"Stealth Pilot" wrote in message
news
I suppose the lesson here is that compensating factors for SOME
aircraft can negate the theoretical advantages for different settings.

"Compensating factors"? Such as, for example?

In your particular case, I can well believe that you found the same fuel
consumption at 114 knots as at 70 knots. However, that simply means that
you selected the wrong airspeed for best range. Your airplane is not immune
to the laws of physics.

Pete