| General information | |
|---|---|
| Type | Transport |
| Manufacturer | Scottish Aviation |
| Primary users | Royal Air ForceMalaysia Nepal |
| Number built | 87 |
| History | |
| Introduction date | 1956 |
| First flight | 25 June 1955 |
| Retired | 1972 |
| Developed from | Scottish Aviation Pioneer |

Powered by two Alvis Leonides radial engines, the Twin Pioneer was a high-wing cabin monoplane with a triple fin and rudder assembly and fixed tailwheel undercarriage. The prototype Twin Pioneer, registered G-ANTP, first flew at Prestwick Airport on 25 June 1955. Flight trials demonstrated that the aircraft had a very short landing run and the aircraft was displayed at the September 1955 Society of British Aircraft Constructors Show at Farnborough.
The military version could carry external stores such as bombs under the stub wings. One aircraft became the first aircraft for the newly formed Royal Malaysian Air Force when it was delivered on 16 January 1962; the type served with the air force for 12 years.
The Royal Air Force ordered 39 aircraft, which were built between 1958 and 1959, deployed in Aden and the Far East. It was used extensively by British forces in the Malayan Emergency and the later confrontation in Borneo . In August 1959, No. 78 Squadron RAF at Khormaksar received some Twin Pioneers to supplement its single engine Pioneers. The Twin Pioneers were employed in moving troops and supplies around the wilderness and on occasions lending support to the Sultan of Oman . A series of double engine failures caused problems with the squadron losing two aircraft on the same day. Unsuitable soft and hard landing strips were also causes of failures during landings.Ceiling
Range
Aircraft Speed
Max Crew
|
|
|---|---|
|
||||
|---|---|---|---|---|
|
||||
|---|---|---|---|---|
Although mainly used in military operations, the Twin Pioneer was also successful as a commercial transport for operation in areas without proper airfields, where unprepared surfaces were often the norm.
Other squadrons that operated the Twin Pioneers were No. 152 Squadron RAF based at Muharraq in Bahrain and No. 21 Squadron RAF,
Early in its operational life in 1957 the Twin Pioneer suffered two fatal accidents due to fatigue failure which caused the outer panel of the wing to detach from the aircraft in flight.