TM 1-1510-225-10 3A-89 3.   FR     waypoint     –     Insert     desired waypoint 4.   ENTER  key   –  Press.    The  next waypoint  in  the  active  flight  plan sequence   will   appear   in   the   TO field. 5.   TO waypoint  – Verify.  To change the TO waypoint, insert the desired identifier. 6.   ENTER  key    –  Press  to  activate the     new     leg     and     cancel     the holding pattern. t.    Vertical Navigation Operation Pre-Departure. (1)   Setting  Cruise  Altitude,  Transition  Level, and  Default  Flight  Path Angle.   This  procedure  allows the  pilot  to  define  a  cruise  altitude  and  change  the default  values  for  transition  level  and  flight  path  angle after initial leg selection. 1.   VNAV  key   –  Press  to  display  VNAV page 1. 2.   Line  select  key    –   Press   to   position cursor over DATA?. 3.   ENTER key  – Press to display VNAV DATA  with  cursor  over  the  CRUISE ALT field. 4.   Cruise altitude – Insert. NOTE Only  two  or  three  digits  are  required  to input an altitude (that is, enter 80 and 8000 will be displayed). Any    altitude    entered    greater    than    the TRANS LEVEL, which normally defaults to FL180, is converted and displayed as Flight Level (FL).  For example, entering 210 will display FL210. An   altitude   less   than   1000   feet   must   be entered with a preceding zero (that is, enter 052 and 52 will be displayed). NOTE A (at or above) or B (at or below) constraint entries are not applicable.  Setting a cruise altitude    will    establish    a    #TOD    (top    of descent) waypoint or a #TOC (top of climb) waypoint if VNAV is valid.  A  #TOC will be established   only   if   there   are   no   altitude constraints between the aircraft and #TOC. 5.   ENTER key – Press. 6.   Transition level – Insert or verify. NOTE Field  defaults  to  FL180  if  pilot  does  not enter  a  value.    Anytime  a  TRANS  ALT  is entered,    the    value    will    remain    in    non- volatile  memory  even  after  the  system  is shut down. 7.   ENTER key – Press. 8.   Default   flight   path   angle   (DEFAULT FPA) – Insert or verify (in degrees and tenths of a degree, 0.1 to 6.0 range). NOTE Field defaults to 3.0 if pilot does not enter a value.      Anytime   an   FPA   is   entered,   the value   will   remain   in   nonvolatile   memory even after the system is shut down. 9.   ENTER key – Press to return to VNAV page. (2)   Creating/Changing VNAV Waypoints.   Vertical navigation constraints can only be programmed  for  waypoints  on  the  active  flight  plan, and    though    all    active    flight    plan    waypoints    are displayed  on  VNAV  pages,  new  waypoints  must  be added  to  the  active  flight  plan  before  they  appear  on the VNAV flight plan after initial leg selection. 1.   NAV,   FPL,   or   D      key   –   Press   to display applicable page. 2.   Line  select  key    –   Press   to   position cursor over desired waypoint. NOTE On Navigation pages, only the TO waypoint can be selected. 3.   VNAV  key   –  Press  to  display  VNAV Waypoint page for selected waypoint. 4.   ALT – Insert altitude constraint followed by an A (at  or  above)  or  a  B