Anything broad and limber that hangs loose, or that is attached by one side or end and is easily moved; as, the flap of a garment.
A hinged leaf, as of a table or shutter.
The motion of anything broad and loose, or a stroke or sound made with it; as, the flap of a sail or of a wing.
a movable part of an airplane wing, used to increase lift or drag, especially when taking off or landing. used often in the plural.
To beat with a flap; to strike.
To move, as something broad and flaplike; as, to flap the wings; to let fall, as the brim of a hat.
To move as do wings, or as something broad or loose; to fly with wings beating the air.
To fall and hang like a flap, as the brim of a hat, or other broad thing.
Movable surface forming part of leading or trailing edge of an aerofoil and able to hing downwards or move rearwards on tracks to alter the wing's camber, cross-section, and area to enhance low-speed lift and drag and thereby reduce approach and landing speeds.
Top layer of a laminate material, which is lifted to insert the photograph prior to laminating.
movable section at the back of a wing extended backward to create more lift at takeoff and before landing
Control surface located on the inner portion of a wing that extends outward and deflects downward to increase the camber and lift of the wing.
any broad thin and limber covering attached at one edge; hangs loose or projects freely; "he wrote on the flap of the envelope"
a movable piece of tissue partly connected to the body
a movable airfoil that is part of an aircraft wing; used to increase lift or drag
move with a thrashing motion; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky"
move with a flapping motion; "The bird's wings were flapping"
a partly attached piece of skin which
A fake, movable insert that lies against the top or bottom of a box. It is used to hide a card. (Book 4)
Surface mounted on the trailing edge of a wing to increase lift during take-off/landing
movable surface that increases the lift or drag of an aircraft
A surface hinged to the trailing edge of the wings that can be lowered partially, to increase lift, or fully, to increase drag.
The control surface on a wing closest to the fuselage. Moves up or down, to increase lift or drag.
Typically made with duct tape, a flap adds drag to a boomerang, and is a quick and easy way to adapt to stronger winds than a given boomerang would usually cope with, or to slow the spin of a boomerang. Typically a flap is 10-20 mm in width, and 1-15 mm in height. Placing a flap nearer the end of a wing will have a greater effect than placing it nearer the elbow. Somewhat contradictorily, placing a flap close to the trailing edge can, like a spoiler on a car, cause downforce at that point, thus increasing the angle of attack and therefore resulting in a boomerang that flies higher. Other placements commonly adopted are trailing in the plane of the wing, or at the centre of multi-blade boomerangs to stabilise their descent.
Flaps are hinged surfaces on the trailing or leading edge of the wings of a fixed-wing aircraft which, when deployed, increase the lift and drag of a wing.