
1) Aerofoil 2) Aileron 3) Fin 4) Flaps 5) Rudder 6) Tailplane
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https://www.crosswordclues.com/clue/airfoil

1) Aerofoil 2) Control surface 3) Device 4) Plane wing 5) Surface 6) Surface designed for lifting
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https://www.crosswordclues.com/clue/airfoil

An airfoil (in American English) or aerofoil (in British English) is the shape of a wing or blade (of a propeller, rotor, or turbine) or sail as seen in cross-section. An airfoil-shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift. The component parall...
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http://en.wikipedia.org/wiki/Airfoil

The shape of any flying surface, but principally a wing, as seen in side-view ("cross-section"). Its characteristics are Center of Pressure (CP), DRAG (CD), LIFT (CL), Lift-Drag Ratio (L/D), and Moment (CM).
Found on
http://www.aerofiles.com/glossary.html

shaped surface, such as an airplane wing, tail, or propeller blade, that produces lift and drag when moved through the air. An airfoil produces a ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/a/34

Airfoil. The arrows (1) show the relative motion of the air through which the airfoil (2) is moving. Air travels past the upper edge faster than past the lower edge, so that there is a region of low pressure (6) above the airfoil and one of high pressure (7) below. This results in the airfoil experi...
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http://www.daviddarling.info/encyclopedia/A/airfoil.html

The cross-section of a wing.
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http://www.encyclo.co.uk/local/20471

The Airfoil is the shape of the cross section of the wing.
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http://www.encyclo.co.uk/visitor-contributions.php

A structure that creates lift when air flows around it (like a bird's wing.)
Found on
http://www.sialis.org/glossary.htm

[
n] - a device that provides reactive force when in motion relative to the surrounding air
Found on
http://www.webdictionary.co.uk/definition.php?query=airfoil

Any structure designed to help lift or control a flying object by using the air currents through which it moves. A typical airfoil, such as the wing of a bird or airplane, is rounded on top and curved inward below.
Found on
https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter

Wing-shaped with curve on top rather than beneath.
Found on
https://www.birds-of-north-america.net/Bird_Terminology.html
aerofoil noun a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
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https://www.encyclo.co.uk/local/20974

The cross section profile of the leeward side of a wind generator blade. Designed to give low drag and good lift. Also found on an airplane wing.
Found on
https://www.encyclo.co.uk/local/21333

The cross section profile of the leeward side of a wind generator blade. Designed to give low drag and good lift. Also found on an airplane wing.
Found on
https://www.encyclo.co.uk/local/21463

An aerodynamic device designed to improve traction by increasing the downforce on the car. The use of airfoils (also called wings) increases the cornering capability and improves stability at speed, but often at the expense of additional aerodynamic drag.
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https://www.encyclo.co.uk/local/22334

any surface, as a wing, aileron, or stabilizer, designed to aid in lifting or controlling an aircraft by making use of the air currents through which it moves.
Found on
https://www.infoplease.com/dictionary/airfoil
No exact match found.