the coast of Ghar Hassan, Malta, during an operational flight. The collision was between Hurricane BE343 and Hurricane BE344.
Reformed on Spitfires
On 10 April 1942 the squadron re-formed at RAF Turnhouse, Scotland with the Supermarine Spitfire and was involved in coastal patrols. In October it was deployed to North Africa defending Algiers. It fought into Tunisia then moved on to Malta and was involved in the invasion of Sicily and the Salerno beach-head operations. In 1944 it was moved to Syria for a rest period before moving to Corsica where it was part of the invasion of southern France and attacks on northern Italy. The squadron was disbanded in Italy on 4 November 1944.
The squadron reformed again on 15 November 1944 at RAF Stoney Cross as a transport squadron, training on the Vickers Wellington then getting operational on the Short Stirling. By 1946 it had become an operator of the Avro York running scheduled freight services into India and to the Azores; in June 1946 it was located at RAF Oakington as part of No. 47 Group. In 1948 it became involved in the Berlin Air Lift operating from Wunstorf. After the air lift it returned to England and reequipped with Handley Page Hastings. The squadron was disbanded at RAF Lyneham on 1 May 1950.