British Overseas Airways Corporation
On 24 November 1939, BOAC was created by Act of Parliament to become the British state airline, formed from the merger of Imperial Airways and British Airways Ltd. The companies had been operating together since war was declared on 3 September 1939, when their operations were evacuated from the London area to Bristol. On 1 April 1940, BOAC started operations as a single company. Following the Fall of France (22 June 1940), BOAC aircraft kept wartime Britain connected with its colonies and the allied world, often under enemy fire, and initially with desperate shortages of long-range aircraft. During the war, the airline was sometimes loosely referred to as 'British Airways', and aircraft and equipment were marked with combinations of that title and/or the Speedbird symbol and/or the Union Flag.
British Overseas Airways Corporation
In late 1942, the new hard-surface airport at Lisbon permitted the use of civil registered Liberators to North and West Africa and Egypt.
Arguably, BOAC's most famous wartime route was the 'Ball-bearing Run' from Leuchars to Stockholm (Bromma) in neutral Sweden. Initially flown with Lockheed 14s and Lockheed Hudson transports, the unsuitable Armstrong Whitworth Whitley "civilianised" bombers were also used between 9 August and 24 October 1942 ("Civilianised" meant that all the armaments and unnecessary guns and turrets had been removed, a legal requirement for operating a commercial civilian service to a neutral country). The much faster civilian registered de Havilland Mosquitoes were introduced by BOAC in 1943. The significance of the ball-bearings is debatable, but these night flights were an important diplomatic gesture of support for neutral Sweden which had two DC-3s shot down on its own service to Britain. Other types used to Sweden included Lockheed Lodestars, Consolidated Liberators, and the sole Curtiss CW-20 (C-46 prototype) which BOAC had purchased; these types had more payload, and some had the range to avoid the German-controlled Skaggerak direct route.