Swept wing
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The Swept Wing
The whole idea of sweeping an aircraft's wing is to delay the drag rise caused by the formation of shock waves.
Swept Wing
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SWEPT WING - Wing of which the angle between the wing leading-edge and the centre line of the rear fuselage is less than 90 degrees.
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9: Swept Wing Airplane in a Slip
A fourth effect is shown in figure 9.10. In practically all aircraft, the rudder sticks up above the roll axis. When the aircraft is in a slip, the rudder produces a substantial force.
German research during World War II had shown that swept wings would perform better at transonic speeds, and Soviet aircraft designers were quick to take advantage of this information.
In most modern aircraft, except high-speed swept wing designs, these free directional oscillations usually die out automatically in very few cycles unless the air continues to be gusty or turbulent.
Most jet aircraft have swept wings, meaning the wings are angled back toward the rear of the plane. Swept wings produce less lift than perpendicular wings, but they are more efficient at high speeds because they create less drag.
Du Temple flew a model aircraft of his own design-powered by a spring-driven clockwork mechanism and with unusual forward-swept wings (instead of wings that stuck straight out or were swept back).
On swept wing airplanes, they are located about two-thirds of the way out towards the wing tip and prevent the drifting of air toward the tip of the wing at high angles of attack. On straight wing airplanes, they control the airflow in the flap area.
 See also: Aircraft, Speed, Wing, Plane, Flight
  
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