The first aircraft flying powered by Twin Turbines with Co-axial Propellers. (Armstrong Siddely Double Mamba)

The Fairey 17 Twin Engined - Anti Submarine - Carrier Operated

Embodying with the Armstrong Siddely Double Mamba the Fairey scheme of twin engined reliability originally introduced in the Fairey P/24 engine, first installed in a Fairey "Battle" light bomber in 1939

THE FAIREY AVIATION COMPANY LTD - HAYES MIDDLESEX