Maintenance and Modifications
Five-blade Composite Propeller Certified on Piper M500/Meridian
The new propeller's swept-airfoil blades lower propeller assembly weight by 15 pounds compared with the four-blade aluminum design.
The five-blade composite Hartzell propeller is an option for the Piper M500 and retrofittable to the Meridian.
The five-blade composite Hartzell propeller is an option for the Piper M500 and retrofittable to the Meridian.

Piper Meridian owners and buyers of the new Piper M500 have a new propeller option, a Hartzell five-blade composite propeller for which Hartzell has just received a supplemental type certificate. In addition to providing reduced noise and a better climb rate, the propeller’s new blades are certified for unlimited life. The swept-airfoil blades are designed with a stainless steel shank, nickel cobalt leading edge and mesh erosion screen for FOD protection, according to Hartzell. The entire propeller assembly is 15 pounds lighter than the current aluminum four-blade propeller.