First Officer Outboard Display
YC153, YC154
Copyright . The Boeing Company. See title page for details.
10.11.8 June 1, 2003
Flight Instruments, Displays -PFD/ND – Displays
YA613 - YA809, YC411 - YK104
Flight Mode Annunciator
Refer to Chapter 4, Automatic Flight
2 Airspeed/Mach Indications
3 Attitude Indications
4 Autopilot, Flight Director System Status
5 Altitude Indications
6 Vertical Speed Indications
7 Heading/Track Indications
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Flight Instruments, Displays -PFD/ND – Displays 737 Flight Crew Operations Manual
Primary Flight Display (PFD)– PFD Airspeed Indications
PFD Airspeed Indications – General
The PFD airspeed indication displays air data inertial reference system (ADIRS) airspeed and other airspeed related information.
YA613 - YC413, YK101 - YK104
Copyright . The Boeing Company. See title page for details.
10.11.10 June 1, 2005
Flight Instruments, Displays -PFD/ND – Displays 737 Flight Crew Operations Manual
YD651 - YD655
Selected Speed (magenta)
Displays target airspeed:
.
indicates the airspeed manually selected in the IAS/MACH window
.
indicates the FMC computed airspeed when the IAS/MACH window is
blank.
YA721, YA722
Note: When operating with VNAV engaged at or above the FMC computed maximum altitude, the Selected Speed may change from Mach to CAS. The active FMC VNAV page shows the commanded Mach.
Speed Trend Vector (green)
Tip of arrow indicates predicted airspeed in the next 10 seconds based on the current airspeed and acceleration.
Current Airspeed (white)
Indicates current calibrated airspeed in knots.
When current airspeed decreases into the minimum maneuver speed amber bar:
Copyright . The Boeing Company. See title page for details.
Flight Instruments, Displays -PFD/ND – Displays 737 Flight Crew Operations Manual
.
airspeed readout box turns amber and flashes for 10 seconds
.
box returns to white when airspeed is above minimum maneuver speed.
Maximum Speed (red and black)
Bottom of the bar indicates the maximum speed as limited by the lowest of the following:
.
Vmo/Mmo
.
landing gear placard speed
.
flap placard speed.
Maximum Maneuvering Speed (amber)
Bottom of the bar indicates the airspeed that provides a 0.3 g maneuver margin to high speed buffet. May be displayed at high altitude with flaps up, at relatively high gross weights.
Speed Bug (magenta)
Points to the airspeed:
.
manually selected in the IAS/MACH window
.
indicates the FMC computed airspeed when the IAS/MACH window is
blank. When the selected speed is off scale, the bug is parked at the top or bottom of the tape, with only one half bug visible.
Current Mach (white)
YA721 - YA809, YC411, YC413, YK101 - YK104
Indicates current Mach number:
.
displays when airspeed is 0.40 Mach and above
.
blanks when airspeed decreases below 0.40 Mach.
Current Mach/Groundspeed (white) YA613 - YA687, YC153, YC154, YD651 - YD655
Indicates current Mach or groundspeed:
.
displays Mach when airspeed is 0.40 Mach and above
.
displays groundspeed when airspeed decreases below 0.40 Mach
.
when transitioning from Mach to groundspeed or from groundspeed to
Mach, a white box shows around the numeric value for 10 seconds.
Copyright . The Boeing Company. See title page for details.
10.11.12 June 1, 2005
Flight Instruments, Displays -PFD/ND – Displays
VNAV Speed Band (magenta)
Indicates the FMC target airspeed during VNAV PTH descents. The bottom of the bar indicates the autothrottle wake-up speed. The top of the bar indicates the speed at which VNAV will change VNAV PTH to VNAV SPD.
PFD Airspeed Indications – Takeoff and Approach
YD651 - YD655
Copyright . The Boeing Company. See title page for details.
Flight Instruments, Displays -PFD/ND – Displays 737 Flight Crew Operations Manual
Bug 5 (white)
Displayed if speed reference selector on the engine display control panel is in the bug 5 position or SET position and a value greater than 60 knots has been selected. Not available if the speed reference selector is in the AUTO position.
Flaps Maneuvering Speeds (green)
Indicates flap maneuvering speed for the displayed flap position:
.
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