Fairey Delta 1
Fairey Delta 1 | |
---|---|
Fairey Delta 1 | |
Role | Research aircraft |
National origin | United Kingdom |
Manufacturer | Fairey Aviation Company |
First flight | 12 March 1951 |
Retired | 1956 |
Number built | 1 |
The Fairey Delta 1 (FD1) was a research aircraft developed and produced by British aircraft manufacturer Fairey Aviation. It holds the distinction of being the first British-designed aircraft to be furnished with a delta wing.
Initially referred to as the Type R, work on the aircraft had begun with the intention of developing a ramp-launched
The first aircraft was produced at Fairey's facility in
Design and development
What would become the Fairey Delta 1 (FD1) had been originally conceived internally by Fairey as a
During July 1946, Fairey was issued with a contract to further develop their VTO concept aircraft.
While the project was at an early stage, Fairey was actively advocating the value of their research programme to various British official; these efforts attracted the attention of the Ministry of Supply (MoS), as well as some interest from both the Royal Navy and the Royal Air Force.[3] After evaluating the concept, the MoS decided that it would want the aircraft produced as a more conventional jet-powered research vehicle to fulfil the requirements of Specification E.10/47.[2] Three aircraft were ordered with the name "Fairey Delta" applied to the project; subsequently, the name was changed to Fairey Delta 1.[2]
The Fairey Type R design was a compact mid-wing tailless delta monoplane; aviation periodical Flight observed the aircraft to be "of exceptionally small dimensions".[5] It had a circular cross-section fuselage and a single engine air inlet located at the extreme front. The powerplant adopted for the aircraft was a single Rolls-Royce Derwent 8 centrifugal turbojet engine. According to aviation author Robert Jackson, the FD1 was intended to be outfitted with larger booster rockets to facilitate ramp take-offs, during which control would have been maintained via four swivelling jet nozzles on the rear fuselage.[1][4] Although designed as a transonic aircraft, the FD1 had a short-coupled, "portly" appearance, completely at odds with Fairey's next design, the sleek and elegant Delta 2.[8]
Fairey stated that the aircraft's delta wing possessed several attributes that were favourable for high speed flight, including relatively low drag characteristics and a comparatively stiff structure, along with stowage space for both fuel and armaments.[6] Although originally envisaged for ramp launching, the FD1 was fitted with a tricycle undercarriage.[1] The FD1 was fitted with a small horizontal delta-shaped control surface on the top of the tailfin; this surface was intended to eliminate adverse instances of "serious pitching as it gathered speed."[2] During early development, a maximum speed of 587 mph as well as the ability to attain an altitude of 30,000 feet within four and a half minutes were envisioned; however, the addition of the new tail surface had the consequence of severely limiting the aircraft's top speed to a relatively pedestrian 345 mph (555 km/h).[1]
Operational history
The only FD1 to be completed was built at Fairey's
The FD1 underwent extensive flight testing, which largely focused on exploring its lateral and longitudinal stability, as well as its overall flying characteristics.
During 1953, the flight test programme was terminated by the Air Ministry, resulting in the withdrawal of state support for the FD1.[10] Only a single FD1 was built; the second (VX357) and third (VX364) airframes were cancelled prior to production commencing.[2] This decision was not regarded as being a particularly heavy blow to Fairey, even in terms of the firm's ambitions to explore high speed delta wing aircraft, as detailed design work had already commenced on the more capable and sleeker-looking Fairey Delta 2 during the previous year.[10]
Following the programme's cancellation, the sole aircraft continued to be flown for a time by Fairey to perform trials work.[11] On 6 February 1956, the FD1 was damaged beyond repair in a landing accident at Boscombe Down.[11] In October 1956, the aircraft was transported by road for use as a static target on the Shoeburyness weapons range, after which it was later scrapped.[11] Fairey had spent £382,000 of their own money on the FD1.[12]
Specifications (Fairey Delta 1)
Data from Jane's Pocket Book of Research and Experimental Aircraft[13]
General characteristics
- Crew: 1
- Length: 26 ft 3 in (8.00 m)
- Wingspan: 19 ft 6.5 in (5.956 m)
- Height: 19 ft 6.5 in (5.956 m)
- Gross weight: 6,800 lb (3,084 kg)
- Powerplant: 1 × centrifugal-flow turbojetengine, 3,600 lbf (16 kN) thrust
Performance
- Maximum speed: 628 mph (1,011 km/h, 546 kn)
See also
Related development
Aircraft of comparable role, configuration, and era
Related lists
References
Citations
- ^ a b c d e Jackson 2007, p. 171.
- ^ a b c d e f g Winchester 2005, p. 254.
- ^ a b Hobbs 2014, p. 309.
- ^ a b c van Pelt 2012, p. 149.
- ^ a b c Flight 1951, p. 348.
- ^ a b Flight 1951, pp. 348-349.
- ^ van Pelt 2012, pp. 149-150.
- ^ a b c Flanagan 2017, p. 95.
- ^ Jackson 2007, pp. 171-172.
- ^ a b Jackson 2007, p. 172.
- ^ a b c Chorlton 2012, p. 104.
- ^ "A Fairey 'Forty Years' AGM" (PDF), Flight: 826, 2 December 1955
- ^ Taylor 1976, p. 91.
Bibliography
- Buttler, Tony and Jean-Louis Delezenne. X-Planes of Europe: Secret Research Aircraft from the Golden Age 1946-1974. Manchester, UK: Hikoki Publications, 2012. ISBN 978-1-902-10921-3
- Chorlton, Martyn (ed). Fairey - Company Profile 1915-1960. Cudham, Kent, England:Kelysey Publishing, 2012. ISBN 978-1-907426-60-5.
- Flanigan, William A. Aviation Records in the Jet Age. Specialty Press, 2017. ISBN 978-1-580072-30-4.
- Hobbs, David. British Aircraft Carriers: Design, Development & Service Histories. Seaforth Publishing, 2014. ISBN 978-1-473853-69-0.
- Jackson, Robert. Britain's Greatest Aircraft. Pen and Sword, 2007. ISBN 978-1-844156-00-9.
- Pelt, Michel van. Rocketing Into the Future. Springer Science & Business Media, 2012. ISBN 978-1-461432-00-5.
- Sturtivant, Ray. British Research and Development Aircraft. Somerset, UK: Haynes Publishing Group, 1990. ISBN 0-85429-697-2.
- Taylor, H. A. Fairey Aircraft since 1915. London: Putnam, 1974. ISBN 0-370-00065-X.
- Taylor, John W.R. Jane's Pocket Book of Research and Experimental Aircraft. London: Macdonald and Jane's Publishers Ltd, 1976. ISBN 0-356-08409-4.
- Twiss, Peter. Faster than the Sun. London: Grub Street Publishing, 2000. ISBN 1-902304-43-8.
- Winchester, Jim. X-Planes and Prototypes. London: Amber Books Ltd., 2005. ISBN 1-904687-40-7.
- "From Dunne to Delta", Flight: 348, 23 March 1951