Hartzell Propeller and Raisbeck Engineering are collaborating on new structural composite swept blade props for the Beechcraft King Air 350 turboprop. Hartzell Propeller's exhibit at EAA AirVenture Oshkosh 2017 will feature a King Air 350 modified by Raisbeck Engineering with Hartzell's newest structural composite 106" diameter, lightweight five-blade propellers.

The aircraft will be at Hartzell's Booth 296-297 in the Main Aircraft Display Area during EAA AirVenture. Hartzell designed and manufactures the King Air propellers and Raisbeck performed the flight tests for the supplemental type certificate (STC), which it expects soon.

The King Air 350 propellers are an extension of the propeller blade technology advancements developed jointly by Hartzell and Raisbeck for the King Air 90, King Air B200 series, and King Air 300 series aircraft.