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AI.II.D.S1FAA-S-ACS-25 · Nov 2023Skills

Deliver instruction on principles of flight, including at least three of the elements l...

ACS element text (the applicant demonstrates understanding of)

Deliver instruction on principles of flight, including at least three of the elements listed in K1 through K6.

Bottom line

The four forces acting on an aircraft in straight-and-level, unaccelerated flight are thrust, drag, lift, and weight. Stability is the inherent quality of an aircraft to correct for conditions that may disturb its equilibrium and to return to or to continue on the original flight path. The two types of stability are static and dynamic.

FAA references

  1. PHAK ch. 4 (p. 4-1) — FAA-H-8083-25C (2023)
  2. PHAK ch. 5 (p. 5-14) — FAA-H-8083-25C (2023)
  3. PHAK ch. 5 (pp. 5-14–5-15) — FAA-H-8083-25C (2023)
  4. PHAK ch. 5 (p. 5-1) — FAA-H-8083-25C (2023)
  5. PHAK ch. 4 (p. 4-7) — FAA-H-8083-25C (2023)
  6. PHAK ch. 5 (p. 5-33) — FAA-H-8083-25C (2023)
  7. AFH ch. 5, Accelerated Stalls (p. 5-19) — FAA-H-8083-3C
  8. PHAK ch. 5 (p. 5-9) — FAA-H-8083-25C (2023)
  9. PHAK ch. 5 (pp. 5-30–5-31) — FAA-H-8083-25C (2023)
  10. SEA ch. 2 (p. 2-4) — FAA-H-8083-23
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