Managed and Selected Modes: Who Set the Performance Target?
Managed Modes. Managed modes are used for long-term lateral, vertical,
and speed profiles as determined by the FMGS and modified by entries on the
MCDU. During takeoff, managed modes engage automatically when the pilot sets the thrust levers to TO or FLEX detent. In flight, managed guidance modes are armed or engaged by pressing the respective knob on the FCU.
LNAV engages automatically if a DIR TO is selected on the MCDU.
Selected Modes. Selected modes are used for temporary lateral, vertical,
and speed revisions. The aircraft is guided according to values selected by the
crew on the FCU. Selected modes are engaged by pulling the respective knob