Multi-Function Display (Mfd) - BOMBARDIER LEARJET 40 Pilot's Manual

Pilot's Manual
With weather radar selected for display, the MFD rotary knob will have
no function. The EICAS bezel controller provides dedicated buttons for
the displayed EICAS menu. These buttons toggle the selection of the
EICAS system page displays. The EICAS rotary knob allows for scroll-
ing of the CAS messages on the EICAS display.

MULTI-FUNCTION DISPLAY (MFD)

The MFD (normally DU #3) provides the flight crew with a means of
displaying a variety of information. In its normal mode it can serve as
a full time weather radar display superimposed on a 120° compass arc.
There are two basic formats available on the MFD, a partial arc (Map)
display, and a plan mode (North up). Like the PFD, the MFD may have
flight plans composed of up to ten connected waypoints imposed on a
compass card. True airspeed (TAS) provided from the ADC and ground
speed (GSPD) provided from the FMS, are displayed on the MFD. Oth-
er information displayed full time include: FMS source, "TO" way-
point, distance to "TO" waypoint, time-to-go to "TO" waypoint, wind
speed and direction, Static Air Temperature (SAT), and weather radar
(WX) modes.
The MFD also provides a second source for access to EICAS systems
pages as well as providing joystick functions. The MFD (DU #3) may
serve as a backup for any other DU through pilot initiated reversionary
modes.
Other information available on the MFD includes:
• TCAS mode (optional) — Controls the display of TCAS on the
map presentation.
• MFD MENU — Activation of this key will enable the MFD SUB-
MENU to appear.
• CHECKLIST PAGE — This key provides entry into the normal
checklist procedure index page.
• SYSTEM PAGE — Selection of this key will access the systems
sub-menu pages which are duplicates of the EICAS system
pages.
28-vdc is provided from the right essential avionics bus by a 15-amp
circuit breaker DU #3, located on the copilot's circuit breaker panel (IN-
STRUMENT/INDICATIONS group).
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PM-132A