Push Line Select key 2 and observe DES (V/S) page is displayed with SEL and V/S alternately flashing in Data Line 2. Push Line Select key 2 again to COMMAND mode.
Note: At entry to mode, PMS will hold current IAS and a vertical speed of 1000 feet per minute. EPR display in line 1 is thrust command required to hold IAS and V/S as displayed.
Either IAS or V/S can be edited.
(Continued)
Continental
Rev. 12/01/00 #29 Flight Manual
Any IAS – Vertical speed combination can be edited, provided drag is not required, to maintain that combination. IAS edit must be within VMIN / VMAX limits. V/S edit must be within –200 to –6000 feet per minute or a CHECK ENTRY message will be displayed. If the V/S edit is greater than the maximum V/S obtainable with idle thrust and no drag at descent speed, a MAX RATE XXX message will be displayed.
Note: When both quantities are enclosed in brackets, editing CLEAR into Data Line 1 will allow IAS to vary and hold displayed V/S at idle thrust. Or, editing CLEAR into line 2 will allow V/S to vary and hold displayed IAS at idle thrust.
Intercept of DES OPT or DES (NON OPT) Profile from DES (V/S):
In DES (V/S), when within 6 NM of the armed descent profile, the page for the armed mode is auto selected with a SELECT DES message displayed in the scratchpad.
Line Select Key 1 ..............................................................................PUSH
Push Line Select key 1 to disengage DES (V/S) and begin descent to BOD.
PERF mode at BOD:
When the airplane is either at BOD altitude and beyond BOD or below BOD altitude, the PMS reverts to a (NON OPT) mode and trip data is deleted. The PLAN page will be automatically selected with ENTER PLAN in the scratchpad to allow data to be entered for a new profile.
Descent Altitude / Distance Inquiry:
The altitude / distance inquiry procedure is valid only from present position on the profile to the end of defined profile. Edit of an altitude above current altitude will result in a CHECK ENTRY message; edit of an altitude or distance beyond the end of profile will be accepted in line 3, but the remainder of the parameter will be dashed.
Note: This procedure will allow entry of an altitude or distance in Data Line 3 of any DESCENT page except when trip data is not loaded, thus creating a new vertical event called ALT*, with its corresponding altitude / distance / time data.
If an altitude / distance inquiry is desired:
Note: A DESCENT page must be displayed in order to make a altitude / distance inquiry. If not on a DESCENT page push the DES key and observe that the ENGAGED mode is displayed.
(Continued)
Altitude Inquiry
Altitude Desired .......................................ENTER INTO SCRATCHPAD
Enter desired altitude into scratchpad using the data entry keys.
Line Select Key 3 ..............................................................................PUSH
Push Line Select key 3 and observe data is now displayed in Data Line 3.
Note: The distance and time in Data Line 3 will now decrement until desired altitude is reached. Data Line 3 will change to display next vertical event.
Distance Inquiry
Distance Desired ......................................ENTER INTO SCRATCHPAD
Enter desired altitude into scratchpad using the data entry keys.
Line Select Key 3 ..............................................................................PUSH
Push Line Select key 3 and observe data is now displayed in Data Line 3.
Note: The altitude and time now correspond to the desired distance. Distance and time also decrement for this edit case. Altitude will vary slightly but will always be that projected to be reached in the displayed distance and time.
Distance inquires are limited to 999 NM.
PMS DESCENT (TRIP DATA NOT ENTERED)
DES (NON OPT) mode, without profile related data, is the only mode available during descent.
Note: Speed editing is the only operation that can be performed on this page.
To initiate a speed change:
Desired Speed...........................................ENTER INTO SCRATCHPAD
Enter desired speed into scratchpad, using data entry keys.
Line Select Key 1 ..............................................................................PUSH
Push Line Select key 1 and observe desired SPD is displayed in Data Line 1 with SPD and SEL alternately flashing and Line Select key 1 is illuminated. Push Line Select key 1 again to command new speed.
Continental
Rev. 12/01/00 #29 Flight Manual
PMS CROSS-POINT (X-PT*)
PMS cross-point (X-PT*) procedure allows entry of an altitude / distance X-PT* event in Data Line 3 of any CRZ or DES page when POA is active.
Note: A maximum of two cross-points maybe defined at any one time. After a cross-point has been used by PMS, it may be replaced by another.
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：MD-80 Flight Manual 麥道80飛行手冊 2(157)
