Flight Instructor Airplane · Area X: Slow flight, Stalls, and Spins
Task E. Accelerated Stalls
FAA-S-ACS-25 · Effective 2024-05-31
Knowledge
What you should understand and be able to explain.
- AI.X.E.K1Purpose of and procedures for accelerated stalls.
- AI.X.E.K2Aerodynamics associated with accelerated stalls in various airplane configurations, including the relationship between angle of attack, airspeed, load factor, power setting, airplane weight and center of gravity, airplane attitude, and yaw effects.
- AI.X.E.K3Stall characteristics as they relate to airplane design, and recognition impending stall and full stall indications using sight, sound, or feel.
- AI.X.E.K4Factors leading to an accelerated stall and preventive actions.
- AI.X.E.K5Fundamentals of stall recovery.
- AI.X.E.K6Common errors related to this Task.
Risk management
Risks to recognize and decisions to consider.
- AI.X.E.R1Factors and situations that could lead to an inadvertent accelerated stall, spin, and loss of control.
- AI.X.E.R2Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
- AI.X.E.R3Stall warning(s) during normal operations.
- AI.X.E.R4Stall recovery procedure.
- AI.X.E.R5Secondary stalls, cross-control stalls, and spins.
- AI.X.E.R6Effect of environmental elements on airplane performance related to accelerated stalls (e.g., turbulence, microbursts, and high-density altitude).
- AI.X.E.R7Collision hazards.
- AI.X.E.R8Distractions, task prioritization, loss of situational awareness, or disorientation.
Skill elements and task objectives
This page covers knowledge and risk management. For the complete task, including skill standards, open the FAA document (PDF).