737 MAX Flight Crew Operations Manual
Automatic Flight -
System Description
MN-FLT-OH-201
4.20.11
Automatic Flight Operations
The phases of flight for automatic flight operations are:
Automatic Flight Takeoff and Climb
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. The autopilot may be engaged after takeoff.
1B785, 1B786, 1J585 - 1J594
Both 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 FMAs display FD as the A/P status, TO/GA as the pitch mode, and
HDG SEL (as installed) as the roll mode.
During takeoff, pushing a TO/GA switch engages the autothrottle 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.
1B785, 1B786, 1J585 - 1J594
During takeoff, prior to 60 KIAS:
• the pitch command is 10 degrees nose down
• the roll command is wings level or HDG SEL
• 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 HDG SEL for the roll mode.
At 60 KIAS, the F/D pitch commands 15 degrees nose up.
At 84 KIAS, the A/T mode annunciates THR HLD.
At LIFT-OFF:
• the pitch command continues at 15 degrees until sufficient climb rate is
acquired. Pitch then commands MCP speed (normally V2) plus 20 knots
• if an engine failure occurs on the ground, the pitch command target
speed at lift-off is V2 or airspeed at lift-off, whichever is greater.
1B401, 1B402, 1B801 - 1B824
• the roll command maintains wings level or
1B785, 1B786, 1J585 - 1J594
• the roll command maintains HDG SEL. Bank angle is limited to 8
degrees below 400 feet, and 10–30 degrees selectable above 400 feet
AGL.
• Takeoff and climb
• Enroute
• Approach and landing
• Go–around
March 1, 2021
