The last version based on a single slave engine produced an estimated 5000HP from its 26 liters.
no idea re the revsOnly six complete examples were built when the research was terminated in December 1945. An additional eight vee twins were built. Serial numbers were even, Rolls-Royce practice being to have even numbers for clock-wise rotating engines when viewed from the front. Crecy number 10 achieved 2500 hp on 21 December 1944. Subsequently single cylinder tests achieved the equivalent of 5000 bhp for the complete engine.
but
The thrust produced by the two-stroke exhaust was estimated as being equivalent to an additional 30% increase in power at the propeller on top of the rated power of the engine, and was exceptionally loud.
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