787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Automatic Flight -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
4.10.8 D615Z003-TBC
• with the VNAV PTH pitch mode engaged, the autothrottle operates in the
following modes:
• for climb or cruise – operates in the speed (SPD) mode
• for descent – operates in the IDLE, HOLD, or speed (SPD) mode
• VNAV pitch guidance is available with one engine inoperative
VNAV is disengaged:
• by engaging TO/GA, FLCH SPD, V/S, FPA, ALT, G/S or G/P pitch mode
• if there is a dual FMC failure
Note: VNAV functionality still available. (Refer to Vertical Navigation
(VNAV) in Chapter 11, Section 31, for additional information.)
• if all three FMCs fail
VNAV is disarmed by:
• pushing the VNAV switch a second time, or
•arming APP
Illuminated (white) – the VNAV mode is armed or engaged.
Push –
• FLCH SPD is displayed on the PFD and HUD pitch flight mode
annunciator as the pitch mode
• if the IAS/MACH window is blank, the IAS/MACH window opens to the
FMC target speed, if valid. If not valid, the IAS/MACH window opens to
the current speed
• when changing from TO/GA to FLCH:
• if the current speed is greater than the IAS/MACH window speed, the
IAS/MACH window speed changes to the current speed
• if the current speed is less than the IAS/MACH window speed, the
IAS/MACH window speed does not change
• the autothrottle activates:
• for climb – activates in THR mode with thrust targeting to reach
selected altitude in two minutes; the thrust limit is CLB thrust
• for descent – activates in THR mode with thrust targeting to reach
selected altitude in two minutes, followed by HOLD if the thrust levers
reach idle
Illuminated (white) – the flight level change mode is engaged.
4
VNAV Light
5
Flight Level Change (FLCH) Switch
6
Flight Level Change Light
June 16, 2008
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