CA.VII.B — Power-Off Stalls

What does ACS code CA.VII.B cover?

ACS Code CA.VII.B covers "Power-Off Stalls" under Area of Operation VII (Slow Flight and Stalls) for the FAA Commercial Pilot Airplane certificate (FAA-S-ACS-7B). Candidates are tested on knowledge elements and risk management factors defined in 14 CFR regulations and FAA handbooks (PHAK / AFH).

Task Specification & Required References

• ACS Document: FAA-S-ACS-7B (Commercial Pilot Airplane)
• Area of Operation: Area VII — Slow Flight and Stalls
• Task: Task B — Power-Off Stalls
• Primary FAA Sources: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25), Airplane Flying Handbook (FAA-H-8083-3) / Helicopter Flying Handbook (FAA-H-8083-21), Aviation Weather Handbook (FAA-H-8083-28), 14 CFR Parts 61, 91 & 107, Aeronautical Information Manual (AIM).

Airman Certification Standards Elements

Knowledge Elements

• CA.VII.B.K1: Aerodynamics associated with 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.
• CA.VII.B.K2: Stall characteristics as they relate to airplane design, and recognition impending stall and full stall indications using sight, sound, or feel.
• CA.VII.B.K3: Factors and situations that can lead to a power-off stall and actions that can be taken to prevent it.
• CA.VII.B.K4: Fundamentals of stall recovery.

Risk Management Elements

• CA.VII.B.R1: Factors and situations that could lead to an inadvertent power-off stall, spin, and loss of control.
• CA.VII.B.R2: Range and limitations of stall warning indicators (e.g., aircraft buffet, stall horn, etc.).
• CA.VII.B.R3: Stall warning(s) during normal operations.
• CA.VII.B.R4: Stall recovery procedure.
• CA.VII.B.R5: Secondary stalls, accelerated stalls, and cross-control stalls.
• CA.VII.B.R6: Effect of environmental elements on airplane performance related to power-off stalls (e.g., turbulence, microbursts, and high-density altitude).
• CA.VII.B.R7: Collision hazards.
• CA.VII.B.R8: Distractions, task prioritization, loss of situational awareness, or disorientation.

How do I study CA.VII.B?

1. Read each element for CA.VII.B in FAA-S-ACS-7B and note any you cannot explain in your own words.
2. Study each one in the FAA source it points to: the handbook chapter, the 14 CFR section or the AIM paragraph.
3. Practice with questions tagged CA.VII.B, and read the explanation for every miss.
4. Retest, then review the ACS codes you still miss on your practice test report.

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Related ACS tasks

• Previous task: CA.VII.A — Maneuvering During Slow Flight
• Next task: CA.VII.C — Power-On Stalls
• Same area: CA.VII.A — Maneuvering During Slow Flight
• Same area: CA.VII.C — Power-On Stalls
• Same area: CA.VII.D — Accelerated Stalls
• Same area: CA.VII.E — Spin Awareness