Mechanization of the wing of the aircraft. Description. A photo. Video.
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Mechanization of the wing of the aircraft. Description. A photo. Video.

Mechanization of the wing of the aircraft. Description. Photo. Video.

The term “wing mechanization” in English sounds like “high lift devices”, which literally means devices for increasing lift. This is precisely the main purpose of wing mechanization, and where the planes related to wing mechanization are and how lift force is increased, and also why this is needed, this article will tell.

Mechanization of the wing of the aircraft. Description. A photo. Video.

Mechanization of the wing - the list of devices that are installed on the wing of the plane to change its characteristics during the different stages of the flight. The main purpose of an airplane wing - creating lift. This process depends on several parameters - speed of the aircraft, the air density, the area of ​​the wing and its lift coefficient.

Mechanization of the wing of the aircraft. Description. A photo. Video.

Mechanization wing directly affects the area of ​​the wing and its lift coefficient, and indirectly by its velocity. The lift coefficient is dependent on the curvature of the wing and its thickness. Accordingly, it can be concluded that the mechanization of the wing apart from the wing area also increases its curvature and thickness profile.

Mechanization of the wing of the aircraft. Description. A photo. Video.

In fact not the case, because the increase in the thickness of the profile associated with great technological difficulties, is not as effective and more increases the drag, because the item must be dropped, respectively, the mechanization of the wing area and increases its curvature. This is done by moving parts (planes) located at certain points of the wing. By location and functions, the mechanization of the wing is divided into flaps, slats and spoilers (Interceptor).

The flaps of the aircraft. The main types.

Flaps - the first of the invented types of wing mechanization, they are also the most effective. They were widely used before the Second World War, and during and after their construction was modified and, also, new types of flaps were invented. The main characteristics that indicate that this flap really is it is its location and the manipulations that occur to it. The flaps are always on the rear edge of the wing and always go down, and, moreover, can be pulled back. When lowering the flap, the wing curvature increases, and when it is extended, the area increases. And once the lift force of the wing is directly proportional to its area and the lift coefficient, then if both values ​​increase, the flap performs its function most efficiently. According to their device and manipulation flaps are divided into:

  • simple flaps (the first and most simple form of the flap)
  • Panel-mounted flaps
  • slotted flaps
  • Fowler flaps (the most effective and most widely used in civil aviation kind of flap)

Mechanization of the wing of the aircraft. Description. A photo. Video.

How all of the above flaps function are shown in the diagram. A simple flap, as can be seen from the diagram, is simply deflected down the rear edge of the wing. Thus, the curvature of the wing increases, but the low pressure area above the wing decreases, because simple flaps are less effective than the shield flaps, the upper edge of which does not deflect and the low pressure area does not lose in size.

Slit flap gets its name because it cracks formed after the rejection. This slot allows passage of the air stream to a low pressure and it is directed so as to prevent flow separation (a process during which the magnitude of the lifting force decreases sharply), giving it extra energy.

Mechanization of the wing of the aircraft. Description. A photo. Video.

Fowler flap pushed back and down, what increases the area and the curvature of the wing. Usually, it is designed so that when the nomination also created slit or two or even three. Accordingly, it performs its function most efficiently and can produce an increase in lifting force to 100%.

Slats. Main functions.

Slats - deflecting surface at the leading edge of the wing. Its structure and functions are similar to the Fowler Flaps - deflected forward and downward, and slightly increasing the curvature of the area to form a slot for the passage of the air flow to the upper edge of the wing, thus contributing to increase lift. Slats, simply drop down, that do not create a gap called the flap and only increase the curvature of the wing.

Mechanization of the wing of the aircraft. Description. A photo. Video.

Spoilers and tasks.

Spoilers. Before considering the spoilers, it should be noted that when creating an additional lift, all of the above devices create additional drag, which leads to a reduction in speed. But this happens as a consequence of increasing the lift, while the task of spoilers is specifically a significant increase in drag and pressing the aircraft to the ground after touching. Accordingly, this is the only device for mechanization of the wing, which is on its upper surface and is deflected upwards, which creates the clamping force.

Mechanization of the wing of the aircraft. Description. A photo. Video.

And why do you need to increase the lift? Generally requires less increase in lift, as the aircraft speed decrease, at least in civil aviation. As these two values ​​are directly related, and therefore occurs at the expense of one another.

Mechanization of the wing of the aircraft. Description. A photo. Video.

Reducing the speed necessary during takeoff and landing to ensure greater safety and reduce the length of the runway. In addition, combat aircraft often when performing a particular maneuver is necessary to quickly increase or decrease the lift, which serves the mechanization of the wing.

Parts of the aircraft

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