The '''Mamba''' was Armstrong-Siddeley's gas turbineturboprop engine design of around 1,500 hp (1,100 kW). It was used for the Short Seamew.
The Mamba was developed into the form of the Armstrong-Siddeley Double Mamba on the Fairey Gannetanti-submarine aircraft developed for the Royal Air Force.
Engine starting was by cartridge.
The Mamba has the distinction of being the first turboprop engine to power the DouglasDakota. In 1949, a Dakota testbed aircraft was converted by Armstrong-Siddeley to take two Mambas. (This aircraft was later re-converted to take the original engines.)
The Mamba was produced in various series. The numbering followed the convention:
AS = Armstrong-Siddeley
M = Mamba
num = model