Raisbeck Engineering has received an STC from the FAA for Hartzell’s new composite five-blade swept propeller introduced at NBAA-BACE 2019 for Beechcraft King Air 200 series twin-turboprops, allowing installations and first deliveries to begin next month, the Seattle-based aircraft modification company announced this week. “We’re very excited about this latest performance improvement certification for the King Air 200,” Raisbeck president Lynn Thomas said. “Our new composite five-blade propeller will enable King Air owners to take advantage of a broader offering and more opportunity to upgrade the performance of their aircraft.”
According to Hartzell, the structural carbon fiber composite propeller with nickel cobalt leading edges provides for a larger, 96-inch diameter prop with less blade tip noise that weighs 48 pounds less than OEM-installed propellers. Raisbeck added the propeller delivers more than 15 percent greater takeoff acceleration, more than 20 percent improved climb rate, and 30 percent less noise in the cabin.
Raisbeck will now seek STC approvals from the European Union Aviation Safety Agency, Transport Canada, and Brazil's ANAC.