TM 1-1520-218-10 3C-166 If   the   FROM   and/or   TO   waypoints   are   in   the active    flight    plan,    their    corresponding    flight    plan waypoint numbers are displayed. Figure 3C-116.  Data Page Displayed Information Table 3C-77.  Data Page Displayed Information Procedure NO. DESCRIPTION/FUNCTION 1 ETE  for  displayed  leg,  direct  segment,  or along flight plan. 2 ETA    using    current    TAS    and    wind    or entered groundspeed. 3 Flight plan waypoint number. 4 Latitude–Longitude of TO waypoint. 5 FROM–TO   bearing/distance   or   distance along flight plan. If  the  FROM  waypoint  on  the  Data  page  is  a flight plan waypoint and a holding pattern or MFP is in the flight plan at, or prior to that point, the ETA at the TO   waypoint   assumes   the   aircraft   will   depart   the holding fix at the entered EFC time or depart the MFP pattern   fix   at   the   ETD,   if   entered.      Otherwise,   no holding or pattern "on–station" loiter time is included in the ETA calculation. When the FROM waypoint or PPSN DIRECT is selected,  then  the  bearing  and  great  circle  distance between  the  FROM  and  TO  waypoints  are  indicated on   data   line   3.      Refer   to   Figures   3C–110  through 3C-115.    When  the  PPSN  VIA  FPLN  is  selected,  the along    flight    plan    distance    to    the    TO    waypoint    is indicated, Figure 3C–114. The ETE and ETA are indicated  on data lines 3 and   4,   respectively.      When   the   FROM   waypoint   is selected,  the  ETA  is  calculated  from  aircraft  present position to the FROM waypoint, and then direct to the TO waypoint; and, the ETE is calculated between the FROM   and   TO   waypoints,   Figures 3C-110,   3C-111, and  3C–112.  When   PPSN  DIRECT  is  selected,  the ETE  and  ETA  are  calculated  for  a  flight  path  directly between aircraft present position and the TO waypoint, Figures 3C-113 and 3C–115.  When PPSN VIA FPLN is selected, the ETA and ETE are calculated along the flight plan from present position, Figure 3C-114. The  ETA  and  ETE  are  calculated  one  of  two ways,   depending   on   the   TO   waypoint.      If   the   TO waypoint is the active waypoint, direct to a future flight plan   waypoint   (PPSN   DIRECT),   or   a   nonflight  plan waypoint,   the   current   wind   and   TAS   are   used   to calculate  the  ETA  and  ETE.    If  the  TO  waypoint  is  a future  or  history  waypoint,  the  intervening  leg  winds are  used  to  calculate  the  ETA  and  ETE.    When  the aircraft  is  not  airborne,  the  groundspeed  entered  on the Navigation Configuration page is used for ETA and ETE calculations. (2)   Selection and Display of Waypoint Identifier Data. To     view     the     ICAO     database information  for  identifier–referenced  waypoints,  select or enter the waypoint identifier or leg pair on the Data page and press one of the ¬ or ®  arrow function keys to  scroll  to  the  corresponding  Ident  Data  page  for  the TO   waypoint.      Refer   to   Figure   3C-117   and   Table 3C-78. If the TO waypoint on the Data page selected leg is  an  ICAO  identifier–referenced  waypoint  (including identifier / bearing / distance waypoints), its corresponding database information is presented.  The waypoint   type,   identifier,   station   frequency/   TACAN channel     (if     applicable),     and     elevation     MSL     are displayed.    If  the  waypoint  is  a  NAV aid with a station declination, it is displayed as DCL.  If the waypoint is not a NAV aid with a station declination, the FMS–800 computes  the  magnetic  variation  for  that  location  and displays MVAR.