Hartzell Propeller has received a supplemental type certificate (STC) from the FAA to replace the standard wood/composite propeller on Diamond DA40 NG aircraft with the new, three-bladed, lightweight, Polaris composite propellers. Operators of the diesel/jet-fuel-powered iteration of Diamond’s popular, four-place, single-engine utility airplane shall henceforth enjoy a new, higher-performance option when it comes to a propeller/engine combinations.
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