TM 1-1510-225-10 3B-88 Table 3B-37. Entry and Display of VNAV Parameters NO. DESCRIPTION/FUNCTION 1 Press Flight Plan Function Key - FPLN. 2 V indicates an altitude has been assigned at this waypoint. 3 Press right line select key to access Flight Plan Waypoint page for desired waypoint. 4 Enter flight level (or altitude) in the scratchpad. 5 Press altitude line select key to insert flight level (or altitude). 6 Enter vertical rate (or angle) in the scratchpad. 7 The VNAV information is displayed. 8 Press the insert rate (3R) or angle (3L). 9 Toggle between CLIMB and DESCNT selections. 10 Asterisk indicates rate is the fixed or entered quantity; after VNAV capture, the angle becomes fixed and vertical speed becomes variable with groundspeed. If the waypoint is an FMS approach MAP, the altitude is displayed, but no entry is permitted. If an angle is associated with the MAP altitude, the V attribute will be displayed on the Flight Plan page. On MDA approaches, no descent angle is defined for the approach, so vertical guidance is disabled and the V attribute is not displayed. (3) Entry and Display of Climb or Descent Path. If only an altitude/flight level is entered and no climb or descent path is specified, the climb/descent path is undefined and no vertical guidance is provided. To activate vertical guidance to the assigned altitude, either a climb/descent path rate or angle must be defined, or a Direct-To VNAV will be executed. If two consecutive waypoints are assigned altitudes/flight levels, the default path is a straight-line climb or descent between them, same as for a published profile descent. To specify a climb/descent path other than the default, enter the desired angle (0.0 to 6.0 degrees) or initial vertical rate (0 to 3500 fpm). Press the VNAV line select key for angle or rate entry. Refer to Figure 3B-51 and Table 3B-38. Select either CLIMB or DESCNTline select key on the Flight Plan Waypoint page. Figure 3B-51. VNAV Direct-To
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