Articulo de referencia

Fairey Fawn

The Fairey Fawn was a British single-engine light bomber of the 1920s. It was designed as a replacement for the Airco DH.9A and served with the Royal Air Force between 1924 and ...

The Fairey Fawn was a British single-engine light bomber of the 1920s. It was designed as a replacement for the Airco DH.9A and served with the Royal Air Force between 1924 and 1929.

Development

First prototype Fawn with short fuselage and single tank

The Fairey Fawn was designed by F Duncanson of Fairey Aviation as a replacement for the Airco DH.9A in the light day-bomber role, to meet the requirements of Specification 5/21 for an aircraft for reconnaissance and army cooperation duties. It was a development of the Fairey Pintailfloatplane, powered by a Napier Lion engine.

The first of three prototypes flew on 8 March 1923.[1] The second and third prototypes were fitted with lengthened fuselages to improve stability, and this was adapted for the production version.[2] The Fawn was fitted with fuel tanks above the top wing in order to meet Air Ministry safety requirements. These tanks posed a hazard to the pilots if the aircraft overturned on landing.

First prototype Fawn with lengthened fuselage, revised tail and overhead tanks; the basis for the production Fawn Mk II

A revised specification 20/23 was issued which added the bomber role. Two prototypes and 48 production Fawn Mk II aircraft were ordered against the new specification in August 1923 to re-equip the home based DH.9A squadrons of the RAF, although the first two production aircraft were completed as short fuselage Fawn Mk Is. The remainder of this order were full production long fuselage Fawn Mk IIs.[2] The Fawn Mk III was fitted with a more powerful 468 hp (350 kW) Lion V engine, while the Fawn Mk IV was fitted with a supercharged Lion VI engine.

Operational history

The Fawn entered service with 12 Squadron in March 1924, equipping two further regular squadrons, 11 Squadron and 100 Squadron.[3] Despite the fact that the Fawn was originally intended to replace all the home-based DH.9A squadrons, four more squadrons continued to be equipped with the DH.9A for several more years before being replaced by other types.

The Fawn was not a popular aircraft in RAF service, having little better performance than the aircraft it replaced, and having a poor view for the pilot owing to the bulky Lion engine.[4]

En 1926, el Fawn fue reemplazado en los tres escuadrones regulares por el Hawker Horsley y el Fairey Fox . Los aviones liberados se utilizaron para equipar dos escuadrones de la Reserva Especial y de la Fuerza Aérea Auxiliar, que permanecieron en servicio hasta 1929. [ 5 ]

Variantes

Cervatillo Mk I
Prototipo J6907 Fuselaje corto: motor Lion II de 450  hp (340  kW), posteriormente convertido a Mk III.
Prototipo J6908 construido con fuselaje largo.
Prototipo J6909 construido con fuselaje largo.
Se construyeron dos aviones Mk I adicionales como parte del lote principal de producción del Mk II.
Fawn Mk II
Prototipo J6990 según especificación 20/23, encargado en febrero de 1923.
Prototipo J6991 según especificación 20/23, encargado en febrero de 1923.
Fuselaje largo: motor Lion II de 450  hp (340  kW). Tipo principal de producción: se construyeron 48 aviones.
Fawn Mk III
Motor Lion V de 468  hp (349  kW). Se fabricaron 20 unidades.
Fawn Mk IV
Doce unidades del Mk III fueron modificadas con motores Lion VI sobrealimentados para una variante Mk IV propuesta, pero el proyecto fue abandonado y la designación Mk IV no se utilizó.

Operadores

 Reino Unido

Especificaciones (Fawn Mk III)

Dibujo de Fairey Fawn con tres vistas, de Les Ailes, 25 de marzo de 1926.

Datos de The British Bomber desde 1914 [ 7 ]

Características generales

  • Tripulación: Dos
  • Longitud: 32  pies 1  pulgada (9,78  m)
  • Envergadura: 15,21 m ( 49  pies 11 pulgadas )  
  • Altura: 3,63 m ( 11  pies 11 pulgadas )  
  • Superficie del ala: 550 pies  cuadrados  (51  )
  • Peso en vacío: 3481  lb (1579  kg)
  • Peso bruto: 5.834  lb (2.646  kg)
  • Planta motriz: 1 × motor Napier Lion de 12 cilindros, refrigerado por agua, de tipo flecha ancha , 468 hp (349 kW)  

Actuación

  • Velocidad máxima: 183 km/h  (114 mph , 99 nudos) a nivel del mar.  
  • Alcance: 650  millas (1050  km, 560  millas náuticas)
  • Techo de servicio: 13.850  pies (4.220  m)
  • Tiempo para alcanzar la altitud: 6 min 30 seg hasta 5000  pies (1500  m)

Armamento

Véase también

Desarrollo relacionado

Aeronaves de función, configuración y época comparables

Listas relacionadas

Referencias

  1. Mason 1994, pág. 148.
  2. 1 2 Taylor 1988, págs. 108–109.
  3. Thetford 1957, pág. 202.
  4. Mason 1994, págs. 149–150.
  5. Mason 1994, pág. 149.
  6. Thetford Aeroplane Monthly, febrero de 1993, pág. 10.
  7. Mason 1994, pág. 150.
  • Jarrett, Philip (enero de 1993). "De día y de noche – Parte 8: Historia del desarrollo del Fairey Fawn". Aeroplane Monthly . págs. 6–11 . ISSN 0143-7240 .  
  • Mason, Francis K. (1994). El bombardero británico desde 1914. Londres: Putnam Aeronautical Books. ISBN 0-85177-861-5.
  • Taylor, H. A. (1988). Fairey Aircraft desde 1915. Londres: Putnam. ISBN 0-370-00065-X.
  • Thetford, Owen (1957). Aeronaves de la Real Fuerza Aérea 1918–57 (1.ª  ed.). Londres: Putnam.
  • Thetford, Owen (febrero de 2003). "De día y de noche: parte 9: historial de servicio del Fairey Fawn". Aeroplane Monthly . págs. 6–10 . ISSN 0143-7240 .