曝光台 注意防骗
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can cause disagreement between Captain and First Officer F/D
displays and affect A/P operation.
AUTO FLIGHT
737 Sec. 6.4 Page 49
Flight Manual Continental Rev. 11/15/02 #41
Autopilot / Flight Director (As Installed)
BCD Pushing a CMD or CWS switch engages related A/P in CMD or CWS
and illuminates switch lights. A/P can operate in CMD, CWS, or a combination of
CMD and CWS.
< Command Engage (CMD ENGAGE) Switch (A or B):
Push –
· Engages A/P
· Enables all command modes
· Displays CMD in A/P status display
· Pushing an engage switch or engaging paddle for second A/P, while
not in approach mode, engages second A/P and disengages first A/P
· Enables CWS operation
· CWS engages if:
- Pitch or roll mode not selected
- Pitch or roll mode deselected
- Pitch or roll mode manually overridden with control column force.
· CWS engaged displays:
- CWS P and/or CWS R in A/P status display
- Blank in pitch and/or roll mode FMA
· When approaching a selected altitude in CWS P, the pitch mode
engages in ALT ACQ and ALT HOLD when reaching selected altitude
· When approaching a selected radio course in CWS R with VOR/LOC or
approach mode armed, VOR/LOC engages when course is intercepted
AUTO FLIGHT
Sec. 6.4 Page 50 737
Rev. 11/15/02 #41 Continental Flight Manual
· If pitch is manually overridden while in ALT HOLD and control force is
released within 250 feet of selected altitude, A/P pitch mode engages
in ALT ACQ and returns to selected altitude in ALT HOLD mode.
During F/D only operation while pitch or roll commands are more than 1/2
scale from center, pushing a CMD A or B switch engages the A/P in CWS for
pitch and/or roll and the related F/D bar(s) retract.
= Control Wheel Steering Engage (CWS ENGAGE) Switch (A or B):
Push –
· Engages A/P
· Engages pitch and roll modes in CWS. Other pitch and roll modes not
enabled
· Displays CWS P and CWS R in A/P status display
· CMD not displayed in A/P status display
· F/Ds, if ON, display guidance commands and FD annunciates in A/P
status display. A/P does not follow commands while in CWS
· A/P pitch and roll controlled by pilot with control wheel pressure
· When control pressure released, A/P holds existing attitude. If aileron
pressure released with 6 degrees or less bank, the A/P rolls wings level
and holds existing heading. Heading hold feature inhibited:
- Below 1500 feet RA with gear down
- After LOC capture in APP mode
- After VOR capture with TAS 250 knots or less.
> Autopilot Disengage (DISENGAGE) Bar (As Installed)
Pull down –
· Exposes yellow background
· Disengages both A/Ps
· Prevents A/P engagement.
Lift up –
· Conceals yellow background
· Enables A/P engagement.
AUTO FLIGHT
737 Sec. 6.4 Page 51
Flight Manual Continental Rev. 11/15/02 #41
? Master (MA) Flight Director Indicators (white letters)
If a F/D switch is ON, the light indicates which FCC is controlling the F/D
modes.
· Illuminated – related FCC is controlling F/D modes.
· Extinguished – F/D modes are controlled from opposite FCC
· Both lights illuminated – each FCC is controlling modes for related
F/D.
@ Flight Director (F/D) Switch
Left F/D switch activates command bars on the Captain attitude indicator.
Right F/D switch activates command bars on the First Officer attitude
indicator.
ON –
· In flight with A/P ON and F/Ds OFF, turning a F/D switch ON engages
F/D in currently selected A/P modes
· Displays FD in A/P status display if A/P is OFF or engaged in CWS
· Enables command bar display on related pilot’s attitude indicator
· Command bars are displayed if command pitch and/or roll modes are
engaged
· On ground, arms pitch and roll modes for engagement in TO/GA and
wings level when TO/GA switch is pushed.
OFF – Command bars retract from related pilot attitude indicator.
AUTO FLIGHT
Sec. 6.4 Page 52 737
Rev. 11/15/02 #41 Continental Flight Manual
>>@ Autopilot Engage Paddles (As Installed)
< CMD – Enables all command modes for AFDS in addition to CWS.
· With no pitch or roll command mode active, autopilot pitch and roll
will be in CWS.
= CWS – Autopilot pitch and roll are controlled through control wheel and
column pressures.
· If attitudes acquired exceed autopilot limits, autopilot returns to
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737 FLIGHT MANUAL 737飞行手册3(82)
