Vance Jaqua wrote:

All those lift and drag coefficients are in my prop
program, and it does the messy trig of getting them
sorted out between thrust and torque. The lift drag
ratios have a fairly weak impact on prop performance,
even dropping airfoil drag to zero does not make a
very large increase in perfomance, strange as that may
seem. The bigest hit on prop performance is disc
loading and aircraft speed. I will bring some charts
to Santa Paula tommorrow that show how the laws of
physics limit prop performance, and pumping losses
make up the rest - I will see you if you are well
enough to be there - hey get well!! - Vance

OK Vance but I don't think I will make it. Still too sick.
Unless I spend most of the day in bed I don't think I will be
worth anything next week. We did make some progress getting the 
engine ready to put in the 182 yesterday however.

Paul Lamar
 
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