AI.II.P.K5cFAA-S-ACS-25 · Nov 2023Knowledge

c. Zero side slip

ACS element text (the applicant demonstrates understanding of)

Aerodynamics of OEI operation including: c. Zero side slip

Bottom line

Aircraft Flight Manual/Pilot’s Operating Handbook (AFM/POH) performance figures for OEI flight were determined at zero sideslip, although that fact may not be expressly stated in the manual or handbook.

Key numbers

Key numbers for c. Zero side slip
NumberWhat it means
approximately 2° toward the operative engineBank
one-third to one-half toward the operative engineBall
two to three degrees of bank at VyseLight twins
8–10° bank toward the operative engineAilerons alone
approximately 18 to 36 inchesYaw string

FAA references

  1. FAA-P-8740-66, Flying Light Twins Safely — FAA-P-8740-66
  2. AFH ch. 13 (pp. 13-27–13-29) — FAA-H-8083-3C
Members lesson

Build understanding you can use

Unlock the full lesson and continue studying this element.

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