A Supplemental Type Certificate (STC) has been approved to replace McCauley propellers on Mooney M20M/TLS/Bravo aircraft with Hartzell Propeller‘s 75-inch diameter three-bladed aluminum props.
Airplanes covered by the STC are powered by TIO-540-AF1A and TIO-540-AF1B Turbocharged Lycoming Sabre engines.
“Installing Hartzell’s Scimitar-style prop covered by this STC delivers 8% to 10% improvement in climb performance, a 2-3 knot increase in cruise, and looks terrific on the ramp coupled with Mooney’s signature tail,” said Hartzell President JJ Frigge. “And it has the Hartzell Top Prop 2,400 hour, six-year time between overhaul, and warranty until first overhaul.”
The Hartzell Propeller Top Prop kit is available for $15,839 and includes a propeller, all-composite spinner assembly and STC documentation.
A TKS ice protection kit is available at an additional charge, while electric de-ice approval is pending, Hartzell officials added.