Hartzell Propellers blended-airfoil propeller system for the Adam Aircraft A500 centreline-twin has passed the final hurdle for certification on the aircraft.
A recent FAA regulation requires all new pusher-propeller installations, such as the aft propeller on the A500, to ingest airframe ice shed during an inadvertent icing encounter without causing a hazardous condition.
Testing simulated a long section of wing-leading-edge ice striking the propeller blade at the most critical position, angle and velocity.
The first customer deliveries of the A500 are due towards the end of the year.
