-------------- Original message from Lynn Hanover <lehanover@gmail.com>: --------------

 

Don't worry about racing performance from the airplane installation. Nobody even dynos below 6,000 RPM. So here is a dyno sheet that is as low as I have ever seen. This engine has a very short intake that is tuned for 9,000 + RPM. But still respectable at even 6,500 RPM where you could use it in an airplane.

EGT probes are 3" out from the ports.

 

A properly assembled engine will tolerate an alarming amount of abuse and continue to perform normally.

Support systems that are common to any auto power installation are most likely to cause any problems.

 

On the balance question, the rotors are so heavy and move in such small orbits that the weight of oil missing from one or the other is not detectible to the pilot, as it is such a small percentage of the rotor

 weight. A badly out of balance rotary is smoother than a well balanced piston engine. In normal operation, braking retains more oil in the front rotor, and dumps more oil from the rear rotor, and nobody notices that. Same in a climb. Nobody has noticed any imbalance yet. I left piston engined race cars in 1980 based on the cost of exploded engines.

 

Lynn E. Hanover