"Should be possible to fly up to 30 minutes at + 9lbs and 2850 RPM. Actually it is not possible to fly even at +6 1/2 lbs at 2850 RPMs for 30 minutes."
Well sort of. 30 mins is a general limit. As to be able to actually do it is subject to Oil temp and Coolant limits staying within limits.
It seems the real issue in CLOD with the Merlins is keeping Oil temp below 95C. If you do this then generally there is not an issue. Go over 85C and the windscreen gets oily quickly.
The Source Document (AP 1565B) is RAF Pilots notes for the Spitfire II
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05-13-2012, 10:42 PM
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