Hartzell Propeller Inc. is the global leader in advanced aircraft propeller design and manufacturing technology. Because of our concentration and commitment to propeller driven aviation, we are the supplier of choice for nearly every major aircraft manufacturer. The company traces its history to 1914 when a relationship between Orville Wright and Robert Hartzell led to the manufacture of the first Hartzell airplane propeller in 1917. The company’s founding principle of “Built on Honor” has been central to our corporate values from the very beginning.