Has anyone considered the IVO inflight adjustable with the electronic constant speed governor mounted on the Corvair?
http://www.ivoprop.com/inflightmediummodel.htm IVO inflight adjustable
http://www.ivoprop.com/constant.htm electronic constant speed governor
At the very minimum, IVO's baseline ground adjustable propeller seems like a good starting point, as it can be tailored for the airplanes performance. The 2 blade prop is only 11 pounds baseline ground adjustable, and $900. The electric adjustable 2 blade propeller jumps up to 24 pounds, and $2800. The governor is an additional $350. The electric adjustable and governor features are retrofitable without cowl modifications.
To me, the ground adjustable offers the most bang for the buck. It is lightweight, affordable, and easy to adjust blade pitch to tailor it for conditions, mission, or payload. It would also reduce the flight test trial and error of finding the correct propeller. One propeller purchase should be able to be dialed in for maximum performance.
The governed constant speed in-flight adjustable propeller is intriguing, but a little expensive and heavy for my taste and budget. But perhaps I might upgrade down the road. I would be very curious to hear other peoples thoughts on this. The Panther and the Cougar might react very positively to a constant speed prop.