Partnership Produces A Better Performing King Air 350s 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-inch diameter lightweight five-blade propellers.
Source: aero newsHartzell Propeller And Raisbeck Engineering Team Up