Guess I did, Bill.  I know the governor has the pump to do this, its just I've not found a governor suitable for a rotary engine.

OK Ed,

I kind of figured you understood about the pump in the governor. As to the speed, I figured that the governor would require a reduction identical (or really close) to the PSRU. This could be a toothed belt/pulley system. With the reduction any standard governor would work. Mistral uses a helical right angle drive to a pad on the side of the prop shaft. I've also seen a v-belt driving off a pulley at the front similar to the O-360 Lyc alternator drive. Some movement is OK it needn't be timed. The reason I'm interested is the RV-10 will probably benefit from a CS.

 As you mentioned the RV-4 hardly needs a CS. Just more complication. I am supprised Tracy didn't think about the other planes that would or could be using the drive when going into production though.

Bill Jepson