Slow Flight & StallsACS IV.A
Slow Flight
Fly at minimum controllable airspeed and understand the flight envelope edge
~14 min FAA-S-ACS-6C
60-Second Review
Quick overviewDemonstrate the ability to fly the aircraft at an airspeed at which any further increase in angle of attack, increase in load factor, or reduction in power would result in a stall indication (e.g., stall horn, buffet). Maintain heading, altitude, and coordinated flight while maneuvering at this airspeed.
FAA-H-8083-3C Ch. 4; FAA-S-ACS-6C IV.A
ACS Tolerances
Altitude: ±100 feetHeading: ±10°Airspeed: +10/−0 knots from the speed at which stall indication occursBank in turns: ±10° (typically 10–15° banks)
Top Errors
- 1. Stalling the aircraft during slow flight
- 2. Losing altitude during configuration changes
- 3. Fixating on the airspeed indicator
Examiner Focus
- 1. Can the applicant establish and maintain flight at the minimum controllable airspeed with a stall warning present?
- 2. Does the applicant maintain coordinated flight throughout (ball centered)?
- 3. Can the applicant make heading and altitude changes while maintaining slow flight?