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Vickers Type 143
The Vickers Type 143 or Bolivian Scout was a British single-seat fighter biplane designed and built by Vickers in 1929-1930. Six were built for Bolivia in 1930, which used the survivors in the Chaco War against Paraguay.
Contents
Design and development
Early in 1929, Bolivia, which was engaged in border disputes with Paraguay over the Gran Chaco region, and was trying to build up its air force[1], placed an order with Vickers for six fighter aircraft, the Vickers Type 143. The Type 143, or Bolivian Scout , was a development of the earlier Vickers Type 141 fighter, with the Type 141's Rolls-Royce Kestrel engine replaced by a Bristol Jupiter VIA, already powering other aircraft used by the Bolivian Air Force, and a stronger undercarriage to cope with the rough airfield surfaces in Bolivia [2]. It was an all-metal, single-seat, biplane aircraft, with single-bay wings.
The Type 143 first flew on 11 June 1929, and successfully met all performance criteria [2]. One of the six aircraft was evaluated by the Aeroplane and Armament Experimental Establishment (A & AEE) at Martlesham Heath [2] before delivery to Bolivia.
A seventh aircraft, the Vickers Type 177 was built as a private venture to meet the requirements of Air Ministry Specification N.21/26 for a naval fighter, being fitted with a Jupiter XF engine and steerable wheel braking to aid on-deck manoeuvering. The Type 177 first flew on 26 November 1929 [3], and while it was shown to have a maximum speed of 190 mph (310 km/h)[4], with the Hawker Nimrod, not designed against this specification, chosen instead to meet the Fleet Air Arm's requirement for a fighter.[4]
Operational history
Delivery of the six Type 143s to Bolivia began in January 1930 [5]. While the type proved popular in Bolivian service,[2] three of the six had been written off by the time that the border disputes between Bolivia and Paraguay escalated into the Chaco War. The three remaining Type 143s continued to serve in the Chaco War until superseded by Curtiss Hawks [2], damaging at least one Paraguayan Wibault 73 in air-to-air combat[5].
Variants
- Vickers Type 143
- Six aircraft for Bolivia, powered by 450 hp (340 kW) Bristol Jupiter VIA engine.
- Vickers Type 177
- One prototype Naval Fighter, evaluated for Fleet Air Arm, powered by 540 hp (400 kW) Bristol Jupiter XFS engine. No production.
Operators
- Bolivian Air Force received 6 aircraft.
- Fleet Air Arm tested one prototype.
Specifications (Type 143)
Data from The Complete Book of Fighters[5]
General characteristics
- Crew: One
- Length: 27 ft 10½ in (8.50 m)
- Wingspan: 34 ft 0 in (10.36 m)
- Height: 11 ft 3 in (3.43 m)
- Wing area: 336 ft² (31.2 m²)
- Empty weight: 2,246 lb (1,019 kg)
- Loaded weight: 3,120 lb (1,415 kg)
- Powerplant: 1× Bristol Jupiter VIA 9 cylinder air cooled radial, 450 hp (336 kW)
Performance
- Maximum speed: 130 kn (150 mph, 241 km/h) at 11,500 ft (3,500 m)
- Service ceiling: 20,000 ft (6,100 m)
- Wing loading: 9.29 lb/ft² (45.4 kg/m²)
- Power/mass: 0.144 hp/lb (0.237 kW/kg)
- Climb to 13,100 ft (3,990 m): 10 min
Armament
See also
Related development
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References
Notes
Bibliography
- Andrews, E.N. and E.B. Morgan. Vickers Aircraft Since 1908, Second edition. London: Putnam, 1988. ISBN 0-85177-815-1.
- Green, W. and Gordon Swanborough. The Complete Book of Fighters. New York: Smithmark, 1994. ISBN 0-8317-3939-8.
- Mason, Francis K. The British Fighter since 1912. Annapolis, Maryland: Naval Institute Press, 1992. ISBN 1-55750-082-7.
External links
Lists relating to aviation | |
|---|---|
| General | Timeline of aviation · Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines |
| Military | Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft |
| Notable incidents and accidents | Military aviation · Airliners · General aviation · Famous aviation-related deaths |
| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Vickers Type 143". |
