Speed./.MACH.Switch
When rotated,.changes the.value.displayed.in the.SPD/MACH.window.
When pulled,.the.selected.speed.displayed.in the.SPD/MACH.window engages.

When pushed, FMGS.managed.speed engages, the.managed.speed.light.illuminates and.dashes appear.in.the.SPD/MACH window.
Heading./.Track.Knob

When rotated,.changes the.value.displayed.in
the.HDG/TRK window.
When pulled,.the.selected.heading/track
displayed.in.the.HDG/TRK window engages.
If a heading.is selected prior.to pulling.the
knob, the.airplane.turns in.the shortest
direction.to the.selected.heading.
If a heading.is selected after pulling.the.knob,
the.airplane.turns.to.the.new heading.in.the
direction.the.knob.is turned.
If.the.knob.is pulled during a turn,.the.airplane
rolls out.on.the.existing.heading.

When pushed, LNAV engaes, the.LAT.light
illumonates and.dashes appear.in.the
HDG/TRK window.

LOC.Switch

Arms, engages, or.disengages the.LOC.mode. It.takes a.minimum.of 3.seconds.after.arming for the.LOC.to.engage.in.the.capture.mode
Flight.Director.Mode.Switch
When pushed, changes between heading/vertical.speed.and.track/flight path angle.display.modes of both.flight directors.
AP.Switches
Engages/disengage.selected.autopilot. Illuminate.green.when.the.autopilot.is engaged.
A/THR.Switch

Arms or.deactivates autothrottle.system. Illuminates green.if the.autothrottle.is armed.or engaged.

-.37-
Altitude.Knob Metric.ALT Switch
Changes the.altitude.displayed.in the.ALT
window.
The.inner.knob.rotates to.change.the altitude
value.
The.outer.knob.provides.selection.of 100.or
1000.foot.increments.

When pulled,.the.open.climb or.open.descent
engages.

When pushed, VNAV.engages and.the
LVL/CH.light.illuminates.

EXPED.Switch
Engages.the.EXPED.mode.to reach.the altitude.window with.maximum.vertical gradient..The.expedite.mode.can.only.be disengaged.by.the.engagement of another mode.
When pushed, the.FCU.altitude.is displayed.in meters.on.ECAM.
Vertical.Speed./.Flight.Path.Angle.Knob
When rotated,.selects the.vertical speed.or flight path.angle.displayed.in the.V/S./.FPA window. When the.knob.is pulled,.vertical.speed engages. When the.knob.is pushed, the.airplane immediately.levels.off.
APPR.Switch
Arms, engages or.disengages the.following modes: LOC.and.G/S.modes if an.ILS approach.has been.slected.from.the.MCDU.database. APP.NAV,.FINAL.and.FINAL.APP.modes.if.a non-precision.approach.has been.selected from.the.MCDU.database.

-.38-
3.4..a320.EFIS

Barometric.Window
Displays.Barometric reference.
　
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本文鏈接地址：Flight Deck Documentation AIRBUS A320 空客A320駕駛艙文件(19)