Boeing 737-800 - Automatic Flight En Route

737 Flight Crew Operations Manual
Automatic Flight -
System Description
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 4.20.13
Automatic Flight En Route
The autopilot and/or the flight director can be used after takeoff to fly a lateral
navigation track (LNAV) and a vertical navigation track (VNAV) provided by the
FMC.
Other roll modes available are:
• VOR course (VOR/LOC)
• heading select (HDG SEL).
Engage A/P
• A/P engages in
CMD
Thrust Reduction
• A/T N1 mode
engages at
CLB power
Above 400 ft RA
• VNAV –
engages
84 knots –
• A/T THR
HLD mode
engages
Push TO/GA
Switch (both FD
ON and A/T, LNAV,
VNAV armed)
VNAV SPD
LNAV
N1
CMD
VNAV SPDLNAVN1
FD
VNAV SPD
LNAV
ARM
FD
TO/GATHR HLD
FD
TO/GAN1
FD
VNAV SPDLNAVTHR HLD
FD
VNAV
VNAV
LNAV
LNAV
50 ft RA
• altitude – LNAV
engages
TO/GALNAVTHR HLD
FD
VNAV
800 ft above
mode engages
elevationfield
• A/T ARM
September 15, 2016