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Armstrong Siddeley Double Mamba Aircraft Engine

The Armstrong Siddeley Double Mamba was two ASM-3 turbo-shaft engines mounted side by side and geared at the front to drive a coaxial pair of four bladed contra-rotating propellers, they could be used together for maximum power or singly for cruse economy or in case of engine failure. The Armstrong Siddeley Double Mamba was developed in the late 1940's and was only ever used on the Royal Navy's Fairey Gannet which were operational from 1949 until 1978.

Armstrong Siddeley Double Mamba Aircraft Engine

 

Armstrong Siddeley Double Mamba ASMD.3 Specifications:

  • Type: Twin turboprop engine
  • Length: 102.25 in (2,597 mm)
  • Diameter: 52.8 in (1,341 mm)
  • Dry weight: 2,170 lb (984 kg)
  • Compressor: 10 stage axial (x2)
  • Combustors: Six combustion chambers (x2)
  • Maximum power output: 2,960 eshp (2,207 kW)
  • Overall pressure ratio: 5.35:1
  • Power-to-weight ratio: 1.36 eshp/lbm
 

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Armstrong Siddeley Double Mamba Aircraft Engine picture and Specifications

 

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