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Another Armstrong Double Mamba Siddeley turboprop under test, this engine was two engines coupled together, this proved valuable when fitted to to Fairey Gannett as each engine ran either of the contra-rotating props so that one could be shut down extending range and loiter time.
Armstrong Siddeley Python turboprop engine about to do ground tests in 1949, it d fitted to Lancaster TW911 for air tests and would see service fitted to the Westland Wyvern with the Royal Navy and had the equivalent shaft horsepower of 4,110 ESHP.
Wing Commander
Guy Gibson VC DSO* DFC*
Squadron Leader
Jim Warwick DFC
lost on operations 72 years ago today
RIP