https://www.flyingmag.com/hartzell-stc-three-blade-bonanza-prop/
Hartzell Earns STC for Three-Blade Bonanza Propeller
Mar 25, 2025 - Hartzell Propellers said in a news release that its new Navigator three-blade, advanced composite scimitar propeller, has been approved for the Beechcraft
for threeblade bonanzahartzellearnsstc