Armstrong Siddeley Double Mamba
The Armstrong Siddeley Double Mamba was a turboprop aircraft engine developed from the Armstrong Siddeley Mamba engine in the late 1940s. It was produced in four variants ranging in power output from the ASMD.1 of 2,950shp to the ASMD.8 of 3,870shp, and was basically two Mamba engines joined side by side driving two four blade contra rotating propellers on a single hub through a common gearbox.
The engine was predominently used in the Fairey Gannet an aircraft carrier borne anti-submarine aircraft that was developed for the Fleet Air Arm of the Royal Navy(RNFAA), and featured the ability for one engine to be shut down in flight to extend an aircraft's endurance giving it single engine economy and twin engine performance.
Static starting was with a cartridge in a Rotax starter, Re-starting in flight used air speed air pressure.
The Fleet Air Arm of the Royal Australian Navy(RANFAA) purchased thirty six Fairey Gannets that included the Museum's machine XG789, and were powered by the ASMD.1 engine and served on the HMAS Melbourne.
The engine was predominently used in the Fairey Gannet an aircraft carrier borne anti-submarine aircraft that was developed for the Fleet Air Arm of the Royal Navy(RNFAA), and featured the ability for one engine to be shut down in flight to extend an aircraft's endurance giving it single engine economy and twin engine performance.
Static starting was with a cartridge in a Rotax starter, Re-starting in flight used air speed air pressure.
The Fleet Air Arm of the Royal Australian Navy(RANFAA) purchased thirty six Fairey Gannets that included the Museum's machine XG789, and were powered by the ASMD.1 engine and served on the HMAS Melbourne.
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TECHNICAL DATA
Length Diameter Compressor Combustors Maximum Power Overall pressure ratio Power to weight ratio Weight |
102.25in (2.597m) 52.8in (1.341m) 10 stage axial (double) Six combustion chambers (x2) 2,960eshp 5.35/1 1.36lbs/lb 2,170 lbs (984 kgs) |