MAX ANGLE indicates the speed is based on the maximum altitude over the
shortest horizontal distance.

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Flight Management, Navigation -FMC Takeoff and Climb

737 Flight Crew Operations Manual
Fixed climb speeds display XXXKT for a fixed CAS climb speed or M.XXX for a fixed Mach climb speed profile. Reasons for fixed speeds are:
.
takeoff/climb acceleration segment constraints

.
waypoint speed constraints

.
an altitude constraint associated with a speed constraint

.
a speed restriction

.
a crew entered speed.

Displays ACT when the climb phase is active.

Cruise Altitude (CRZ ALT)
YA613 - YC413, YK101 - YK104 The cruise altitude from the PERF INIT page is displayed. A new altitude can be manually entered.
YD651 - YD655 The cruise altitude from the PERF INIT page is displayed. The altitude can be changed by two methods:
.  
a new altitude can be manually entered from the CDU at any time.
Changing the altitude in this manner creates a modification.

.  
setting the MCP altitude above the current FMC CRZ altitude, provided
no intermediate altitude constraints exist between the current airplane
altitude and the MCP target altitude. Selecting the new altitude on the
MCP and pushing the altitude intervention button places the new altitude
in the CRZ ALT data line. Entering a new cruise altitude in this manner
does not create a modification.

Target Speed (TGT SPD)
Displays computed values or manually entered values for the selected mode.

YD651 - YD655
Displays XXX/MCP when speed intervention is active and plan is active.

Airspeed and/or Mach may be entered using the keyboard. Title will display
manually entered value.

The active controlling speed is highlighted in reverse video.

Speed Restriction (SPD REST)
The speed restriction line displays the speed restriction/altitude from one of the following sources:
.  
the navigation database value for the origin airport
(dashes displayed when no speed restriction exists for the listed airport)

.  
waypoint related restriction from the RTE LEGS page if restriction limits
climb speed

Copyright . The Boeing Company. See title page for details.
11.41.6   June 1, 2005

Flight Management, Navigation -FMC Takeoff and Climb 737 Flight Crew Operations Manual
.  
a default speed of 250 knots and 10,000 feet for airports not listed in the
navigation database (example 250/10000)

.  
displays XXX/FLAPS if the active speed restriction is lower than the
minimum speed for the selected flap setting

.
displays XXX/HOLD when decelerating to hold speed prior to hold entry

fix. Dashes displayed if no active speed restriction exists.
Manual crew entries or deletions may be made. HOLD or FLAPS speed may not be deleted or modified.
Note:  If the FMC default speed restriction is overwritten, it will be deleted and not return after the overwrite condition passes (e.g. the default of 250/10000 is overwritten to 230/3000, after 3000 feet is passed there will be no speed restriction and VNAV will accelerate to the unrestricted climb speed).
The active controlling speed is highlighted in reverse video.

Climb Page Prompts
Push – selects various CLB pages.
Following line selection, the prompt for that page blanks.

AT XXXXX
The waypoint constraint line displays the next waypoint having an altitude constraint. Constraints are entered on the RTE LEGS page or by departure procedure selection. The constraints can be deleted on this page or the RTE LEGS page. The waypoint may be a HOLD AT point.
Display is blank if no restriction exists.

TO XXXXXX
Displays ETA and distance to go to waypoint on AT XXXXXX line. If no waypoint constraint exists, values are for CRZ ALT.

Error (ERR XXXXX)
Displays predicted altitude undershoot for the waypoint on AT XXXXXX line.

During VNAV operation, the FMC commands a level off if an overshoot is
predicted.
Display is blank, including the label, if no error exists.

Copyright . The Boeing Company. See title page for details.
Flight Management, Navigation -FMC Takeoff and Climb 737 Flight Crew Operations Manual

Reduced Climb N1 (CLB – X N1) YA721, YA722
Displays reduced climb N1 value. Blank when reduced climb not selected.

Climb N1 (CLB N1, CLB – X N1) YA613 - YA687, YA801 - YK104
Displays the computed climb N1 value.

Engine Out (ENG OUT)
Push – displays RT ENG OUT and LT ENG OUT prompts. See ENG OUT CLB page description.
　
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