As announced in the last issue of King Air magazine, Raisbeck Engineering and Hartzell Propeller collaborated on a new composite five-blade swept propeller for the Beechcraft King Air 350, and it has recently received STC approval from the FAA.
According to the companies, the composite five-blade swept propeller is designed to improve King Air comfort, performance and efficiency. At 106 inches in diameter, the swept propeller reduces weight and contributes to improved short field and climb performance, while providing strength and durability expected from modern composites. The blade design which optimizes airfoil efficiency combined with carbon fiber structural design also maximizes thrust therefore increasing performance while reducing noise for the aircraft. The composite five-blade swept propellers provide a total weight savings of 47 pounds compared to the current OEM propeller for the King Air 350.
The new composite propellers have an extended 3,000-hour, three-year warranty and unlimited blade life.
The company received FAA Parts Manufacturing Approval (PMA) following STC approval and propellers are available for immediate delivery.