A flap is a high-lift device used to reduce the stalling speed of an aircraft wing at a given weight. Flaps are usually mounted on the wing trailing edges of a fixed-wing aircraft. Flaps are used to reduce the take-off distance and the landing distance.
A: Flaps are located on the trailing edge of each wing, usually between the fuselage and the ailerons, and extend downward (and often outward) from the wing when put into use.
Description. Flaps are a high lift device consisting of a hinged panel or panels mounted on the trailing edge of the wing. When extended, they increase the camber and, in most cases, the chord and surface area of the wing resulting in an increase of both lift and drag and a reduction of the stall speed.
The flap is placed on the outside edge of an airplane's wing. You can find it between the fuselage and ailerons. Large jetliners have as many as three parts to their flaps; these are extended in sections on takeoff and landing, as needed.
Flap extension during landings provides several advantages by: Producing greater lift and permitting lower landing speed. Producing greater drag, permitting a steep descent angle without airspeed increase.
In light airplanes, no-flap landings aren't exceptionally difficult or dangerous. No-flap landings may require up to 50% more runway distance for stopping. With flaps retracted and power reduced, the airplane will be slightly less stable around the pitch and roll axes.
Landing with the flaps fully extended allows for a steeper approach, which helps in clearing obstacles. It also provides the lowest landing speed, which is generally safer. Retracting the flaps immediately upon touchdown provides for more aggressive braking, which when utilized, reduces the landing distance.
The next time you fly in an airliner, watch the wings during takeoff and landing. On takeoff, we want high lift and low drag, so the flaps will be set downward at a moderate setting. During landing we want high lift and high drag, so the flaps and slats will be fully deployed.
Finally, we come to the ailerons, horizontal flaps located near the end of an airplane's wings. These flaps allow one wing to generate more lift than the other, resulting in a rolling motion that allows the plane to bank left or right. Ailerons usually work in opposition.
Triangular flap is the most common approach used by many surgeons.
The flap operating control may be an electrical or hydraulic control on the instrument panel, or it may be a lever located on the floor to the right of the pilot's seat.
verb (used without object),flapped, flap·ping. to swing or sway back and forth loosely, especially with noise: A loose shutter flapped outside the window. to move up and down, as wings; flap the wings, or make similar movements.
The definition of a flap is a piece of tissue with a defined blood supply, which differentiates it from a graft, where a piece of tissue is freed from any defined blood supply and re-planted to be absorbed into the native tissue surrounding it.
A flap is a transfer of tissue with its intrinsic blood supply from one part of the body to another. The blood supply to a flap is persistent and does not depend on the recipient bed.
Example Sentences
Verb The breeze flapped the sails. The flag flapped in the breeze. The bird's wings were flapping.
Lowering flaps on your aircraft increases your aircraft's lift, as well as induced drag.
Humans are not physically designed to fly. We cannot create enough lift to overcome the force of gravity (or our weight).
Secondary flight controls are intended to improve the aircraft performance characteristics or to relieve excessive control loading, and consist of high lift devices such as slats and flaps as well as flight spoilers and trim systems.
A: No airliners take off with full flaps. High-altitude airports and higher temperatures cause airplanes to use reduced flap settings to ensure adequate climb performance. This requires accelerating to a higher speed before lifting the nose for flight (rotation).
Increasing flap angle increases the lift coefficient, and therefore reduces stalling speed and the required takeoff speed (the same lift will be created at smaller air speed due to greater lift coefficient). This reduces the takeoff distance.
The purpose of extended wing flaps is to create additional lift so that the plane can take off with greater ease. As previously mentioned, wing flaps can be adjusted to a particular angle. While in the cockpit, the pilot can adjust the angle of the plane's extended wing flaps to create additional lift.
How do pilots know when to deploy the flaps? The flaps allows the aircraft to fly and land at low airspeeds. It is deployed in stages during approach when the aircraft is slowing down. Maximum and minimum speeds for each flaps setting are shown on the airspeed indicator (glass cockpit) or on placards.
Some popular training aircraft POHs (like the Cessna 172) recommends that you shouldn't use full flaps when you are landing in strong crosswinds. Why? Flaps will provide you with more lift, allowing you to fly at lower airspeeds. The lower your airspeed is, the less effective your controls become.
Because flap deflection usually opens a gap in the wing and creates a discontinuous trailing edge, it slightly increases drag, and drag tends to reduce the climb rate.