TYPICAL PROPELLER BLADE ELEMENTS Blade shank Blade butt Center of hub CROSS-SECTION OF A Leading PROPELLER BLADE edge Cambered side Chord line Blade face THESE SMALL diagrams (above) clearly show the close relationship between the propeller and wings. The top diagram shows the propeller from the front and side, and cross-sections going up and down the length of a blade. The lower diagram shows how the propeller acts like a wing, considering the cross-section is so similar it could easily be mistaken for one. PLUS Take the Air Safety Institute course. 26 / FLIGHTTRAINING.AOPA.ORGhttp://FLIGHTTRAINING.AOPA.ORG