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庞巴迪CRJ200公务机机组操作手册 Bombardier CRJ-自动飞行控制系统(6)

时间:2011-11-17 10:49来源:蓝天飞行翻译 作者:公务机 点击:
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(2) LateralTake-OffMode
Lateral take-off mode generates a wings level command while on the ground. After take-off, it generates a heading hold command, with a 5-degree bank limit, using the heading which existed at take-off. Selecting a lateral take-off mode turns on both flight directors, disengages the autopilot and clears all other lateral modes.
Lateral take-off mode is selected by pushing one of the thrust lever-mounted TOGA switches while on the ground. Lateral take-off mode is cleared by the selection of FD SYNC or another lateral mode.
Lateral take-off mode is annunciated with a green TO message in the lateral capturefield on theprimary flight display.
(3) HeadingSelectMode
Heading select mode generates commands to capture and maintain the selected digital heading readout and heading bug on the PFD. The selected heading can be changed by rotating the HDG knob (up to 360 degrees) on the flight control panel (FCP). Pushing the HDG knob will set the selected heading to the current heading.
Heading select mode is selected by pushing the HDG switch on the FCP. Heading select mode is cleared by pushing HDG switch or by selecting another lateral mode.
Heading select mode is annunciated with a green HDG message in the lateral capture field.
(4) Navigation Mode
Navigation mode generates commands to capture and track a selected navigation source displayed on the primary flight display. Navigation mode is armed when selected, but cannot capture if the flight control computer is not receiving valid navigation data.
The capture point is a function of closure rate, with the capture point moving away from the radial/beam for high closure rates. Capture will always occur if VOR deviation is less than 5% of full scale (0.1 dot), or localizer deviation is less than 30% (0.6 dot). Navigation capture clears the heading selected. A localizer capture clears half bank and turbulence modes.
Dead reckoning is provided during VOR station passage. When DME data is available, dead reckoning region is approximately where the horizontal distance to the station is less than the altitude to the station. Without DME data, dead reckoning is based on a high rate of VOR deviation.
Flight Crew Operating Manual  MASTER 
CSP A-
013 


 AUTOMATIC FLIGHT CONTROL SYSTEM Flight Control and Guidance  Vol. 1  03-
20-
10 
REV 56, Jan 31/03 

TheCRS 1knobis usedto set thecoursepointer on thepilot's PFD. TheCRS 2 knob is used to set the course pointer on the copilot's PFD. Pushing the button in the course knob will select the course required to fly directly to a station.
Navigation mode is selected by pushing the NAV switch on the FCP. Navigation mode is cleared by pushing the NAV switch again, by selecting another lateral mode or by changing the source of the on-side navigation signal.
Navigation mode arming is annunciated with two messages on the primary flight display, a green HDG message in the lateral capture field, and a white navigation source identifier (VOR1/2, LOC1/2 or FMS1/2) in the lateral arm field.
 
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