Enter distance and/or / altitude into scratchpad using data entry keys.
Line Select Key 3 ..............................................................................PUSH
Push Line Select key 3 and observe distance and/or / altitude are
displayed in Data Line 3.
PLN DES W/V page:
PLN DES W/V page allows loading of wind data at three flight levels.
Winds are used to develop a vertical wind profile for descent.
Note: PLN DES W/V page may be selected after a GWT and TRIP or BOD distance have been entered on PLAN page and BOD GWT and BOD FUEL have been computed.
Winds may be entered in any order of altitude but a wind direction and speed must be specified.
Altitude of a wind may be entered in feet or flight level but will always be displayed to nearest flight level.
Winds are entered in relation to airplane heading. Wind component is then used b the PMS to develop a descent vertical wind model.
PMS maximum wind shear is 20 knots per 1000 feet. If an edit not within this limit is made, the message CHECK WIND PROFILE will be displayed in scratchpad.
To enter data on PLN DES W/V page:
Altitude / Wind Direction / Wind Speed .ENTER INTO SCRATCHPAD Appropriate Line Select Key............................................................PUSH
Enter altitude / wind direction / and wind speed into scratchpad. Push Line Select key 1, 2, or 3 and observe wind data is now displayed in corresponding data line.
(Continued)
Continental
Rev. 12/01/00 #29 Flight Manual
Note: To enter a second or third wind, repeat previous steps using remaining blank data lines and their appropriate Line Select key.
Clearing of a wind from a data line may be accomplished by pushing CLEAR key then pushing appropriate Line Select key.
Winds may be edited at anytime. However, once below an altitude, a wind is no longer used by the PMS.
When a REPLAN is desired:
When edits are made on the PLAN page, the PMS makes adjustments as
required to the current computed profile.
A second procedure, REPLAN, completely clears the current profile
from the PMS and allows for the definition of a new profile.
Note: REPLAN is automatically accomplished at the end of the PMS profile, but can be manually initiated any time a new profile (climb, cruise, descent) is desired.
PLAN key..........................................................................................PUSH
Push PLAN key and observe PLAN page is displayed.
CLEAR Key / LINE SELECT Key 3 ................................. PUSH / PUSH
Push the CLEAR key then Line Select key 3 and observe the message CONFIRM PLAN is displayed in Data Line 3 and Line Select key 3 is illuminated.
Line Select Key 3 ..............................................................................PUSH
Push Line Select key 3 again.
At this point, (1) GWT and FUEL weight are retained and continue to be updated and (2) all other flight plan data previously entered into PMS is cleared, including all of the PLAN CRZ page and the geographic definition of BOD, if previously entered.
BOD distance, ALT and other planning data can now be entered and the new profile will be computed by the PMS.
PMS PLAN (TRIP DATA NOT ENTERED)
Note: When current trip related data is not available to the PMS, only limited operation of the system is possible. This occurs when any of the following conditions exist:
.
The airplane leaves the ground with TRIP distance not entered on the PLAN page.
.
The airplane flies past the bottom of descent (BOD) without subsequent entry of a new BOD distance and altitude.
.
The airplane is in climb past the PMS computed top of descent (TOD).
.
BOD distance and ALT are cleared from PLAN page.
PMS operations under any of these conditions will be limited to a pitch and thrust coupled speed hold mode which will be identified as CLB (NON OPT), CRZ (NON OPT) or DES (NON OPT). No profile computations will be made by the PMS, but maximum / minimum speeds and engine limits will be computed and honored and the airplane will not be allowed to climb or descent through selected altitude.
PLAN Key.........................................................................................PUSH
Push PLAN key and observe PLAN page is displayed.
GWT...............................................................................................ENTER
Enter gross weight into scratchpad.
Line Select Key 1 ..............................................................................PUSH
Push Line Select key 1 to transfer GWT into data line 1.
If only gross weight is entered into the PMS CDU, no profile related data will be displayed. Therefore, PMS will only operate in a coupled speed hold mode, within the constraints of minimum / maximum speeds, engine limits and selected altitude.
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本文链接地址：MD-80 Flight Manual 麦道80飞行手册 2(151)
