Takeoff and route capture

The TOGA buttons select flight-director takeoff guidance; the A/T button arms the autothrottle. They are separate actions. Set up the flight plan, performance and thrust rating, press TOGA before takeoff, then check TO and ROLL on the FMA. Arm A/T separately.

Before takeoff

Review the departure path and selected lateral setup. Confirm the desired route is active and initial altitude is set.

Select takeoff guidance

Press the TOGA button on a thrust lever before takeoff. FSS says ground TOGA activates TO vertically and, below 100 kt, ROLL laterally. Check the FMA rather than assuming the button produced the expected state.

Understand TRACK

The FSS lateral page describes an automatic ROLL-to-TRACK transition under stated speed and bank conditions. TRACK holds a reference; it is not LNAV.

Watch for LNAV

FSS says armed LNAV engages after passing 200 ft in climb; the page does not specify the altitude reference. Watch the FMA for LNAV to become active.

Confirm the turn

After capture, compare the actual active leg, path and aircraft turn with the chart and clearance. If the guidance is not as expected, maintain control and use an appropriate selected mode.

In ROLL, FSS describes wings-level guidance when the bank is 6° or less at activation. Between 6° and 35°, the autopilot holds the existing bank; at or above 35°, it limits the bank to 35°. During takeoff, FSS describes automatic transition to TRACK when IAS exceeds 100 kt and bank has remained at or below 3° for more than 10 seconds. Check the active FMA and flight path. FSS lateral modes ^[37].