CA.VII.C.K1FAA-S-ACS-7B · Nov 2023Knowledge

Aerodynamics associated with stalls in various airplane configurations, including the r...

ACS element text (the applicant demonstrates understanding of)

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.

Bottom line

For a given configuration, the airplane always stalls at the same angle of attack, referred to as the critical angle of attack.

Key numbers

Key numbers for Aerodynamics associated with stalls in various airplane configurations, including the r...
NumberWhat it means
16°–20° depending on airplane designCritical AOA
2.0 load factor in a level altitude 60° banked turn60° bank load
41% above 1G stall speed in a coordinated, level 60° banked turn at 2GStall speed rise
1.41 load factor in a level altitude 45° banked turn45° bank load

FAA references

  1. PHAK ch. 5 (p. 5-27) — FAA-H-8083-25C (2023)
  2. AFH ch. 1 (pp. 1-13–1-14) — FAA-H-8083-3C
  3. AFH ch. 10 (p. 10-2) — FAA-H-8083-3C
  4. AFH ch. 5, Angle of Attack; Coordinated Flight (pp. 5-8–5-9) — FAA-H-8083-3C
Members lesson

Build understanding you can use

Unlock the full lesson and continue studying this element.

  • Full teaching sections: What it is; Key points; Rules and numbers; How it is done
  • Check your understanding with answers you can reveal
  • Common mistakes paired with the FAA facts that correct them
View membership options