AI.X.B.K2FAA-S-ACS-25 · Nov 2023Knowledge
Power required at various airspeeds between cruise airspeed and critically slow airspee...
Power required at various airspeeds between cruise airspeed and critically slow airspeeds near the critical angle of attack.
Bottom line
The power required to achieve equilibrium in constant-altitude flight at various airspeeds is depicted on a power required curve. The power required curve illustrates the fact that at low airspeeds near the stall or minimum controllable airspeed, the power setting required for steady, level flight is quite high.
FAA references
- PHAK ch. 11 (p. 11-11) — FAA-H-8083-25C (2023)
- AFH ch. 5, Slow Flight (p. 5-10) — FAA-H-8083-3C
- PHAK ch. 5 (p. 5-3) — FAA-H-8083-25C (2023)
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