BIK,
Are we in disagreement at all ? .. you appear just to be restating my point in different words ?
Of course the load and power will be different in the two cases you describe .. that is the crux of the matter. A different prop provides a different load for the engine ... the problem then is the degree to which the prop torque loads are matched to the engine's capabilities to drive it.
Are you only concerned with the obvious fact that the engine and flight performance numbers are not going to be achieved or have I missed whatever point you are making here ?
Last edited by john_tullamarine; 10th April 2002 at 10:01.