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Nov 08, 2023

Hartzell Propeller develops five

The propeller is quieter, more aerodynamic and lighter Under a recently approved

The propeller is quieter, more aerodynamic and lighter

Under a recently approved Supplemental Type Certificate (STC), Hartzell Propeller's five-blade composite propeller for Daher Kodiak 100 aircraft will be available as a factory option and for retrofit under Hartzell's Top Prop program.

The propeller can replace the four-blade aluminium Hartzell prop, which is now standard equipment on Kodiak 100s.

The aerodynamic design of the new propeller's carbon fiber blades allow revolutions per minute (RPM) to be reduced from 2,200 to 2,000 RPM, reducing noise while producing smoother operations with no loss in climb and cruise performance.

"Daher Kodiak is quite enthusiastic to offer this five-blade carbon fiber Hartzell propeller as an option on the Kodiak 100. It provides a significant upgrade in performance, noise signature, and ramp appeal, and is consistent with the latest composite propeller technology that Hartzell developed for the Kodiak 900," said Nicolas Chabbert, SVP of Daher's Aircraft Division.

The new Hartzell prop for the Kodiak 100 also provides a significant noise reduction of six dB(A) compared to the current standard prop. As part of the STC flight test plan, measured flyover noise was 77 dB(A), significantly lower than the EASA requirement of 85 dB(A), and less than the strict German requirement of 78 dB(A).

"This new lightweight propeller option gives Kodiak 100 pilots a five per cent shorter takeoff roll, with less vibration and even quieter flights," said Hartzell Propeller President JJ Frigge. "We have worked with Daher for years on their TBM platform, and we are very pleased to continue our partnership with them, enabling their STOL Kodiak to perform even better with a new, customized five-blade composite Hartzell prop."

The new 96-inch diameter prop saves 13 pounds of rotating weight by utilizing Hartzell's Raptor propeller system and carbon fiber blades. The prop includes anti-ice and maintains FIKI status. The five-blade propeller upgrade is available immediately as a factory option on new Kodiak 100s, and via the Hartzell Top Prop conversion program for the entire installed base of Kodiak 100 aircraft.