This works well as long as the air flows cleanly to the rear at the surface of the wing. In the rear wing area, a larger air volume is created and thus a negative pressure, which virtually pulls the wing upwards.
But this only works if the wing is at the correct angle of attack to the surrounding air. If the angle becomes too steep more than about 15 degrees , the streamlines at the rear end of the wing will separate from the wing's surface. Vortices are created. This is already a first warning sign. It gets even worse if the pilot doesn't intervene. He needs to push down the nose of the airplane to reduce the angle of attack. In this way he avoids the vortices and can ensure lift.
If he does not do this and the aircraft gets steeper and steeper in the air, a dangerous stall occurs, starting roughly at an angle of attack of degrees.
This means that the air above the entire wing begins swirling. The wing loses lift and thus its entire function. The airplane tilts forward and passes into the fall. When the plane is flying in curves, the stall can also occur only on one wing. The airplane then starts to spin and falls down like a stone.
Only at very high altitudes can experienced pilots succeed in regaining control over such a falling plane. Read more: Ethiopian Airlines plane crashes shortly after takeoff.
Especially when climbing, such situations almost always end in a crash. Commercial aircraft are most frequently involved in accidents at this phase of the flight. The slower an aircraft flies, the higher the angle of attack must be in order for the aircraft to have enough lift.
If it does not reach the necessary stallspeed, the stall occurs. Shortly after take-off, an aircraft needs considerable thrust in order to simultaneously increase its speed and gain altitude. If the thrust decreases during climb, this inevitably leads to a considerable loss of speed. In any case, it is important that the pilots know their speed and the angle of attack of the wings. If the sensor that dispalys this data is defective, the pilots must switch to a backup sensor.
A: It is possible that you will. If you make a very sharp turn downwind, allowing the airflow to slow, then a stall could result. If the wind suddenly shifts from a headwind to a tailwind, a stall can occur this would be a wind shear condition. The determining factor is whether the airflow detaches from the wing. If the turn is slow enough that the air remains attached, then it will not stall.
A standard turn allows the airflow across the wing to remain constant throughout as the airplane accelerates. A stall occurs when the critical angle of attack is exceeded — in your example, that would depend on the rate of turn. Skip to content. The Basics of Stalls: What You Should Know A common misconception is that stalls are attributed to a mechanical problem in an airplane.
More Popular Posts. How is Aluminum Metal Anodized? November 11, Products. November 10, Products. The incident is now also taught to commercial pilots, so they can recognize stall conditions when flying at a high altitude.
Journalist - Working in news media for over a decade with outlets including 9News and the Discovery Channel, Nick is an airline marketing specialist with a Masters level education. Working closely with AirAsia, Virgin Australia, Turkish Airlines and others, Nick provides unique insight and analysis on a variety of aviation topics.
Based in Sydney, Australia. Nicholas Cummins Journalist - Working in news media for over a decade with outlets including 9News and the Discovery Channel, Nick is an airline marketing specialist with a Masters level education.
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