Scottish Aviation Twin Pioneer

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Twin Pioneer
Air Atlantique Classic Flight Scottish Aviation Twin Pioneer
Type
Manufacturer Scottish Aviation
Maiden flight 1955
Primary user Royal Air Force
Number built 87
Developed from Scottish Aviation Pioneer

The Scottish Aviation Twin Pioneer was a British STOL transport aircraft of the 1950s built by Scottish Aviation Limited at Prestwick Airport, Scotland. It was designed with both civil and military operators in mind. It was conceived as a twin-engined version of the Pioneer light transport.

Powered by two Alvis Leonides 531 radial engines, it was a high-wing cabin monoplane with a triple fin and rudder assembly and fixed tailwheel undercarriage.

The military version could carry external stores such as bombs under stub wings. It was used extensively by British forces in the Malayan Emergency and the later confrontation in Borneo.

Contents

[edit] History

The prototype Twin Pioneer, registered G-ANTP, first flew at Prestwick Airport on June 25 1955. Flight trials proved that the aircraft had a very short landing run and the aircraft was displayed at the 1955 SBAC Show. Three pre-production aircraft were built for trials, and sales and demonstrations. Some of the first sales were as survey aircraft, to Rio Tinto Finance and Exploration Limited, and the Austrian and Swiss government survey departments. One aircraft became the first aircraft for the newly formed Royal Malaysian Air Force.

In 1958 the 33rd aircraft was used as a prototype for the Series 2 with Pratt & Whitney Wasp R-1340 radial engines which had been ordered by Philippine Air Lines. A Series 3 aircraft was also developed to use the improved Alvis Leonides 531 radial engine.

The Royal Air Force ordered 39 aircraft, which were built between 1958 and 1959, for use in Aden and the Far East.

[edit] Variants

[edit] Specifications (Twin Pioneer CC.Mk 1)

[edit] General characteristics

  • Crew: two pilots
  • Capacity: up to 13 troops or 2,000 lb (907 kg) of cargo
  • Length: 45 ft 3 in (13.79 m)
  • Wingspan: 76 ft 6 in (23.32 m)
  • Height: 12 ft 3 in (3.73 m)
  • Wing area: 670 ft² (62 m²)
  • Empty: 10,200 lb (4,627 kg)
  • Loaded: lb ( kg)
  • Maximum takeoff: 14,600 lb (6,622 kg)
  • Powerplant: 2x Alvis Leonides 531, 640 hp (564 kW) each

[edit] Performance

  • Maximum speed: 165 mph (266 km/h)
  • Range: 791 miles (1287 km)
  • Service ceiling: 20,000 ft (6,098 m)
  • Rate of climb: 1,250 ft/min (381 m/min)
  • Wing loading: lb/ft² ( kg/m²)
  • Power/Mass: hp/lb ( kW/kg)

[edit] Operators

[edit] Civil operators

[edit] Military operators

[edit] Related content

Related development: Scottish Aviation Pioneer

Comparable aircraft:

Designation sequence:

[edit] See also

v • d • e
Lists relating to aviation

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Notable military accidents and incidents · Notable airline accidents and incidents · Famous aviation-related deaths
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[edit] External links


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