It was during a visit by
Frank Whittle to Gloster that Carter became involved in the development of
jet aircraft. At the time Gloster were working on a twin-boom fighter, for specification F.18/37 - also used for the
Hawker Typhoon, to be powered by a
Napier Sabre piston engine which attracted the attention of Whittle who thought that the layout would be suitable for his new engine. Although the design Whittle saw would not progress beyond the project stage, within a few weeks, Carter was asked by the
Air Ministry to submit plans for a brand new aircraft to use Whittle's engine. He agreed to the project before seeing the engine for himself. While not impressed with the engine itself, when he saw it running he was convinced that it could develop into a suitable powerplant given what they had managed to achieve in the somewhat primitive conditions at
Lutterworth. The
Gloster E.28/39 was designed primarily to prove the concept of
turbojet powered flight, the Air Ministry however insisted that the design include provision for four
guns and 2,000 rounds of ammunition even if these were not fitted in the
prototype. The contract to build the E.28/39 also known as the Pioneer was placed with Gloster on 3 February 1940. The aircraft was built in secret at the Regents garage, Cheltenham and first flew on 15 April 1941 at
RAF Cranwell, becoming the first British and Allied jet aircraft. Even before the Pioneer flew, the Air Ministry encouraged Carter to design a practical jet fighter since the Pioneer was not suitable because it was unlikely that an engine of at least thrust would be available in the near future. Carter therefore decided that the design would require two engines. The result was designated the F.9/40 which first flew on 5 March 1943 and would find worldwide fame as the
Gloster Meteor. His later designs included the
E.1/44. He supervised the design of the Gloster GA-5 delta-wing fighter (later the
Gloster Javelin which first flew in 1951 from
RAF Moreton Valence south of Gloucester), which was designed by Richard Walker (Gloster's chief designer) and powered by
Armstrong Siddeley Sapphire engines. ==Honours==