The design of the DH.106 was developed from the recommendation for a jet powered transport aircraft, which had been issued by the Second Brabazon Committee towards the end of 1943. This recommendation, known as Type IV, was passed in early 1944 to de Havilland, who received authorisation to proceed with the aircraft in February 1945. After detailed discussion about the design with BOAC, the Ministry of Supply ordered two prototypes in September 1946, with BOAC submitting an order for eight aircraft in January 1947. The type received the name Comet in December 1947.