Hartzell Propeller, a Signia Aerospace company and global innovator in advanced aircraft propulsion technologies, has received a Supplemental Type Certificate (STC) for its carbon fiber Pathfinder 3-blade propeller, specifically engineered for integration with the Aviat Husky platform. This development marks a significant step in performance modernization for legacy and new-production Husky aircraft. 

Available as part of Hartzell’s Top Prop conversion program, the 80-inch diameter Pathfinder propeller offers a certified replacement for existing 2-blade composite, aluminum, or wooden configurations on Aviat models A-1, A-1A, A-1B, A-1C-180, and A-1C-200. It is approved for aircraft powered by Lycoming O-360-C1G (180 HP) and IO-360-A1D6 (200 HP) engines, providing a retrofit pathway that aligns with modern performance, noise compliance, and lifecycle cost expectations.