Although the plane is seen as an indispensable way to travel quickly and comfortably, this vehicle may be among the phobias of most of us. Especially the the plane had to turn upside down Contradictory situations like these further complicate matters.

Without further ado, how is it possible for planes to fly upside down? Which aircraft can survive such a disaster scenario? let’s see.

Four different flight components are required to fly an airplane inverted.

The four forces that act on an aircraft and are necessary for flight are; thrust (force), drag, lift and gravity. Three of these four components continue to exert virtually the same physical force even when the aircraft is turning upside down.

This is because, regardless of whether an aircraft continues its normal flight or vice versa, In principle the way of flying remains the same. No matter which direction the plane flies, if it wants to stay in the air, it must have lift.

One of the problems with flying upside down is that an airplane is generally designed to produce lift only when flying right side up.

This is because the upper parts of the wing profiles are largely rounded and the lower parts are flat. In this case air It forces the aircraft to move faster in the higher areas than in the lower areas.

Different air speeds create higher pressure under the wings of the aircraft. On the wings this pressure decreases in the opposite direction. In fact, this pressure difference How airplanes can generate lift and fly through the air explains.

Basically, when the plane is upside down, this effect is the opposite and this plane naturally produces a downward force instead of lift.

The downward force that increases as the aircraft turns is only greater By varying the angle of attack replaceable. This is the angle created by the airflow flying over the leading parts of the wings.

Even if the airfoil is designed to produce lift only when the right side is up, this will only be the case cruising and climbing can occur during. In the opposite case it would not be possible to land the plane.

Under normal circumstances, when the pilot heads towards the airport to land, he tilts the nose of the aircraft forward and changes the angle of attack.

This action of the pilot, It reduces the effect of the lift force and the altitude of the aircraft decreases. The same logic applies when the plane is inverted. Regardless of the shape of the airfoil, the pilot can change the angle of attack and activate the lift force by creating a high-pressure area under the wings.

To do this while the aircraft is in an inverted position, the pilot must lift the nose of the aircraft. But when the plane turns upside down, everything turns upside down and causes this situation lowering the nose of the aircraft comparable.

Aircraft designed for inverted flight, such as aerobatic and stunt aircraft, have much simpler wing profiles.

The wings of these aircraft are rounded at the top and bottom, and since the air is moving at the same speed at the top and bottom, the lift force is a symmetrical airfoil creates.

The purpose of symmetrical airfoils is to allow aircraft to fly the same way as if they were right side up, even if their angles are reversed. Methods of pilots creating lift force in such aircraft, purely angle of attack It depends.

To summarize: “How can airplanes fly upside down?” The answer to the question is: produce buoyancy reserved. This is achieved by changing the angle of attack and different airfoil profiles.

Can all planes fly upside down?

Demonstration aircraft and aerobatic aircraft are specially designed to fly right side up or upside down. Therefore, an inverted flight is not a problem for them. However, the pilot must adjust the angle of attack correctly to activate the lift force when inverted, and this is a problem for aircraft, including passenger planes. other aircraft types are quite challenging due to their design It is possible.

However, if the pilot of a commercial or passenger aircraft has the expertise to turn the aircraft around, Theoretically, it is possible for him to fly upside down, albeit for a short time. However, this is a dangerous situation that requires experience, and not every aircraft is suitable for this.

In a scene from the movie Flight, a passenger plane flies for a short time. forced to fly inverted It is possible to see the scenario:

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