AA.IV.A.K1FAA-S-ACS-11A · Nov 2023Knowledge

Energy management concepts.

ACS element text (the applicant demonstrates understanding of)

Energy management concepts.

Bottom line

The energy state of an airplane is the balance between airspeed, altitude, drag, and thrust and represents how efficiently the airfoil is operating. With this increased situational awareness pertaining to the energy condition of the airplane, the pilot has additional information to help prevent a loss of control scenario.

Key numbers

Key numbers for Energy management concepts.
NumberWhat it means
1G, unaccelerated, coordinated flight onlyStall speed valid
one weight, one CG (typically max gross, max forward)Weight and CG

FAA references

  1. AFH ch. 5, Stall Recognition (p. 5-13) — FAA-H-8083-3C
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