Takeoff and Go-Around Function (TO/GA)
Takeoff is a flight director only function of the TO/GA mode. Flight director pitch
and roll commands are displayed and the autothrottle maintains takeoff N1 thrust
limit as selected from the FMC.
Both flight directors (F/Ds) must be ON to engage the takeoff mode prior to
starting the takeoff. The F/D takeoff mode is engaged by pushing the TO/GA
switch on either thrust lever. The Flight Mode Annunciations (FMAs) display FD
as the A/P status, TO/GA as the pitch mode, and blank for the roll mode.
Option - Flight director commands HDG SEL on takeoff.
The Flight Mode Annunciations (FMAs) display FD as the A/P status, TO/GA as
the pitch mode, and HDG SEL as the roll mode.
During takeoff, pushing a TO/GA switch engages the autothrottle (A/T) in the N1
mode. The A/T annunciation changes from ARM to N1 and thrust levers advance
toward takeoff thrust.
The F/D can also be engaged in the takeoff mode with the F/D switches off. If a
TO/GA switch is pushed after 80 knots below 2000 feet AGL and prior to 150
seconds after lift–off, the F/D command bars automatically appear for both pilots.
During takeoff, prior to 60 KIAS:
Option - Flight director commands HDG SEL on takeoff.
Takeoff is a flight director only function of the TO/GA mode. Flight director pitch
and roll commands are displayed and the autothrottle maintains takeoff N1 thrust
limit as selected from the FMC.
Both flight directors (F/Ds) must be ON to engage the takeoff mode prior to
starting the takeoff. The F/D takeoff mode is engaged by pushing the TO/GA
switch on either thrust lever. The Flight Mode Annunciations (FMAs) display FD
as the A/P status, TO/GA as the pitch mode, and blank for the roll mode.
Option - Flight director commands HDG SEL on takeoff.
The Flight Mode Annunciations (FMAs) display FD as the A/P status, TO/GA as
the pitch mode, and HDG SEL as the roll mode.
During takeoff, pushing a TO/GA switch engages the autothrottle (A/T) in the N1
mode. The A/T annunciation changes from ARM to N1 and thrust levers advance
toward takeoff thrust.
The F/D can also be engaged in the takeoff mode with the F/D switches off. If a
TO/GA switch is pushed after 80 knots below 2000 feet AGL and prior to 150
seconds after lift–off, the F/D command bars automatically appear for both pilots.
During takeoff, prior to 60 KIAS:
- The pitch command is 10 degrees nose down.
- The roll command is wings level.
- The autothrottle is engaged in the N1 mode.
- Thrust levers advance until the engines reach takeoff thrust.
- The FMAs display N1 for the autothrottle mode, TO/GA for the pitch mode,
and blank for the roll mode.
Option - Flight director commands HDG SEL on takeoff.
- The FMAs display N1 for the autothrottle mode, TO/GA for the pitch mode,
and HDG SEL for the roll mode.
