Fairey Delta 2

Fairey Delta 2
Krajiny	Uk
Úlohu	Vysokorýchlostné výskumné lietadlá
Prvá muška	6. októbra 1954
Postavený	2

Komisia Rozprávková delta 2 alebo FD2 (interné označenie typu V v rámci Fairey) bolo britské nadzvukové výskumné lietadlo vyrábané spoločnosťou Fairey Aviation Company v reakcii na špecifikáciu ministerstva zásobovania pre špecializované lietadlo na vykonávanie vyšetrovaní letu a riadenia pri transonických a nadzvukových rýchlostiach. Medzi kľúčové vlastnosti tohto typu patrí prijatie delta krídla a ovisnutého nosa. 6. októbra 1954 uskutočnila Delta 2 svoj prvý let, ktorý letel testovací pilot Fairey Peter Twiss; Celkovo by sa vyrobili dve lietadlá. Delta 2 bolo posledným lietadlom, ktoré vyrobila spoločnosť Fairey ako nezávislý výrobca.

Zdrojový: Fairey Delta 2 na Wikipédii

BAC 221 Walk Around
Fotograf	Howard Mason
Lokalizácia	Múzeum vzdušných zbraní flotily
Fotografie	61

BAC 221 01

BAC 221 02

BAC 221 03

BAC 221 04

BAC 221 05

BAC 221 07

BAC 221 06

BAC 221 09

BAC 221 08

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Fairey Delta FD2 Walk Around
Fotograf	Meindert de Vreeze
Lokalizácia	Neznáme
Fotografie	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)
Typ	Experimental Supersonic Research Aircraft
National Origin	Veľká Británia
Výrobca	British Aircraft Corporation (BAC)
First Flight (Rebuilt)	May 1, 1964
Posádky	1 (Pilot)
Dĺžka	17.56 m (57 ft 7 in)
Rozpätie krídel	7.62 m (25 ft 0 in)
Maximálna rýchlosť	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.

Zobrazenia : 2096