"There are a large number of woods used in the construction of airplane propellers and the selection of one suitable to meet the conditions in hand is not always an easy problem," writes Frank W.

Hartzell’s 5-blade composite propeller reduces aircraft weight by around 20 pounds total by using carbon fiber construction rather than a 4-blade aluminum propeller.

Dutch engineer Anthony Fokker custom-built a single-seat monoplane, featuring a fully functional synchronization gear that ...