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220px-Wing.two.arp.600pix INTERVIEW QUESTION: Explain the aerodynamic characteristics of different wings -

Research and compare the different types of wing and their aerodynamic effects. Consider some of the following features of wings.

Aircraft wings may feature some of the following:

  • A rounded leading edge cross-section
  • A sharp trailing edge cross-section
  • Leading-edge devices such as slatsslots, or extensions
  • Trailing-edge devices such as flaps or flaperons (combination of flaps and ailerons)
  • Ailerons (usually near the wingtips) to roll the aircraft clockwise or counterclockwise about its long axis
  • Spoilers on the upper surface to disrupt the lift and to provide additional traction to an aircraft that has just landed but is still moving.
  • Vortex generators to help prevent flow separation in transonic flow
  • Wing fences to keep flow attached to the wing by stopping boundary layer separation from spreading
  • Winglets to keep wingtip vortices from increasing drag and decreasing lift
  • Dihedral, or a positive wing angle to the horizontal. This gives inherent stability in the roll direction. Anhedral, or a negative wing angle to the horizontal, has a destabilizing effect
  • Folding wings allow more aircraft storage in the confined space of the hangar deck of an aircraft carrier
  • Variable-sweep wing or "swing wings" that allow outstretched wings during low-speed flight (i.e., take-off and landing) and swept back wings for high-speed flight (including supersonic flight), such as in the F-111 Aardvark, the F-14 Tomcat, the Panavia Tornado, the MiG-23, the MiG-27, the Tu-160 and the B-1B Lancer warplanes

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matf INTERVIEW QUESTION: Explain the aerodynamic characteristics of different wings -


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