Here's some numbers from a recent test flight, I'd like to find more speed in the 6.5 to 12.5 altitude range. Considerations are re-pitch or new prop or burn gas.
RV-9A, O-320 160hp, 405hrs
Prop Sensenich metal 70/79 (actually 69.5 after repair from nose collapse/flip at 13 hrs)
Power set to 75% after initial climb for CHT cooling, leaned to peak, AS in knots, static +/- 2200
This engine runs smoothly LOP; FF/RPM/speed/CHT's drop off quickly LOP.
ALT DALT RPM MAP %pwr FF TAS
Rotation 750 2140 2275 29.4 93 12.5 72
Level@ 1800 3100 2380 25.1 78 12 138
Level@ 6500 7800 2470 23.4 76 8.4 144
Level@ 8500 9815 2510 22.5 70 7.5 147
Level@ 10500 11840 2480 20.9 67 7.1 148
Thanks,
Carl
RV-9A, O-320 160hp, 405hrs
Prop Sensenich metal 70/79 (actually 69.5 after repair from nose collapse/flip at 13 hrs)
Power set to 75% after initial climb for CHT cooling, leaned to peak, AS in knots, static +/- 2200
This engine runs smoothly LOP; FF/RPM/speed/CHT's drop off quickly LOP.
ALT DALT RPM MAP %pwr FF TAS
Rotation 750 2140 2275 29.4 93 12.5 72
Level@ 1800 3100 2380 25.1 78 12 138
Level@ 6500 7800 2470 23.4 76 8.4 144
Level@ 8500 9815 2510 22.5 70 7.5 147
Level@ 10500 11840 2480 20.9 67 7.1 148
Thanks,
Carl
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