MD-11 Flight Crew Operations Manual
k
FMS -
Controls and Displays
FMS.30.81
DESCENT and SEC DESCENT FORECAST Pages
The DESCENT FORECAST page is accessed by LSK 5R on the DESCENT perf
mode page and enables the flight crew to enter the descent wind and temperature,
for the active flight plan. The SEC DESCENT FORECAST page is accessed by
LSK 2R on the SEC PROGRESS page and allows the flight crew to enter the same
type of data for the secondary flight plan.
A maximum of three different altitude/wind combinations may be entered in lines
2L, 3L and 4L. The FMS will automatically arrange them in descending order
from top to bottom. Entries of altitude only, or altitude and wind are acceptable
and displayed in large font. The wind bearing and magnitude may only be entered
without the altitude when the altitude already exists. Each altitude entry may be
entered as flight levels or as pressure altitudes.
Line 5L automatically displays the destination in large font, only allowing the
winds to be entered.
Pushing 1R selects anti-ice for descent path computation. Turning the anti-ice on
does not automatically select the FMS anti-ice computation.
The temperature at the destination can be entered in 5R. This field is displayed in
large font and may be cleared back to brackets.
NOTES: Altitudes should be entered as a FL above the transition level.
If the destination is changed to other than the destination airport, all
previous wind entries on this page are deleted.
The Insert prompt is displayed in 6L whenever an altitude/wind entry or edit is
performed. An asterisk precedes the inset prompt for the active DESCENT
FORECAST page, but not for the SEC DESCENT FORECAST page.
A return to PERF Mode and SEC PROGRESS page prompts are provided on the
active and secondary DESCENT FORECAST pages, respectively, and both the
DESCENT FORECAST and SEC DESCENT FORECAST pages may be exited
by mode key selection.
1L
2L
3L
4L
5L
6L
1R
2R
3R
4R
5R
6R
LB1-3-0107
October 02, 2006
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