CA.IV.C.S9FAA-S-ACS-7B · Nov 2023Skills
Lift off at the lowest possible airspeed and remain in ground effect while accelerating...
Lift off at the lowest possible airspeed and remain in ground effect while accelerating to VX or VY, as appropriate.
Bottom line
Best angle-of-climb speed (VX)—the airspeed at which an aircraft gains the greatest amount of altitude in a given distance. Best rate-of-climb speed (VY)—the airspeed that provides the most altitude gain in a given period of time. A pilot should not attempt to force an aircraft to become airborne with a deficiency of speed.
FAA references
- PHAK ch. 5 (p. 5-12) — FAA-H-8083-25C (2023)
- AFH ch. 5, Performing the Slow Flight Maneuver (p. 5-11) — FAA-H-8083-3C
- PHAK ch. 8 (p. 8-10) — FAA-H-8083-25C (2023)
- PHAK ch. 11 (p. 11-12) — FAA-H-8083-25C (2023)
- AIM 7-6-7 (Mountain Flying) — AIM Basic 2/20/25 w/ Change 1 (8/7/25) & Change 2 (1/22/26)
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