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What is the purpose of leading edge?
When a wing is pitched up to a high angle of attack, the airflow above the wing can break away and the wing then stalls. Drooping the leading edge reduces the angle at which the airflow strikes the wing and helps to maintain smooth airflow and hence lift at higher angles and lower airspeeds.
What is the purpose of the stall strip?
Stall strips are usually located near the inboard leading edge area of the wing. Their purpose being (supposedly) to cause the inboard area of the wing to begin to stall first.
How does a stall indicator work?
The “lift detector” stall warning horn uses a tab that can be lifted during the preflight walk-around to sound the stall horn and requires an electrical system to operate. When the angle of attack increases such as during an approach to a stall, disrupted airflow raises the tab and that sounds the electronic buzzer.
Which fall protection is not allowed at a leading edge?
Each employee on a walking/working surface 6 feet (1.8 m) or more above a lower level where leading edges are under construction, but who is not engaged in the leading edge work, shall be protected from falling by a guardrail system, safety net system, or personal fall arrest system.
When does the trailing edge become the leading edge?
The first is an aerodynamic definition, the second a structural one. As an example of the distinction, during a tailslide, from an aerodynamic point of view, the trailing edge becomes the leading edge and vice versa but from a structural point of view the leading edge remains unchanged.
What happens when a wing leading edge droops?
When a wing is pitched up to a high angle of attack, the airflow above the wing can break away and the wing then stalls. Drooping the leading edge reduces the angle at which the airflow strikes the wing and helps to maintain smooth airflow and hence lift at higher angles and lower airspeeds.
When does the stagnation point move below the leading edge?
When your wing is at a low angle of attack (AOA), the stagnation point is on the leading edge, and when your wing is at a high angle of attack, the stagnation point moves below the leading edge. Stall strips begin working when your wing is at a high angle of attack.
What is the purpose of a stall strip?
A stall strip is a fixed device employed on the leading edge of fixed-wing aircraft to modify the aerodynamic characteristics of the airfoil.