On Tue, 18 Nov 2008 21:20:43 -0800, John Kimmel
wrote:

wrote:


Only problem I see is you still have it set up with the thrust above
the CG. The center line of the prop is significantly lower than the
CG. Do I just use negative numbers? Or should the spreadsheet still be
corrected?

If you downloaded the corrected version, the numbers you see when you open the spreadsheet a
60 -13 -1.5 -14 -2.408899631

CG is 60" aft of propeller center. Propeller center is 13" below CG. Thrust angle is 1.5 degrees down.
If you move propeller center down 1" to 14" below CG, the new thrust angle will be 2.4 down.


That's what I suspected - and it seams to work. The resulting
reduction in the angle is counterintuitive however.