FlyCurrentFLYCURRENT
CA.I.G.K1bFAA-S-ACS-7B · Nov 2023Knowledge

b. Secondary flight controls

ACS element text (the applicant demonstrates understanding of)

Airplane systems, including: b. Secondary flight controls

Bottom line

Secondary flight control systems may consist of wing flaps, leading edge devices, spoilers, and trim systems. Flaps allow a compromise between high cruising speed and low landing speed because they may be extended when needed and retracted into the wing's structure when not needed. There are four common types of flaps: plain, split, slotted, and Fowler flaps.

Key numbers

Key numbers for b. Secondary flight controls
NumberWhat it means
four common types: plain, split, slotted, and FowlerFlap types

FAA references

  1. PHAK ch. 6 (p. 6-8) — FAA-H-8083-25C (2023)
  2. PHAK ch. 6 (p. 6-2) — FAA-H-8083-25C (2023)
  3. PHAK ch. 5 (p. 5-49) — FAA-H-8083-25C (2023)
  4. PHAK ch. 6 (p. 6-12) — FAA-H-8083-25C (2023)
Members lesson

Build understanding you can use

Unlock the full lesson and continue studying this element.

  • Full teaching sections: What it is; Key points
  • Check your understanding with answers you can reveal
  • Common mistakes paired with the FAA facts that correct them
View membership options