Hunting H.126
| Hunting H.126 | |
|---|---|
 Hunting H.126 |
|
| Type: | Experimental airplane |
| Design country: | |
| Manufacturer: | |
| First flight: |
March 26, 1963 |
| Commissioning: |
Development stopped in 1972 |
| Number of pieces: |
1 |
The Hunting H.126 was a British experimental aircraft that was used to investigate the concept of inflated flaps . Only one aircraft was built and flown during about a hundred test flights at the Aerodynamics Flight Test Department of the Royal Aircraft Establishment in Bedford . It was then used for the tests in the wind tunnel of NASA transferred to the United States and arrived later in the RAF Museum Cosford.
construction and development
The H.126 was developed on the basis of the specification ER.189D of the Ministry of Aviation to investigate the "jet flap principle". The principle of the jet flap was proposed by the National Gas Turbine Establishment and patented in 1952. This was then investigated by the NGTE and the Royal Aircraft Establishment.
The aircraft was only developed for test purposes at low speeds, so that a retractable landing gear could be dispensed with. The shoulder- wing wing had a series of struts that were not part of the structure, but compressed air lines for the blown flaps. The rear control surfaces consisted of a small triangular T-tail, similar to that of the Gloster Javelin . The fuselage was simply constructed, similar to the BAC Jet Provost, but with a smaller cockpit for a pilot. The air inlet for the single Bristol-Siddeley-Orpheus engine was in the bow. The jet flap system consisted of a row of sixteen nozzles along the trailing edge of the two wings, which were fed by about half of the hot exhaust gases from the engine. About ten percent of the engine exhaust came to small nozzles on the wing tips to provide thrust for roll control at low airspeed. A similar system was later used on the Hawker Siddeley Harrier .
In 1959, Hunting was commissioned to build two aircraft. The first with the RAF serial number XN714 flew on March 26, 1963. It was painted yellow with a matt black anti-glare area on the bow in front of the cockpit. Completion of the second aircraft, the XN719, was canceled in mid-1962. Between 1963 and November 9, 1967, the XN714 flew 140 hours in 318 flights. From April 1969 the aircraft was tested by NASA , returned in May 1970 and stored in Bedford until 1972. It has been on display at the RAF Cosford Museum since 1974.
Technical specifications
| Parameter | Data |
|---|---|
| crew | 1 |
| Passengers | |
| length | 15.29 m (50 ft 2 in) |
| span | 13.82 m (45 ft 4 in) |
| height | 4.72 m (15 ft 6 in) |
| Wing area | 20.5 m² (221 ft²) |
| Wing extension | 9.3 |
| Wing profile | NACA 4424 |
| Empty mass | 3,738 kg (8,240 lb) |
| Max. Takeoff mass | 4,872 kg (10,740 lb) |
| Minimum speed | 51 km / h (32 mph) |
| Top speed | |
| Service ceiling | |
| Range | |
| Engines | 1 × Turbojet Bristol-Siddeley Orpheus (BOr.3) Mk.805 with 17.83 kN (4,000 lbf) power |
literature
- Barry Jones: Hunting's High Lifter - British post-war experimental jets, Part 17 . In: Airplane Monthly January 1995, pp. 12-19
- Tony Buttler, Jean-Louis Delezenne: X-Planes of Europe. Hikoki Publications. ISBN 978-1-902109-21-3 .
Web links
- Royal Air Force Museum - H. 126
- British Aircraft Directory, Hunting H.126 ( Memento of September 30, 2007 in the Internet Archive )
- Bristol Engine data ( Memento of October 10, 2007 in the Internet Archive )
Individual evidence
- ↑ Flight 1963, p. 454
- ^ Andrew Simpson: Individual History - Hunting H.126 XN714. (PDF; 60 kB) In: www.rafmuseum.org.uk. 2012, accessed on May 2, 2020 .
- ↑ Hunting H126. In: www.rafmuseum.org.uk. Retrieved May 2, 2020 .
- ↑ Jane's , Taylor 1976, p. 23.