Quote:
Originally Posted by Crumpp
Exactly why you cannot draw blanket conclusions from engine instructions! All installations are different, even with the exact same engine/propeller combination.
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Sorry forgot to mention that the Hurricane I Pilot's Notes are from 1939. I think it also give only limits for Merlin II an not III.
The following publications give 2850 RPM for Merlin II and III:
Notes for Pilot's on Merlin II and III - 1939
Merlin II and III Aero Engine, 2nd Edition - 1939
The following publications give 2850 RPM for Merlin II and 3000 RPM for Merlin III:
Notes for Pilot's on Merlin II, III and IV - 1940
Merlin II and III & V Aero Engine, 2nd Edition A.L. 4 - 1940
Spitfire Pilot's Notes - 1940