Fairey Delta 2

Fairey Delta 2
País	Uk
Papel	Aviones de investigación de alta velocidad
Primera mosca	6 de octubre de 1954
Construido	2

el Fairey Delta 2 o FD2 (designación interna Tipo V dentro de Fairey) fue un avión de investigación supersónico británico producido por la Fairey Aviation Company en respuesta a una especificación del Ministerio de Suministros para un avión especializado para realizar investigaciones sobre vuelo y control a velocidades transónicas y supersónicas. Las características clave del tipo incluyen la adopción de un ala delta y una nariz caída. El 6 de octubre de 1954, el Delta 2 realizó su primer vuelo, pilotado por el piloto de pruebas de Fairey, Peter Twiss; Se produciría un total de dos aviones. El Delta 2 fue el último avión producido por Fairey como fabricante independiente.

Fuente: Fairey Delta 2 en Wikipedia

BAC 221 Walk Around
Fotógrafo	Howard Mason
Localización	Museo del Brazo Aéreo de la Flota
Fotos	61

BAC 221 01

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BAC 221 04

BAC 221 05

BAC 221 07

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BAC 221 09

BAC 221 08

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Fairey Delta FD2 Walk Around
Fotógrafo	Meindert de Vreeze
Localización	Unknow
Fotos	25

General Characteristics and Role

The BAC 221 was a highly specialized British research aircraft developed to support the Concorde supersonic transport program. It was not a “new” airframe from scratch, but rather a total reconstruction of the record-breaking Fairey Delta 2 (WG774). The primary objective of the BAC 221 was to investigate the aerodynamic behavior of the ogival (ogee) slender delta wing at high speeds. This specific wing shape was critical for Concorde’s success, balancing high-speed efficiency with manageable low-speed handling. The aircraft featured a significantly lengthened fuselage and a much taller landing gear to accommodate the high angles of attack required during landing.

Property	Typical Value (BAC 221)
Tipo	Experimental Supersonic Research Aircraft
National Origin	Reino Unido
Fabricante	British Aircraft Corporation (BAC)
First Flight (Rebuilt)	May 1, 1964
Equipo	1 (Pilot)
Longitud	17.56 m (57 ft 7 in)
Envergadura	7.62 m (25 ft 0 in)
Velocidad máxima	Mach 1.65 (Approx. 1,700 km/h)

Powerplant and Wing Design

Engine: 1 x Rolls-Royce Avon RA.28R afterburning turbojet.
Engine Thrust: 10,000 lbf dry / 14,000 lbf with reheat.
Ogival Wing: The centerpiece of the modification, this “ogee” wing replaced the straight-tapered delta of the FD2 to mimic the planned planform for Concorde.
Landing Gear: To handle the nose-high landing attitude of the slender delta, a completely new, taller undercarriage was fitted, utilizing components from the English Electric Lightning.
Droop Nose: Retained and refined from the Fairey Delta 2, the entire cockpit and nose section could be tilted downwards to allow the pilot to see the runway during approach.
Instrumentation: Equipped with extensive flight-test sensors and a camera mounted in a fin-tip fairing to record airflow patterns over the wing using wool tufts.

Service History and Preservation

RAE Bedford: Following its maiden flight, the aircraft was delivered to the Royal Aircraft Establishment (RAE) at Bedford, where it conducted nearly a decade of high-speed trials.
Flight Research: While the Handley Page HP.115 tested the low-speed characteristics of the delta wing, the BAC 221 provided the vital supersonic data needed to finalize the Concorde’s flight control systems.
Retirement: The aircraft was retired in 1973 after the Concorde prototypes had already begun their own successful test flights.
Current Status: Today, the BAC 221 is preserved and on display at the Fleet Air Arm Museum in Yeovilton, Somerset. It is positioned directly alongside the British Concorde prototype (G-BSST), allowing visitors to see the direct evolution of the wing design.

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