Three basic cruise modes are CRZ OPT, CRZ NON OPT, and CRZ HOLD / ENDUR. The OPT mode is basic and is automatically selected to provide a cost factor optimized speed. The NON OPT results from a manual input of desired Mach/IAS. HOLD / ENDUR is obtained from any other cruise page by operation of the slew switch to obtain best holding speed. Entry of mode occurs by operating the line select key.
Three basic descent modes are DES OPT, DES NON OPT and DES V/S. The OPT mode provides a cost factor optimized speed to Bottom of Descent (BOD) point. The DES NON OPT is the default mode and permits manual entry of desired descent speed/vertical speed. DES V/S permits manual entry of desired descent speed or vertical speed. If in cruise, and altitude is armed below current altitude, the DES display page will be automatically selected. However, pilot action is required to actually initiate the descent. Once the descent mode has been entered, it is terminated by either a different mode selection or by reaching the armed altitude.
Continental
Rev. 12/01/00 #29 Flight Manual
Operation of the VERT WPTS function key provides the basic page from which the following functions are performed: display of vertical events in sequence; definition/display of vertical flight plan waypoint data; display of current position and related navigation data (track, groundspeed, wind, etc.).
In general, any display page can be called up at any time, with one exception. During preflight and prior to entering GWT, climb, cruise, and descent pages cannot be displayed. In addition, information available to the PMS at its interface is used to provide automatic display page selection as follows:
.
Selects first planning page when airplane is on the ground and both engines are shut down.
.
Selects cruise page when armed clearance altitude is reached during climb or descent in PMS.
.
Selects climb or descent page when in PMS cruise and a new clearance altitude is armed.
PMS OPERATION REVIEW
PMS PLAN
Prior to loading PMS data:
STS / TEST Key ............................................... PUSH / HOLD / RELEASE
Push and hold STS / TEST key and verify mode annunciators, line select keys, data display and PMS warning annunciator are illuminated. Release STS / TEST key and verify airframe / engine type is correct as displayed and software program identification number is displayed.
Cost Index Factor ......................................ENTER INTO SCRATCHPAD
Enter Cost Index Factor into scratchpad using the data entry keys.
Note: The Cost Index Factor is loadable from 0 to 255. This will effect OPT speeds and altitudes. If no value is loaded for Cost Index Factor, PMS will use a default value of zero. Cost Index Factor may be loaded while in flight.
Line Select Key 1...................................................................................PUSH
Push Line Select key 1 to enter COST Index Factor into data line 1.
Drag / Fuel Flow Factors...........................ENTER INTO SCRATCHPAD
Enter drag factor (KD), fuel flow factor (KF) into scratchpad using data entry keys. KD and KF may have values from –9.9 to + 9.9. Default is zero. Values for KD and KF affect OPT speeds.
Line Select Key 2...................................................................................PUSH
Push Line Select key 2 to enter KD and KF data.
Descent Default Speed .......................................................................ENTER
Descent default speed can be changed on this page only while on the ground. To load the PLAN page:
PLAN Key .............................................................................................PUSH
Push PLAN key and observe PLAN page is displayed in scratchpad.
Note: All data on this page is required for complete PERF OPERATION. If all data is not entered, only limited PERF functions are available.
(Continued)
Continental
Rev. 12/01/00 #29 Flight Manual
GWT.........................................................ENTER INTO SCRATCHPAD
Enter GWT into scratchpad. Push Line Select key 1 to transfer GWT
into Data Line 1.
FUEL........................................................ENTER INTO SCRATCHPAD
Enter FUEL into scratchpad. Push Line Select key 2 to transfer FUEL
into Data Line 2.
TRIP.........................................................ENTER INTO SCRATCHPAD
Enter TRIP distance into scratchpad. Push Line Select key 3 to transfer TRIP distance into Data Line 3.
Note: Unreasonable GWT and FUEL will cause CHECK GWT or CHECK FUEL (respectively) messages to appear in scratchpad.
Editing any parameter, except fuel, will cause a recomputation to take
place.
No other pages are available (except the STS / TEST page) until
中國航空網 m.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(149)
