TM 1-1510-225-10 3B-89 Table 3B-38.  VNAV Direct-To NO. DESCRIPTION/FUNCTION 1 Press the Direct function key - DIR. 2 Select VNAV Direct-To the active waypoint,   if   it   has   an   altitude/flight  level assigned  (indicated  by  the  V  attribute).    If the  waypoint  on  line  3  does  not  have  an altitude/flight    level    assigned    the    V NAV label is blanked. 3 Indicates V attribute. 4 VNAV  CLIMB/DESCNT  path  synchronizes to the Direct-To path. If  an  angle  is  entered,  the  vertical  rate  will  be dynamically  updated  based  on  the  angle  prior  to  and during capture and the subsequent vertical path.  An * will appear next to the angle value to indicate that it is fixed.  If a vertical rate is initially entered, the angle is updated based on the entered rate prior to the capture points  plus  an  asterisk  appears  next  to  the  rate.    At capture of   the  vertical  path,  the  angle  becomes  fixed and    the    entered    rate    is    now    updated    during    the climb/descent.    The  asterisk  is  now  displayed  next  to the angle to indicate the fixed value. (4)   Direct   Climb   or   Descent   Path   Display.   The DIRECT CLIMB/ DESCNT vertical rate or angle on the  Flight  Plan  Waypoint  page  is  computed  based  on the   FMS-800   present   position   and   altitude   for   any waypoint  with  an  altitude  assigned,  not  just  for  the active   waypoint.      Refer   to   Figure   3B -52   and   Table 3B-39.    This  advisory  enables  the  pilot  to  plan  his climb or descent.  He is apprised of the actual vertical maneuver   required.      For   example,   ATC   delays   his climb/descent  clearance  beyond  the  planned  Bottom Of  Climb  (BOC)  or  Top  Of  Descent  (TOD),  or  clears the    aircraft    Direct-To    another    waypoint    using    the specified waypoint altitude.  This is also the value that will   be   inserted   if   the   pilot   were   to   select   a   VNAV Direct-To. Figure 3B-52.  VNAV Steering Pages (5)   VNAV   Direct-To.      To   perform   a   VNAV Direct-To   climb   or   descent,   follow   the    procedures specified in Figure 3B -53. Table 3B-39.  VNAV Steering Pages NO. DESCRIPTION/FUNCTION 1 Pressing the Steering function key - STR will access the last viewed Steering page. 2 Scrolls vertically between the Steering pages. 3 Indicates the distance to BOC/ TOD. 4 Indicates direct VNAV guidance. 5 Specified altitude/flight level and path angle to the active waypoint. 6 Current aircraft altitude.