- The curved portion of a propeller blade. It corresponds to the upper portion of a wing.
Aviation dictionary. 2014.
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blade back — noun : the surface of a propeller or rotor blade that corresponds to the upper surface of a lifting airfoil … Useful english dictionary
back — i. The curved surface of a propeller blade. It corresponds to the upper surface of the airplane’s wing. Also called a blade back. ii. The back of the power curve, where any decrease in speed results in a disproportional increase in drag. A stage… … Aviation dictionary
blade face — The flat surface of a propeller blade corresponding to the underside of an airfoil. This is the portion of the blade that strikes the air. The other side of the blade is called blade back … Aviation dictionary
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