The Mamba was a compact engine [1] with a 10-stage axial compressor, six combustion chambers and a two-stage power turbine.

This was essentially two Mambas lying side-by-side and driving contra-rotating propellers separately through a common gearbox.

A turbojet version of the Mamba was developed as the Armstrong Siddeley Adder, by removing the reduction gearbox.

Another example is to be found at the Hertha Ayrton STEM Centre at Sheffield Hallam University, UK and a Mamba Mk 110 (serial number 654606 - ZP3043, believed originally flown in a Short Seamew) is on loan from the Rolls-Royce Heritage Trust to BAE Systems at Farnborough Airport, Hampshire.

Overseas, a Swiss-Mamba SM-1 is displayed at the Flieger-Flab-Museum Dübendorf in Swizterland and another Mamba can be seen at the Aviation Heritage Museum (Western Australia).