The Armstrong Siddeley Double Mamba is a turboprop engine design developed in the late 1940s of around 3,000–4,000 hp. It was used mostly on the Fairey Gannet anti-submarine aircraft developed for the
Preserved Double Mamba at the Imperial War Museum Duxford
Fairey Gannet flying with one half of its Double Mamba engine shut down
Cut away of a double mamba power unit at The Flambards Experience in Cornwall
Double Mamba in a non-display aircraft at the Fleet Air Arm Museum (Australia).
Armstrong Siddeley Mamba
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The Armstrong Siddeley Mamba was a British turboprop engine produced by Armstrong Siddeley in the late 1940s and 1950s, producing around 1,500 effective horsepower.
Armstrong Siddeley Double Mamba
…anti-submarine aircraft developed for the Fleet Air Arm of the Royal Navy. 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. Engine starting was by cartridge; forced air restart was possible in…
Mamba engine on display at Sheffield Hallam University
The Armstrong Siddeley Mamba-powered Douglas C-47B Dakota testbed in 1954 showing the slim outline of the Mambas
A Swiss-Mamba SM-1 on display next to an EFW N-20 fighter jet
Mamba and propeller from the Apollo airliner