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NAVIGATION SYSTEMS
Description
Vol. 2 17−10−74
REV 76, Jul 17/09
CL−604 Operating Manual
PSP 604−6
GLOBAL POSITIONING SYSTEM (GPS) (CONT'D)
For a complete listing of GPS and RAIM messages, see the “Collins FMS-6000 for the
Challenger 604” Pilot’s Guide.
FMS CDU RAIM Message
Figure 17−10−65
NAVIGATION SYSTEMS
Description
Vol. 2 17−10−75
REV 76, Jul 17/09
CL−604 Operating Manual
PSP 604−6
GLOBAL POSITIONING SYSTEM (GPS) (CONT'D)
Controls and Indicators
FMS-GPS Control Page
The GPS control page allows the pilot to monitor the FMS aircraft position in relation to the
GPS. The position differential (POS DIFF) is shown in direction and magnitude from the FMS
position.
To alternately enable or disable use of a specific GPS sensor, push the left side line-select key
of that sensor. Enabled sensors show in large green font, and disabled sensors show in small
white font.
The DEST and ETA entries are those of the active flight plan. You can manually enter changes
to see if RAIM is available for other destinations and/or arrival times.
Satellite Deselect
Individual satellites can be deselected from use by entering the identifier for the satellite in the
FMS. This function would be used if the satellite is NOTAMed under test. When deselected, the
FMS ignores the data from the satellite. Deselected satellites are not included in the predicted
RAIM computations.
FMS GPS Control Page
Figure 17−10−66
NAVIGATION SYSTEMS
Description
Vol. 2 17−10−76
REV 76, Jul 17/09
CL−604 Operating Manual
PSP 604−6
FLIGHT MANAGEMENT SYSTEM (FMS)
Description
A dual flight management system (FMS) provides integrated cockpit and flight management
functions. Each flight management system (FMS 1 and FMS 2) is composed of a control display
unit (CDU) in the cockpit, and a flight management computer (FMC) in the underfloor avionics
equipment bay. A single data base unit (DBU) allows data to be uploaded or downloaded to all of
the FMCs. A third flight management system (FMS 3) may be installed as a customer option.
The FMS cockpit management functions include:
• Navigation sensor control
• Radio tuning
• Multifunction display (MFD) control menus
• Navigation database management
• Control and management of the data loader
• Management of the data interface with external systems (AFIS)
Flight management functions include:
• Continuous calculation of the integrated navigation solution
• Flight plan inputs by the crew
• Lateral flight plan point-to-point navigation
• Vertical navigation
• Performance calculation
• Lateral/vertical steering commands to the flight control system
The third FMS, if installed, is defined as a “hot spare”, and is fully functional when selected.
For a comprehensive description of FMS functions and operation, refer to the “Collins FMS-6000
for the Challenger 604” Pilot’s Guide.
NAVIGATION SYSTEMS
Description
Vol. 2 17−10−77
REV 76, Jul 17/09
CL−604 Operating Manual
PSP 604−6
FLIGHT MANAGEMENT SYSTEM (FMS) (CONT'D)
Components and Operation
FMS Control Display Units (CDUs)
The FMS CDU is the cockpit interface of the flight management system. It allows the flight crew
to input, modify, and execute flight plans, as well as calculate aircraft performance. It also acts
as a radio tuning interface through a dedicated TUNE page, and is the primary means of control
for most navigation sensors. The CDU controls certain information displays on the MFDs, and
advises the flight crew of FMS system status through a variety of message formats.
Power Supplies
• The No. 1 (left) CDU is powered by DC bus 1
• The No. 2 (right) CDU is powered by DC bus 2
• The No. 3 CDU is powered by the DC essential bus
In the event of loss of normal electrical power, the No. 1 CDU will be powered by the BATT
BUS when the ADG deploys.
Scratchpad and Line Select Keys
The FMS CDU is arranged so that all flight crew inputs are conducted through a “scratchpad”,
which allows easy data input and retrieval. An alphanumeric keypad permits entry of all
relevant data to the scratchpad, and line-select keys are used to insert the data in the
appropriate area of the display page. Most information contained on the display page can
similarly be “line-selected”, and is then transferred to the scratchpad for reference or
　
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