landing flap


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landing flap

[′land·iŋ ‚flap]
(aerospace engineering)
A movable airfoil-shaped structure located aft of the rear beam or spar of the wing; extends about two-thirds of the span of the wing and functions to substantially increase the lift, permitting lower takeoff and landing speeds.
References in periodicals archive ?
Others may have a different preference, but shouldn't this system be configured with landing flaps?
Equipped with laser measurement technology and other advanced metrology systems, the researchers achieved hitherto unknown precision in detecting the flow conditions around an Airbus A320 with extended landing flaps under real in-flight conditions.
According to the South Wales Aviation Group, a Thomson Boeing 757 from Lanzarote suffered problems with the landing flaps on its wings at around 7pm yesterday evening.
Flap support structures link the landing flaps to the wing trailing-edge structure and allow the deployment of the flaps during the take-off and landing phases.
The pilot subsequently reported during a visual approach, he "set up for a normal approach" and "dropped gear" and "one notch of flaps." A short time later he selected landing flaps. He believed that he was "a little high" on the approach so he "dipped down." As he passed the runway threshold his speed was "a little high," but he thought it was manageable.
At 100 feet, and still well short of the runway end and slowed to nearly 1.3 [V.sub.so], with landing flaps selected, the airplane enters one of those low-lying clouds that it would have gone over had the pilot stayed on the glideslope.

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