737 Flight Crew Operations Manual
Flight Instruments, Displays -
Head-Up Display System,
Symbology
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10.42.10 D6-27370-866-EGP
SYMBOL NAME MODE REMARKS
Digital ground
speed
All Displays digital ground speed.
Digital mach PRI in
flight
Displays mach speed below
airspeed scale when mach
speed is above .400. Removed
when below .380.
Selected mach All Displays selected mach speed
above airspeed scale
(PFD/ND format only).
Digital
barometric
altitude
AIII
approach,
AIII
rollout,
IMC,
VMC
Displays barometric altitude
relative to the flight path
symbol if it is displayed, and
relative to the airplane
reference symbol if flight path
is not displayed.
Digital vertical
speed
PRI in
flight,
AIII
approach,
IMC,
VMC
In PRI mode, displayed in the
lower right corner of the
display. In all other modes,
displayed to the right of the
flight path symbol.
Value displayed in 50
feet/minute increments.
DME distance PRI in
flight,
AIII
approach,
IMC,
VMC
Indicates DME distance to the
reference navaid.
March 27, 2014