Flight Instruments, Displays -Electronic Flight Instrument System
737 Operations Manual
EHSI Symbology
The following symbols can be displayed, depending on EFIS control panel switch selections. Colors indicate the following:
.
W (white) – present status, range scales
.
G (green) – active or selected mode and/or dynamic conditions
.
M (magenta/pink) – command information, pointers, symbols, fly–to
condition, weather radar turbulence
.
C (cyan/blue) – nonactive or background information
.
A (amber) – cautions, faults, flags
.
R (red) – warnings
.
B (black) – blank area, off condition.
Flight Instruments, Displays -Electronic Flight Instrument System 737 Operations Manual
Heading, Track, and Wind
Symbol Name Applicable Mode(s) Remarks
HDG – Heading HDG – All HDG – Displays heading as
HDG 062 M TRK 062 M orientation (G), current heading (W), heading reference (G), and heading pointer (W) On some airplanes, TRK is displayed in MAP the display orientation, current heading, M or TRU as the heading reference, and points to the heading on the compass rose.
TRK – Track orientation (G), current track (W), and track reference (G) CTR MAP FULL NAV EXP NAV PLAN, TRK – Displays track as the orientation, the current track, and M or TRU as the reference, and points to the heading on the compass rose.
Selected heading bug All Displays the MCP–selected
(M) and reference line heading.
(M) A dashed line (M) extends from the marker to the airplane symbol (except for PLAN mode.
40 4080 EXP NAV EXP VOR/ ILS MAP CTR MAP Track line and range scale (W) MAP CTR MAP EXP NAV EXP VOR/ ILS Displays present ground track based on airplane heading and wind. The displayed range numeric values are one-half and one-fourth the actual selected range respectively. With heading-up orientation, the track line will be rotated left or right at an angle equal to the drift angle.
Drift Angle Pointer FULL NAV Displays present ground
(W) FULL VOR/ ILS track. Replaces track line when a full rose mode is selected.
Copyright . The Boeing Company. See title page for details.
10.30.44 December 1, 2000
Flight Instruments, Displays -Electronic Flight Instrument System
737 Operations Manual
Symbol Name Applicable Mode(s) Remarks
M OR Heading reference ALL Indicates heading/track is
TRU (G), box (W) in TRU, box (A) if TRU displayed in descent referenced to magnetic north or true north. On transition from TRU to M, a highlight box is displayed around M for 10 seconds. When TRU is the reference, the highlight box is displayed full time (white).
15 12 Expanded compass (W) MAP EXP NAV EXP VOR/ ILS PLAN On some airplanes: CTR MAP Displays 70 degrees of compass rose. On some airplanes, an arc of approximately 120 degrees is displayed when CTR MAP is selected.
Full compass rose (W) FULL NAV The compass rose rotates
Fixed reference marks FULL VOR/ through 360 degrees as a
(W) ILS function of airplane heading. Fixed reference marks are evenly spaced at 45 degree intervals.
Center Map full compass rose(W) As installed. CTR MAP The compass rose rotates through 360 degrees as a function of airplane heading.
Copyright . The Boeing Company. See title page for details.
June 4, 2004 10.30.45
Flight Instruments, Displays -Electronic Flight Instrument System 737 Operations Manual
Symbol Name Applicable Mode(s) Remarks
Current heading pointer (W) MAP CTR MAP EXP NAV FULL NAV PLAN Points to current heading on the compass rose.
Waypoint bearing pointer (M) EXP NAV FULL NAV Displays relative bearing to active waypoint
350 /15 Wind direction/ speed and wind arrow (W) All except PLAN Indicates wind speed and direction, with respect to display orientation and heading reference. Displayed if wind magnitude is greater than 6 knots and blanked if wind magnitude becomes less than 4 knots.
Copyright . The Boeing Company. See title page for details.
10.30.46 June 4, 2004
Flight Instruments, Displays -Electronic Flight Instrument System
737 Operations Manual
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