TM 1-1510-218-10 3-67 2.   Rotate the left inner knob to select the TRI 1 page. 3.   Press the left  CRSR button to turn on   the   left   cursor   function.      The cursor   will   be   over   the   waypoint identifier at the top of the page. 4.   Use  the  left  inner  and  outer  knobs to     enter     the     identifier     of     the selected waypoint. 5.   Press the   ENT  button  to  view  the waypoint    page    for    the    selected waypoint on the right side. 6.   Press   the    ENT   button   again   to acknowledge   the   waypoint   page.   The distance, bearing, and estimated  time  en  route  are  now displayed. If    true    airspeed    and    wind    information    were entered on the TRI 0 page, the groundspeed displayed is  a  result  of  those  inputs  applied  to  the  direction  of flight    specified    on    the    TRI    1    page.        A    different groundspeed may be entered using the left outer knob to     position     the     cursor     over     each     digit     of     the groundspeed  and  using  the  left  inner  knob  to  select each individual digit. 7.   Calculate  an  estimate  of  the  fuel required  to  the  selected  waypoint.   Turn the left outer knob to position the cursor over the appropriate first digit   adjacent   to   the   Fuel   Flow (FF). 8.   Use  the  left  inner  and  outer  knobs as before to enter the aircraft's rate of   fuel   flow.      The   unit   (gallons, pounds,  etc.)  is  not  important  as long as all entries are in the same unit. 9.   Use  the  left  inner  and  outer  knobs to enter the amount of reserve fuel (RES)  desired  upon  arrival  at  the destination waypoint. The estimated  amount  of  fuel  required (F   REQ)   to   fly   to   the   selected waypoint with the specified reserve is now displayed.  Entering the fuel flow  and  reserve  fuel  on  the  TRI  1 page also inputs this same information   on   the   TRI   3   and   5 pages. 10.   Press the left  CRSR button to turn off the left cursor function. 11.   Select    the    TRI    2    page.        The minimum   En   route   Safe   Altitude (ESA)   and   a   listing   of   areas   of special    use    airspace    along    the route are displayed.  If all the areas of special use airspace won't fit on one page, there will be multiple TRI 2   pages   indicated   by   TRI+2,   as illustrated in Figure 3-91. (3)   The  Trip  Planning  3  And  4  Pages.    The TRI 3 and 4 pages allow trip planning between any two waypoints.      The   KLN   90B   does   not   have   to   be receiving GPS signals to use these pages. 1.   Select the TRI 3 page on the left side. 2.   Press the left  CRSR button to turn on the  left  cursor  function.    The  cursor will     be     located     over     the     FROM waypoint. 3.   Use  the  left  inner  and  outer   knobs to enter    the    identifier    of    the    FROM waypoint. 4.   Press   the    ENT   button   to   view   the waypoint page on the right side for the waypoint just entered. 5.   Press     the     ENT button again to approve    the    waypoint    page.        The cursor will position over the to waypoint identifier. 6.   Use  the  left  inner  and  outer  knobs  to enter the identifier of the to waypoint. 7.   Press   the    ENT   button   to   view   the waypoint page on the right side for the waypoint just entered. 8.   Press the  ENT  button  to  approve  the waypoint page. The distance, bearing,  and  estimated  time  en  route are now displayed, as shown in Figure 3-92.