Hawker P.1121 Staff having been unable to understand the concept of the multi-purpose functionality of the aircraft, which would become commonplace on later aircraft. While seeking a new project to take the place of the P.1121, Camm soon began work upon another new and radical aircraft design, designated as the Hawker Siddeley P.1127. The P.1127 would become the Hawker Siddeley Harrier, the first effective vertical take-off and landing (VTOL) combat aircraft. The Hawker P.1121 was envisioned as being one of the first British-built supersonic fighter aircraft, being projected to be capable of speeds of up to Mach 2.5. It was to have
Hawker Siddeley Andover operated by: As of July 2013 only one Andover remained in commercial service, operated by Kenyan company Wilken Aviation. The aircraft was damaged beyond repair in a non-fatal accident at Malakal Airport in South Sudan on 10 November 2015, leaving no aircraft of the type in commercial service. The following aircraft are on public display: Hawker Siddeley Andover The Hawker Siddeley HS 780 Andover is a twin-engined turboprop military transport aircraft produced by Hawker Siddeley for the Royal Air Force (RAF), developed from the Avro-designed HS 748 airliner. The Andover was named after the Avro Andover, a biplane transport used