Radio Altitude Dial (dial – white, DH pointer – magenta)
.
displayed when the airplane is at or below 1,000 feet AGL

.
DH pointer replaces digital DH display

.  
the circumference of the dial is added to or taken away from to depict
airplane’s radio altitude

.  
display changes color to yellow and flashes momentarily when airplane descends below the decision height

.  
DH alert is reset automatically if airplane climbs 75 feet or more above
the select DH, or after the airplane lands

.  
DH alert is manually reset if the RST switch on the EFIS control panel is pushed

Fast/Slow Display (scale – white, pointer – magenta)
.
pointer moves in response to data from autothrottle

.
displays airspeed error (within 10 knots)

.
functions as a throttle director when thrust is manually controlled.

Flight Instruments, Displays -Electronic Flight Instrument System (EFIS) 737 Operations Manual

True Airspeed (TAS) (white)
Displays ADC true airspeed in knots.
EADI TCAS Display

TCAS RA Pitch Command (red)
.
down advisory

.
displayed during RA condition

.
indicates pitch attitude to be avoided for traffic separation.

Copyright . The Boeing Company. See title page for details.
10.30.10  June 4, 2004

Flight Instruments, Displays -Electronic Flight Instrument System (EFIS)
737 Operations Manual

TCAS RA Pitch Command (red)
.
up advisory

.
displayed during RA condition

.
indicates pitch attitude to be avoided for traffic separation.

EADI Speed Tape

V1 (Decision Speed) (green)
.
displayed after manual entry on the FMC/CDU TAKEOFF REF page

.  
displayed in this location during initial takeoff roll when V1 is beyond the
displayed range.

FMC/MCP Command Speed (magenta)
Displayed in this location when the FMC/MCP command speed is in the displayed range.

Vr (Rotation Speed) (green)
Displayed after manual entry on the FMC/CDU TAKEOFF REF page.

V1 (Decision Speed) (green)
This symbol replaces digital V1 display (upper right corner of the speed tape when the V1 speed is within the displayed range.
Flight Instruments, Displays -Electronic Flight Instrument System (EFIS) 737 Operations Manual

Speed Tape Scale (white)
.
scrolls up or down in response to ADC calibrated airspeed

.
range is 45 to 420 knots.

FMC/MCP Command Speed (magenta)
Displayed in this location when the FMC/MCP command speed is above displayed range.

Minimum Flap Retraction Speed (green)
Displayed on speed tape during takeoff or go–around.

Minimum Maneuver Speed (yellow)
Top of hollow yellow bar indicates minimum maneuver speed. On airplanes operated under CAA rules, the display is inhibited from takeoff until first flap retraction.

Stick Shaker Speed (red and black)
Top of barber pole indicates speed at which stick shaker is activated.
Copyright . The Boeing Company. See title page for details.
10.30.12  June 4, 2004

Flight Instruments, Displays -Electronic Flight Instrument System (EFIS)
737 Operations Manual

Flaps Up Maneuvering Speed (green)
Displayed when flaps are up.

Rolling Digits Display (white)
.
indicates current airspeed

.
position is fixed relative to ADI display.

Airspeed Trend Arrow (green)
Tip of arrow depicts predicted airspeed within the next 10 seconds based on present airspeed and acceleration.

FMC/MCP Command Speed (magenta)
Displayed in this location when the FMC/MCP command speed is below displayed range.

Max Operating Speed (red and black)
Indicates Vmo/Mmo.
Copyright . The Boeing Company. See title page for details.
Flight Instruments, Displays -Electronic Flight Instrument System (EFIS) 737 Operations Manual

High Speed Buffet Limit
Bottom of yellow bar indicates speed that provides .3G maneuver margin to high speed buffet at high altitudes.

Placard Speed (red and black)
Indicates gear extended placard speed or flap extended placard speed for selected flap position, as applicable.

Next Flap Position Placard Speed (yellow)
Bottom of hollow yellow bar indicates the flap extended placard speed for the next normal flap position.

Vref Speed (green)
Indicates the Vref speed for the landing flap configuration as selected on the FMC/CDU APPROACH REF page.

Current Airspeed Reference (green)
　
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