Airspeed Courier (Transport plane)

The Airspeed AS.5 Courier was a British six-seat single-engined light aircraft, designed and produced by the British aircraft manufacturer Airspeed Limited at Portsmouth. It was the first British aircraft fitted with a retractable undercarriage to go into quantity production. Development work on the Courier started in 1931, envisioned as an advanced aircraft intended primarily for private owner-pilots. Its ambitious design, including its unorthodox undercarriage, attracted the attention of the British aviation pioneer, Sir Alan Cobham, who saw it as a suitable aircraft for demonstrating his airborne refuelling techniques for long distances flights. Following order confirmation in August 1932, a single prototype was constructed, performing its maiden flight on 10 April 1933. The Courier quickly proved itself to be of sound design and laudable performance, encouraging Airspeed to commence small quantity production months later. The Courier was primarily purchased by civilian customers, being used as an early airliner, racing aircraft and flying testbed. It was also used as a communications aircraft by the Royal Air Force during the Second World War. Only a single aircraft flew briefly in the postwar era.