Armstrong Siddeley Double Mamba

Double Mamba
Preserved Double Mamba at the Imperial War Museum Duxford
Type Turboprop
Manufacturer Armstrong Siddeley
First run 29 September 1949 (First flight)
Major applications Fairey Gannet
Developed from Armstrong Siddeley Mamba

The Armstrong Siddeley Double Mamba is a turboprop engine design developed in the late 1940s of around 3,000–4,000 hp (2,200–3,000 kW). It was used mostly on the Fairey Gannet anti-submarine aircraft developed for the Fleet Air Arm of the Royal Navy.