Thanks to an anonymous donor the prize is up to $1500 for any rotary powered airplane to average over 220 MPH in the 500 mile OSH race.

Assuming you will need 220 HP and 120  pounds of fuel per hour at a BSFC of.55 your tanks must be large enough to hold 275 pounds of fuel or about  45 gallons. I say this to give you plenty of time to plan ahead. The tank must be built in and cannot be a ferry type temporary tank in the back seat. I think this is the year from Dayton to OSH. From North Dakota to OSH is easier because of the prevailing winds.

This P-port powered Velocity RG went 214 MPH  in the 2007 race.

Paul Lamar