N1 Set
N1 SET Outer (Large) Knob

AUTO –

  • Both reference N1 bugs are set by the FMC based on the
    N1 limit page and takeoff reference page.
  • Displays the reference N1 bugs at the active N1 limit for
    autothrottle (A/T).

Position 1 or 2 –
  • Respective N1 reference bug and readout is manually set by
    turning the N1 SET inner knob.
  • Has no effect on A/T operation.

N1 SET Inner Knob (spring-loaded to center)

Rotate – Positions reference N1 bug(s) and readouts when the N1
SET outer knob is set to BOTH, 1, or 2 on the Upper Display Unit N1
Indicators.
No Q and A available for this module
BOTH –

  • Both reference N1 bugs and readouts are manually set by
    turning the N1 SET inner knob.
  • Has no effect on A/T operation.