STC Approved for Hartzell Propeller Three-Blade Mooney Bravo Prop

Airplanes covered by the STC are powered by TIO-540-AF1A and TIO-540-AF1B turbocharged Lycoming Sabre engines.

Wednesday, June 22, 2022 at 05:34 PM ET

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According to Hartzell, about 10,000 Mooney airplanes have been equipped with Hartzell props. [Courtesy: Hartzell Propeller]

Key Takeaways:

Hartzell Propeller received STC approval for a new 75-inch, three-bladed aluminum prop designed for Mooney M20M/TLS Bravo aircraft.
This new scimitar-style propeller significantly improves climb performance by 8-10% and increases cruise speed by 2-3 knots compared to the original McCauley propeller.
The STC covers M20M/TLS Bravo models powered by TIO-540-AF1A and TIO-540-AF1B turbocharged Lycoming Sabre engines, addressing a long-standing request for enhanced performance.
The Hartzell Top Prop kit, which includes the propeller, an all-composite spinner assembly, and STC documentation, is available for $15,839.

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Better climb performance and a higher cruise speed are two things that owners of the Mooney M20M/TLS Bravo can look forward to when they replace their McCauley propeller with Hartzell Propeller‘s 75-inch-diameter, three-bladed aluminum prop.

The supplemental type certificate (STC) for the Hartzell prop was approved this week. Airplanes covered by the STC are powered by TIO-540-AF1A and TIO-540-AF1B turbocharged Lycoming Sabre engines.