AA.V.B.R2
Risk managementRange and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, stick shaker, etc.).
From the FAA library
- Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Stall Recognition
Indications of a full stall are typically that an uncommanded nose down pitch cannot be readily arrested, and may be accompanied by an uncommanded rolling motion. For airplanes equipped with stick pushers, their activation is also an indicator ... full stall. Although it depends on the degree to which a stall has progressed, some loss of altitude is expected during recovery. The longer it takes for the pilot to recognize an impending stall, the more likely it is that…
- Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls
Stalls A stall is an aerodynamic condition which occurs when smooth airflow over the airplane’s wings is disrupted, resulting in loss of lift. Specifically, a stall occurs when the AOA—the angle between the chord line of the wing ... attitude, and at any power setting. [Figure 5-8] Figure 5-8. Critical angle of attack and stall. For these reasons, it is important to understand factors and situations that can lead to a stall, and develop proficiency in stall…
- Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Accelerated Stalls
Accelerated Stalls While pilots may understand the cause of an accelerated stall, it takes training to experience how these stalls develop and occur. The objectives of demonstrating an accelerated stall are to determine the stall characteristics of the airplane, experience ... stalls at speeds greater than the +1G stall speed, and develop the ability to instinctively recover at the onset of such stalls. This is a maneuver only commercial pilot and flight instructor applicants may be required to perform…
- Chapter 5: Maintaining Aircraft Control: Upset Prevention and Recovery Training › Stalls › Approaches to Stalls (Impending Stalls), Power-On or Power-Off
These maneuvers require flight in which the airplane approaches a stall, but the pilot initiates recovery at the first indication, such as by a stall warning device activation. Impending stalls may be entered and performed in the same attitudes ... configurations as the full stalls or other maneuvers described in this chapter. However, instead of allowing the airplane to reach the critical AOA, the pilot should immediately reduce AOA once the stall warning device goes off, if installed, or recognizes…
- Chapter 3. ICING EFFECTS, PROTECTION, AND DETECTION › 3-11. EFFECTS OF ICING ON CRITICAL SYSTEMS › c. Stall Warning Systems
Stall Warning Systems (1) Stall warning systems provide essential information to pilots. A loss of these systems can exacerbate an already hazardous situation. These systems range from a sophisticated stall warning vane to a simple airflow-activated stall warning switch ... stall warning vane (also called an “AOA sensor” since it is a part of the stall warning system) has a wedge-like shape, has freedom to rotate about a horizontal axis, and is connected to a transducer that converts…