PA.VIII.D.K1bFAA-S-ACS-6C · Nov 2023Knowledge

b. Indication of the aircraft attitude

ACS element text (the applicant demonstrates understanding of)

Flight instruments as they relate to: b. Indication of the aircraft attitude

Bottom line

The relationship of the miniature aircraft to the horizon bar is the same as the relationship of the real aircraft to the actual horizon. The attitude indicator gives a direct and immediate indication of the pitch attitude of the aircraft.

Key numbers

Key numbers for b. Indication of the aircraft attitude
NumberWhat it means
100° to 110° bank limits on some attitude indicators, depending on make and modelBank limits
60° to 70° pitch limits on some attitude indicators, depending on make and modelPitch limits
+/- 25° vertical pitch display limit on some attitude indicatorsTumble limit
15 percent of true airspeed gives the approximate bank angle for a standard rate turnBank rule

FAA references

  1. PHAK ch. 8 (p. 8-18) — FAA-H-8083-25C (2023)
  2. IFH ch. 6 (pp. 6-4–6-5) — FAA-H-8083-15B
  3. PHAK ch. 8 (p. 8-19) — FAA-H-8083-25C (2023)
  4. IFH ch. 7 (pp. 7-19–7-20) — FAA-H-8083-15B
  5. AFH ch. 18 (p. 18-15) — FAA-H-8083-3C
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