Raisbeck gains STC for new composite propeller for King Air 350

Beech King Air 350

Raisbeck Engineering has received a Supplemental Type Certificate (STC) from the FAA for Hartzell Propeller’s newest structural composite swept blade props designed specifically for Beechcraft King Air 350 turboprops.

Hartzell Propeller will showcase the new propeller at the NBAA in Las Vegas next month. The propeller will also be on display at Raisbeck’s exhibition stand at NBAA.

Hartzell designed and manufactures the King Air 350 propellers. Raisbeck performed the flight tests for the STC and will install in the aftermarket across its dealer network. The new King Air 350 propellers are an extension of propeller blade technology advancements developed by Hartzell for the King Air 90, King Air B200 series and King Air 300 series aircraft over the past three decades.

JJ Frigge, EVP of Hartzell Propeller, said: “The new composite propellers provide strong performance gains for the aircraft, including take-off distance, time to climb and cruise speed. Importantly, the props also come with an enhanced, three-year, 3,000-hour warranty.”

“The new five-blade swept propellers replace the standard Hartzell four-blade aluminum propellers on the King Air 350 fleet,” said Raisbeck Engineering vice president of sales and marketing Lynn Thomas. “This provides nearly 50 lbs of weight savings for the aircraft, improved single-engine climb performance, unlimited life blades, increased takeoff acceleration, and is quieter.”