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symmetrical airfoil
Definição1
An airfoil having the same shape on the top and bottom.
Fonte1
SCHAFER, Joe. Helicopter maintenance. Englewood: Jeppesen Sanderson, Inc., c2007. viii, 343 p.
Definição2
An airfoil that has the same shape on both sides of its center line. A symmetrical airfoil has a very small change in the location of its center of pressure as its angle of attack changes. For this reason, symmetrical airfoils are often used for helicopter rotors.
Fonte2
CRANE, Dale (ed.). Dictionary of aeronautical terms. 4th ed. Newcastle: ASA, 2006.
Subárea1
Aerodynamics
Related Term
aerofoil