The wing root of a simple aircraft, an American Aviation AA-1 Yankee, showing a wing root fairing
The wing root is that part of the wing, on a fixed-wing aircraft, that is closest to the fuselage. On simple designs where the wing joins the fuselage in a high wing, mid-wing or low wing configuration this is usually easy to identify. In parasol wing aircraft or multiple-boom aircraft the wing may not have a clear root area. In an aircraft, the fuselage is the main body section that holds crew and passengers or cargo. ... A parasol wing monoplane is an aircraft design in which the wing is not mounted directly to the fuselage, but rather, the fuselage is supported beneath it by a set of struts. ...
Wing roots are the part of the wing that usually bears the highest bending forces in flight and on landing. They often have fairings to reduce interference drag between the wing and the fuselage. In aerodynamics, interference drag is a component of parasitic drag which is caused by vortices. ...
The opposite end of a wing from the wing root is the wing tip.
The ailerons - the wing's control surfaces - remain effective at the highest angles of attack, and controllability of the aircraft is retained even in the event of airflow separating from the remainder of the wings' surface.
The wing panels of the Su-47 are constructed of nearly 90% composites.
The leading-edge root extensions blend smoothly to the wing panels, which are fitted with deflectable slats on the leading edge; flaps and ailerons on the trailing edge.
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