[2] Hartzell also produces spinners, governors, ice protection systems, and other propeller controls.

[2][3] Robert Hartzell grew up in the village of Oakwood, Ohio, just a block from Hawthorn Hill, where Orville Wright lived.

In 1917, Orville Wright suggested that Hartzell use his walnut trees to manufacture an aircraft propeller for his plane and others.

[7][8] After the war, Hartzell Propeller built its own airplanes, including the FC-1 (the first aircraft made entirely of plywood).

Hartzell stopped producing aircraft to avoid competing with its own propeller customers.

[16] In 2006, the FAA granted Hartzell the first certification for an Advanced Structural Composite (ASC II) propeller for general aviation.