RE: MOKI RADIAL Care and Maintenence
My humble suggestion is you reduce the inflight RPM below 4500 to stay away from the 5000 RPM maximum, which is the point where you will start throwing pushrods. You stated it perfectly, you are outside of the engine's torque curve at the RPM your engine is running. We are running a 32-inch Solo 3-blade propellor with the pitch adjusted for 3500 RPM on the ground and the most RPM we have seen the engine unload to in the air is 4100. The maximum airspeed we have recorded from our onboard telemetry is 110 mph/176 kph. The maximum recommended speed for the CARF Corsair we are flying is 125 mph/200 kph so we strive to stay below that speed. To us the CARF Corsair/Moki 250 cruising by at 85-90 mph looks and sounds very scale, which is our modeling objective.
Congratulations on your new model/engine, I'm positive you will have many hours of enjoyment from both.
Regards,