offset leg in the flight plan.
END WAYPOINT
The waypoint at which the offset is to end may be entered (up to 6 characters). Offset will propagate through flight plan until end waypoint is encountered. Deletion of end waypoint (or no entry) will result in offset propagating until an
invalid offset leg is encountered.
Progress Page
Modified (MOD)
Displays MOD when the route is being modified.
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Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual
Line data is valid for the modified route.
VNAV Modifications
Three primary cruise modes are available – economy (ECON) cruise, long range cruise (LRC), and cruise with a manually selected speed.
YA613 - YC413, YK101 - YK104 Access to the various cruise pages is obtained by pushing the CRZ mode select key.
YD651 - YD655 Access to the various cruise pages is obtained by pushing the VNAV function key while in cruise. Access from other performance pages is via the NEXT/PREV PAGE key.
Cruise Page
YA613 - YC413, YK101 - YK104
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Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual
YD651 - YD655
Cruise Altitude (CRZ ALT)
Displays present cruise altitude in flight level or feet x 100. Value may be entered
via the keyboard or propagated from the PERF INIT, CLB, CRZ CLB, or CRZ
DES pages.
During active cruise, entry of a new value propagates to all other pages which
display cruise altitude and causes the MOD CRZ CLB or MOD CRZ DES page
to appear.
YD651 - YD655
Value may be increased using altitude intervention.
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Flight Management, Navigation -FMC Cruise 737 Flight Crew Operations Manual
Target Speed (TGT SPD)
The computed target speed displays one of the following:
.
computed or manually selected value for target airspeed or Mach
YD651 - YD655
.
XXX/MCP when speed intervention is active and the plan is active
.
deletion or modification of XXX/MCP is not allowed
.
XXX/HOLD when decelerating to hold speed prior to the hold entry fix
.
deletion or modification of hold speed is not allowed. The value is reverse highlighted on an active cruise page.
Turbulence N1 (TURB N1)
Displays proper N1 for turbulence penetration.
Value is for reference only. It is not commanded to the autothrottle.
Fuel at Destination (FUEL AT XXXX)
Displays the predicted fuel remaining at destination.
The value assumes continued flight per the displayed cruise and planned descent modes along the active route. If a step to altitude is entered on line 1R, the computation assumes that the step
will occur at the step point. After passing the step climb point, the predicted fuel weight is based on an immediate step climb from current position.
Cruise Page Prompts
Allow line selection of the various cruise pages.
The RTA prompt is replaced with ERASE when a MOD page is displayed.
Optimum/Maximum Altitude (OPT/MAX)
Displays the computed optimum altitude for the displayed cruise mode. The value
is not constrained by minimum cruise time criteria (as is the TRIP ALT on the
PERF INIT page).
Also displays the maximum possible altitude based on the selected target speed
and the specified maneuver margin.
Values are advisory only. They are provided for crew reference.
Step to Altitude Line (STEP)
This line may be used to enter a possible step climb or descent altitude for crew evaluation.
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Flight Management, Navigation -FMC Cruise
737 Flight Crew Operations Manual
The line will be blank when within 100 nm of top of descent or when RTA mode is active.
Top of Descent (TO T/D) Line
Displays time of arrival at and distance to top of descent point.
The data is always displayed when the distance is less than 100 nm. If the distance is more than 100 nm, the data will be displayed only if a step to altitude has not been entered.
ACTUAL WIND
Displays computed or manually entered true wind for present altitude.
A manual entry has priority. The data line title then changes to EST WIND
(estimated wind).
The displayed value is used as the assumed true wind at the step to altitude for
making wind/altitude trade computations.
RTA Cruise
If an RTA waypoint has been specified, the cruise page will reflect the RTA data.
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