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."