Английская Википедия:Armstrong Siddeley Double Mamba

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Шаблон:Short description Шаблон:Use dmy dates Шаблон:Use British English

The Armstrong Siddeley Double Mamba is a turboprop engine design developed in the late 1940s of around Шаблон:Cvt. It was used mostly on the Fairey Gannet anti-submarine aircraft developed for the Fleet Air Arm of the Royal Navy.

Design and development

The Double Mamba (rarely known as the Twin Mamba) was a development of the Armstrong Siddeley Mamba with two Mambas driving contra-rotating propellers through a combining gearbox.[1]

Engine starting was by cartridge, however, forced air restart was achieved in flight. One engine could be shut down in flight to conserve fuel. Shutting down one engine also stopped one of the propellers.

Variants

Файл:Fairey Gannet T.2 XA522 Farnborough 10.09.55 edited-2.jpg
Fairey Gannet flying with one half of its Double Mamba engine shut down
ASMD.1
Шаблон:Cvt (2 x ASMa.3) used on Fairey Gannet A.S. Mk.1 and Blackburn B-88
ASMD.3
Шаблон:Cvt (2 x ASMa.5) used on Fairey Gannet A.S. Mk.4
ASMD.4
Шаблон:Cvt (2 x ASMa.6) used on Fairey Gannet AEW Mk.3
ASMD.8
Шаблон:Cvt (2 x ASMa.6) used on Fairey Gannet AEW Mk.3

Applications

The Double Mamba engine was also proposed for the Westland Westminster, a 30-seat helicopter that was later built as a prototype powered by a pair of Napier Eland E220 turboshaft engines.

Engines on display

Шаблон:Unreferenced section Preserved Double Mamba engines are on public display at the:

Specifications (ASMD.3)

Файл:Gannet engine.jpg
Cut away of a double mamba power unit at The Flambards Experience in Cornwall
Файл:Double Mamba front - in-situ.JPG
Double Mamba in a non-display aircraft at the Fleet Air Arm Museum (Australia).
Файл:Double Mamba side - in-situ.JPG
Double Mamba - side view in-situ.

Шаблон:Jetspecs

See also

Шаблон:Aircontent

References

Notes

Шаблон:Reflist

Bibliography

Шаблон:Refbegin

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. Шаблон:ISBN

Шаблон:Refend

External links

Шаблон:Commons category

Шаблон:Armstrong Siddeley aeroengines

  1. Gunston 1989, p.20.