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  2. Alula - Wikipedia

    en.wikipedia.org/wiki/Alula

    The word is Latin and means "winglet"; it is the diminutive of ala, meaning "wing". The alula is the freely moving first digit, a bird's "thumb", and typically bears three to five small flight feathers, with the exact number depending on the species. There also are minor covert feathers overlying the flight feathers.

  3. Lockheed YO-3 Quiet Star - Wikipedia

    en.wikipedia.org/wiki/Lockheed_YO-3_Quiet_Star

    The observer is located at the front of the cockpit. The YO-3A is an all-metal low-wing monoplane of semi-monocoque construction. The control surfaces of the YO-3A including the ailerons and rudder are fabric-covered. The engine cover, canopy, engine exhaust shroud, wing-root fairings, and wheel-well fairings were constructed of fiberglass. The ...

  4. Flight control surfaces - Wikipedia

    en.wikipedia.org/wiki/Flight_control_surfaces

    The main control surfaces of a fixed-wing aircraft are attached to the airframe on hinges or tracks so they may move and thus deflect the air stream passing over them. This redirection of the air stream generates an unbalanced force to rotate the plane about the associated axis. Flight control surfaces of Boeing 727

  5. Aircraft flight control system - Wikipedia

    en.wikipedia.org/wiki/Aircraft_flight_control_system

    Cockpit controls and instrument panel of a Cessna 182D Skylane. Generally, the primary cockpit flight controls are arranged as follows: [2] A control yoke (also known as a control column), centre stick or side-stick (the latter two also colloquially known as a control or joystick), governs the aircraft's roll and pitch by moving the ailerons (or activating wing warping on some very early ...

  6. Environmental control system - Wikipedia

    en.wikipedia.org/wiki/Environmental_control_system

    Control panel for a Boeing 737-800 ECS. In aeronautics, an environmental control system (ECS) of an aircraft is an essential component which provides air supply, thermal control and cabin pressurization for the crew and passengers. Additional functions include the cooling of avionics, smoke detection, and fire suppression.

  7. Feather development - Wikipedia

    en.wikipedia.org/wiki/Feather_development

    The tail feathers are used to control flight acting as rudder and brake, only some of these feathers are as firmly attached as the bird's primaries. Contour feathers are arranged on the body of the bird in the manner of roof tiles. The tips of these feathers are waterproof and help protect the bird from the elements, while the inner parts of ...

  8. Strake (aeronautics) - Wikipedia

    en.wikipedia.org/wiki/Strake_(aeronautics)

    Nose, wing and ventral strakes Vortices over the wing strakes of an F/A-18E Super Hornet. In aviation, a strake is an aerodynamic surface generally mounted on the fuselage of an aircraft to improve the flight characteristics either by controlling the airflow (acting as large vortex generators) or by a simple stabilising effect.

  9. Empennage - Wikipedia

    en.wikipedia.org/wiki/Empennage

    The empennage (/ ˌ ɑː m p ɪ ˈ n ɑː ʒ / or / ˈ ɛ m p ɪ n ɪ dʒ /), also known as the tail or tail assembly, is a structure at the rear of an aircraft that provides stability during flight, in a way similar to the feathers on an arrow. [1] [2] [3] The term derives from the French language verb empenner which means "to feather an arrow ...

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