Five-Blade Swept Propeller
Raisbeck Engineering Receives STC Approval for Composite Five-Blade Swept Propeller.
September 14, 2017 – Seattle, Wash. – Raisbeck Engineering, a leading
provider of performance enhancement systems for business and
commercial aircraft, is proud to announce the company has received
Supplemental Type Certificate (STC) approval from the FAA for its new
Composite five-blade Swept Propeller for the Beechcraft King Air 350.
The composite five-blade swept propeller, designed to improve
King Air comfort, performance and efficiency, was developed in
collaboration with Hartzell Propeller. A 106-inches in diameter,
Raisbeck’s composite five-blade swept propeller reduces weight and
contributes to improved short field and climb performance, while
providing strength and durability expected from modern composites. The new composite propellers have an extended
3,000-hour, three-year warranty and unlimited blade life.
“This is a significant milestone in our journey to market entry for a composite five-blade swept propeller,” said company
CEO and Chief Financial Officer, Tony Armstrong. “We couldn’t be happier and our new propeller will further enhance the
King Air 350 performance. We believe King Air operators will truly enjoy flying with these new propellers.”
The company received FAA Parts Manufacturing Approval (PMA) following STC approval and propellers are available for
Raisbeck’s aerodynamic blade design which optimizes airfoil efficiency combined with carbon fiber structural design,
maximizes thrust therefore increasing performance while reducing noise for the aircraft. The composite five-blade swept
propeller provides a total weight savings of 47 pounds compared to the current OEM propeller for the King Air 350.
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