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The term "winglet" was previously used to describe an additional lifting surface on an aircraft, like a short section between wheels on fixed undercarriage. Richard Whitcomb's research in the 1970s at NASA first used winglet with its modern meaning referring to near-vertical extension of the wing tips . [ 10 ]
The winglet and red navigation light on the wing tip of a South African Airways Boeing 747-400 Many aircraft types, such as the Lockheed Super Constellation shown here, have fuel tanks mounted on the wing tips, commonly called tip tanks The wing tip of a Quad City Challenger II, formed with an aluminum bow The wing tip of a Grumman American AA-1, showing its Hoerner style design A Piper PA-28 ...
Dihedral effect [1] of an aircraft is a rolling moment resulting from the vehicle having a non-zero angle of sideslip. Increasing the dihedral angle of an aircraft increases the dihedral effect on it. However, many other aircraft parameters also have a strong influence on dihedral effect.
Such wings however have disadvantages with respect to structural constraints and maneuverability, as evidenced by combat and aerobatic planes which usually feature short, stubby wings despite the efficiency losses. Another method of reducing induced drag is the use of winglets, as seen on most modern airliners.
Winglets have the opposite effect to washout. Winglets allow a greater proportion of lift to be generated near the wing tips. (This can be described as aerodynamic wash-in.) Winglets also promote a greater bending moment at the wing root, possibly necessitating a heavier wing structure
A winglet is a short fin that projects upward from the wing of an aircraft. They are used to reduce aerodynamic drag. CNBC has requested comment from a spokesman from Trump’s presidential ...
At the wing tip the airflow can end up being almost all spanwise, as opposed to front-to-back over the wing, meaning that the effective airspeed drops well below the stall. Because the geometry of swept wings typically places the wingtips of an aircraft aft of its center of gravity , lift generated at the wingtips tends to create a nose-down ...
These planes are popular with airlines because they can connect profitable cities that previously required a high-capacity wide-body plane like the Boeing 767 or Airbus A330.