RE: Plans?
About the Webra pylon prop........if your airframe isn't sleek enough, the optimum prop will be different than what a pylon guy would recommend. Also, the pylon guy needs less pitch and a little more diameter to accelerate throughout the course. For flat out speed after a dive you want the least amount of diameter to pull the plane efficiently and the most pitch that the engine can handle in it's "happy" rpm range. At least the pylon guys can tell you what rpm these engines typically failed at. Typically you want to run a little bit below that but if you take the time to lighten the piston that goes a long ways toward raising the red line of any engine.