Steve Sampson
Well Known Member
Could it be that max speed occurs with a c/s prop at a little less than max RPM in a practical world?
I am prompted to ask this by data off my AFS. I run a carbd O-320 with a 2-blade c/s MT prop. Clearly max power is everything forward, 2700rpm, but I do wonder if at 2650 it goes just a little faster. At first I discarded this because the Lyco curve shows the power dropping, but then I got to wonder if the props efficiency might rise more than enough to compensate. Also, there would be a slight MP rise with the slower pumping.
Anyone know this stuff?
I am prompted to ask this by data off my AFS. I run a carbd O-320 with a 2-blade c/s MT prop. Clearly max power is everything forward, 2700rpm, but I do wonder if at 2650 it goes just a little faster. At first I discarded this because the Lyco curve shows the power dropping, but then I got to wonder if the props efficiency might rise more than enough to compensate. Also, there would be a slight MP rise with the slower pumping.
Anyone know this stuff?