Takeoff and Go-Around Function (TO/GA)
Go–Around (GA) mode is engaged by pushing either TO/GA switch. An A/P
go–around requires dual A/P operation and is armed when FLARE armed is
annunciated. If both A/Ps are not operating, a manual F/D go–around is available.
With the A/T Arm switch at ARM, the A/T go–around mode is armed:
A/P Go–Around
The A/P GA mode requires dual A/P operation and is available after FLARE
armed is annunciated and prior to the A/P sensing touchdown.
With the first push of either TO/GA switch:
Go–Around (GA) mode is engaged by pushing either TO/GA switch. An A/P
go–around requires dual A/P operation and is armed when FLARE armed is
annunciated. If both A/Ps are not operating, a manual F/D go–around is available.
With the A/T Arm switch at ARM, the A/T go–around mode is armed:
- When descending below 2000 feet RA.
- When above 2000 feet RA with flaps not up or G/S captured.
- With or without the AFDS engaged.
A/P Go–Around
The A/P GA mode requires dual A/P operation and is available after FLARE
armed is annunciated and prior to the A/P sensing touchdown.
With the first push of either TO/GA switch:
- A/T (if armed) engages in GA and the A/T Engaged Mode annunciation on the FMA
indicates GA.
- Thrust advances toward the reduced go–around N1 to produce 1000 to 2000 fpm rate
of climb.
- Pitch mode engages in TO/GA and the Pitch Engaged Mode annunciation on the FMA
indicates TO/GA.
- F/D pitch commands 15 degrees nose up until reaching programmed rate of climb.
F/D pitch then commands target airspeed for each flap setting based on maximum
takeoff weight calculations.
- F/D roll commands hold current ground track. The Roll Engaged Mode annunciation on
the FMA is blank.
- The IAS/Mach display blanks.
- The command airspeed cursor automatically moves to a target airspeed for the
existing flap position based on maximum takeoff weight calculations.
