Flying Corvairs

John Martindale, Toormina, Australia, KR2S

First Year Flown on Corvair Power: 2003
Builder of Aircraft: John Martindale
Builder of Engine: William Wynne
Year Aircraft was Built: 2003
Type of Conversion: Wynne
Engine Year: 1966
Engine Displacement: 164cid
Propeller Diameter, Pitch and Make: 54" x 56" Wood
Target Cruise Speed: 160 knots
Target Cruise RPM: 3,800
Top Speed/RPM: 130 knots/4,000rpm
Target Static RPM: 2,850
John Martindale writes: "All is well. Aircraft was only getting about 130 knots on the 54" diameter by 56" pitch wooden prop before it reached max rpm of about 4000 rpm at approximately 65% power....obviously the prop was under sized/pitched. I'll let you know how the Warp Drive goes once I've got a new spinner made up. The new prop is 56" dia, 3 blade with pitch still to be set. I'm aiming for about 2850rpm static full throttle winding up to about 3800rpm max and 160 knots. KR2 VNE is 173 knots or 200mph."


William Wynne, The Corvair Authority
5000-18 HWY 17 #247
Orange Park, FL 32003

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