Raises hand![]()
NACA L-353 reports Spitfire CL max at cruise condition (2650 rpm, 3 3/4 lbs boost), gear up, flap up, ports open, as 1.68.
What does this do to the calculations?
Clmax figures with the engine running isn't valid, what we need and what we're using is free float figures. With the engine running CLmax is going to be raised quite significantly, more so by the a/c which provides the most thrust which would be the Ta-152.