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A330/A340<br />
FLIGHT CREW<br />
OPERATING MANUAL<br />
Applicable to: ALL<br />
<strong>AIRCRAFT</strong> <strong>SYSTEMS</strong><br />
AUTO FLIGHT - FLIGHT GUIDANCE<br />
AP/FD COMMON MODES - TAKEOFF<br />
GENERAL<br />
Takeoff mode combines the SRS (Speed Reference System) vertical mode with the RWY lateral<br />
mode. Both are simultaneously engaged, but may be disengaged separately.<br />
Takeoff mode is available:<br />
‐ During the takeoff run and initial climb for FD bars guidance<br />
‐ 5 s after lift-off for AP use.<br />
Applicable to: ALL<br />
GENERAL<br />
SRS (SPEED REFERENCE SYSTEM)<br />
SRS mode controls pitch to steer the aircraft along a path in the vertical plan at a speed defined by<br />
the SRS guidance law.<br />
Applicable to: ALL<br />
ENGAGEMENT CONDITIONS<br />
The SRS mode automatically engages when the thrust levers are set to the TOGA or FLX/MCT<br />
detent, or a derated level � , providing:<br />
‐ V2 has been inserted in the MCDU PERF TAKEOFF page. If V2 has not been inserted, V/S<br />
mode engages 5 s after lift-off on the current V/S value<br />
‐ The slats are extended<br />
‐ The aircraft has been on ground for at least 30 s.<br />
Applicable to: MSN 0014-0043<br />
DISENGAGEMENT CONDITIONS<br />
The SRS mode disengages:<br />
‐ Automatically, at the acceleration altitude (ACC ALT), or if ALT* or ALT CST* mode engages<br />
(above 400 ft RA)<br />
‐ If the flight crew engages another vertical mode.<br />
Note: In Engine Out conditions, the SRS mode does not automatically disengage at EO ACC<br />
ALT. Refer to DSC-22_20-60-40 General.<br />
RJA A330/A340 FLEET DSC-22_30-80-20 P 1/4<br />
FCOM A to B → 30 MAY 12