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FMC -> Flight Management Computer
• DATA : Obtains information and status about the FMS, Navigation database and
attached sensors. It also has the “SERVICES” page which is used to simulate ground
crew behavior such as setting a GPU (Ground Power Unit), or removing/installing
landing gear locking pins.
• NAV : Displays navigation data pages.
• VNAV : Vertical Navigation page allows a pilot to define a desired vertical flight
profile along the flight plan route. It also computes deviation from that profile.
• DTO : The “Direct To” key allows the pilot to alter his flight plan.
• FUEL : displays fuel and weight pages.
• FPL : The “Flight Plan” pages access waypoints, stored arrivals, departures, SIDs,
and STARs.
• PERF : The “Flight Performance” page displays in flight performance information
(read-only).
• TUNE : Selects and stores preselected frequencies for each radio.
• LIST : Displays a list of options during data entry
• MENU : Displays a list of alternate formats or options for the FUEL, FPL, NAV,
VNAV or TUNE pages when selected. When the MENU key is active, the letter “M”
will appear in a box on the title line of the selected page.
• PREV/NEXT: Cycles through previous and next page of selected FMC page
• BACK: Backspace (deletes text)
• MSG: Displays messages
• ON/OFF DIM: Turns ON or OFF Flight Management Computer
• ENTER: Enters data
LSK: Line Select Keys
PART 3
–
FLIGHT PLANNING
MCDU/FMC IN A NUTSHELL
Sounds complicated? Don’t worry, it’s much simpler than it looks. We’ll see
how it works in the tutorial section.