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AUTOMATIC FLIGHT CONTROL SYSTEM Description Vol. 2 04.10.63
Oct 05/06
ATS Takeoff Mode Figure 04.10.49
Takeoff
The takeoff thrust limit is selected in the FMS “THRUST LIMIT” page, and confirmed on the EICAS in the form of N1 display.
At aircraft line-up, the pilot presses the TOGA switch and confirms that the N1 TO message is shown in the ATS mode status display (MSD) unit.
The ATS may be engaged for takeoff using either method described:
. Automatic engagement – Advance the throttle levers for takeoff. When both engines reach 75% N1, the ATS engages, the green LEDs illuminate on the ATS control panel,
and the ATS servos advance the throttle levers to the takeoff N1 thrust limit computed by the FMS.
AUTOMATIC FLIGHT CONTROL SYSTEM Description Vol. 2 04.10.64
Oct 05/06
. Manual engagement – Press the ATS engage pushbutton on the ATS control panel. The ATS engages, the green LEDs illuminate on the ATS control panel, and the ATS servos advance the throttle levers to the takeoff N1 thrust limit computed by the FMS.
Confirm that engine power is set to takeoff N1 limit prior to 80 KIAS, which is the speed that the ATS ceases servo commands. The N1 HOLD message replaces the N1 TO message in the MSD, and the green LEDs extinguish.
ATS Takeoff Figure 04.10.50
During strong headwind takeoff, it is possible that takeoff thrust may not be set by the ATS prior to reaching 80 KIAS, and the crew must position the thrust levers, as required, to attain takeoff thrust.
At 329 ft barometric altitude above takeoff elevation, the ATS re-engages the throttle lever servos, the N1 HOLD message is replaced by the N1 TO message, and the green LEDs illuminate on the ATS control panel.
During initial climb, the ATS remains at N1 TO mode, and continues to adjust engine thrust in accordance with the N1 takeoff thrust limit schedule calculated by the FMS.
Climb
The ATS remains in the N1 TO mode unless the following occurs:
.
Autopilot is engaged, causing the ATS to transition to the SPEED mode (except in AFCS FLC mode);
.
Airspeed increases to within 10 KIAS below the AFCS airspeed reference (speed bug), causing the ATS to transition to the SPEED mode (except in AFCS FLC mode or go-around mode); or
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New FMS thrust limit is chosen. Climb (CLB), cruise (CRZ) or N1 target (TGT) thrust limit may be selected.
Selecting climb (CLB) in the FMS “THRUST LIMIT” page results in transition to N1 climb mode, and the N1 CLB message replaces the N1 TO message.
AUTOMATIC FLIGHT CONTROL SYSTEM Description Vol. 2 04.10.65
Oct 05/06
Selecting the desired AFCS vertical mode:
.
AFCS FLC – ATS remains in N1 climb mode, and continues to adjust the throttle levers in accordance with the FMS climb thrust limit.
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本文链接地址：庞巴迪挑战者605公务机机组操作手册 CL605-AUTOMATIC_FLIGHT_CONTROL_SYSTEM(26)
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