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de Havilland Gyron Junior
The de Havilland Gyron Junior was a military turbojet engine design of the 1950s developed by the de Havilland Engine Company and later produced by Bristol Siddeley. The Gyron Junior was a scaled-down derivative of the de Havilland Gyron.
Contents
Operational history
Only a little more widely used than the Gyron, it did at least enter serial production for the Blackburn Buccaneer S.1 twin-engined Naval strike aircraft. However it was never a successful engine in service. The Bucaneer S.1 was criticised for being underpowered and the later and more numerous S.2 used the more powerful Rolls-Royce Spey instead.
Twin Gyron Juniors, with afterburners, were also used to power the Bristol 188 Mach 2 supersonic research aircraft. The Rolls-Royce Avon had been considered, but only the Gyron Junior was used in practice. The program was a disappointment, if not a failure, and was terminated early without achieving all of the high-speed high-temperature trials that had been intended. The limitation was the poor fuel consumption of the Gyron Junior. Whilst it did allow the intended Mach 2 speed to be achieved, endurance at any speed was so restricted by fuel limits that it was impossible to study the long-term "thermal soaking" of a supersonic airframe, as intended. In fairness to the Gyron Junior, it's uncertain that any engine of the same period could have achieved much better.
Variants
Ref:[1]
- Gyron Junior DGJ.1 (or P.S.43), used on Buccaneer S. Mk.1
- Gyron Junior DGJ.10R (or P.S.50), afterburning version for Bristol 188, thrust 14,000 lb s.t. (62.3 kN)
Applications
- 40 built[2]
- Only 2 built
- Testing only, 1 production FAW Mk.1 modified[3]
- Intended application, not built
Engines on display
A de Havilland Gyron Junior is on display at the de Havilland Aircraft Heritage Centre, London Colney, Hertfordshire.
Specifications (Gyron Junior DGJ.1)
See also
Related development
Related lists
Lists relating to aviation | |
|---|---|
| General | Timeline of aviation · Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines |
| Military | Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft |
| Notable incidents and accidents | Military aviation · Airliners · General aviation · Famous aviation-related deaths |
| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
References
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs namedGunston - ↑ Jackson, A.J. (1968). Blackburn Aircraft since 1909. London: Putnam Publishing, 494. ISBN 0 370 00053 6.
- ↑ James, Derek N. (1971). Gloster Aircraft since 1917. London: Putnam Publishing, 322, 326, 370. ISBN 0 370 00084 6.
External links
- "British Jet Engine Website" entryTemplate:Dead link
- Photo of DH Gyron JuniorTemplate:Dead link
- Photo of Gyron Junior
Template:De Havilland aeroengines
Lists relating to aviation | |
|---|---|
| General | Timeline of aviation · Aircraft · Aircraft manufacturers · Aircraft engines · Aircraft engine manufacturers · Airports · Airlines |
| Military | Air forces · Aircraft weapons · Missiles · Unmanned aerial vehicles (UAVs) · Experimental aircraft |
| Notable incidents and accidents | Military aviation · Airliners · General aviation · Famous aviation-related deaths |
| Records | Flight airspeed record · Flight distance record · Flight altitude record · Flight endurance record · Most produced aircraft |
| This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "De Havilland Gyron Junior". |
