Maintenance and Modifications
Hartzell Five-blade Prop OK'd with Finnoff PC-12 Upgrade
Its swept blades increase aircraft performance and reduce flyover and cabin noise, Hartzell said.
Hartzell's five-blade composite swept tip propellers can now be added alongside the Finnoff Aviation 1,200-shp engine upgrade for legacy Pilatus PC-12s. Its swept blades increase aircraft performance and reduce flyover and cabin noise, Hartzell said.
Hartzell's five-blade composite swept tip propellers can now be added alongside the Finnoff Aviation 1,200-shp engine upgrade for legacy Pilatus PC-12s. Its swept blades increase aircraft performance and reduce flyover and cabin noise, Hartzell said.

Hartzell Propeller has received an amended U.S. FAA STC for installation of its five-blade composite swept-tip propeller with the Finnoff Aviation 1,200-shp Pratt & Whitney Canada PT6A-67P engine upgrade for pre-NG Pilatus PC-12s. The five-blade propeller, which is now standard on factory-new PC-12NGs, replaces the four-blade Hartzell aluminum propeller that is standard equipment on legacy models of the Swiss-built turboprop single.