TM 1-1510-218-10 3C-153 To  attach  an  MFP  to  an  already  existing  flight plan waypoint,  define  the  MFP  but  leave  line  1  blank on the MFP page.  Press line select key FPLN INSR to access    the    Flight    Plan    page    with    the    message, ATTACH    XXX    AT?,    displayed    in    the    scratchpad.   Where  XXX  is  FG8,  RTK,  CIR,  or  CRP  depending  on which type of MFP was defined.  After the flight plan is scrolled  to  the  desired  location,  press  the  line  select key adjacent to the pattern fix. A  P  is  displayed  to  the  right  of  the  designated waypoint as a reminder that it has been designated as the pattern fix. Once  an  MFP  has  been  inserted  into  the  flight plan,    the    MFP    parameters    can    be    viewed    and modified,   with   the   exception   of   the   pattern   fix,   by pressing the line select key adjacent to the associated P symbol on the Flight Plan page.  Pressing this key once  will  access  the  associated  Flight  Plan  Waypoint page and a second time will access the MFP Waypoint page. (6)   MFP  Pattern  Course  Edits.    The  pattern course is entered by two different methods.  In either case, the course can be modified. 1.   Defaulting    to    the    current    inbound course to the fix. 2.   The   crew   enters   the   desired   course via the scratchpad. (7)   MFP Activation and Execution.  When the pattern fix is passed for the first time, pattern guidance computations are activated.  At this time, four changes occur   in   both   the   flight   plan   operation   and   page displays. 1.   Automatic leg advance is suspended. 2.   Course  edits  on  the  Flight  Plan  page may   no   longer   be   made.      Inbound pattern course edits may be made on the    MFP    Waypoint    page,    which    is accessed    through    the    Flight    Plan Waypoint page. 3.   When on the inbound leg, all displays will  reference  the  computed  inbound course,  not  necessarily  the  inbound course  displayed  on  the  MFP  page.   Computed  inbound  course  for  figure eight  patterns  is  significantly  different than displayed inbound course. 4.   When    o n     the     outbound     leg,     the displays  will  reference  the  computed outbound course. If   any   MFP   definition   parameters   are   changed while in the pattern, the changes are applied after the aircraft  passes  the  pattern  fix  (transition  from  TO  to FROM), except for the  pattern length and width, which take effect immediately if on the outbound leg. When  pattern  guidance  has  been  activated,  all course  and  lateral  deviation  displays  now  reference the   computed   inbound   or   outbound   course   of   the pattern.  The 10-second turn alert will be computed on the outbound leg to alert the crew of the upcoming turn to the inbound leg. (8)   CRP Definition and Execution.  CRP's are defined   by   entering   points   (i.e.,   identifiers,   latitude– longitude  positions,  etc.)  on  the  CRP  MFP  pages  1 through 3.  Up to nine waypoints (in addition to the fix point, which is optional) may be specified.  To specify the MFP fix on the CRP MFP pages, enter the position at the FIX line on CRP MFP page 1. CRP's  will  only  be  executed  upon  arrival  at  the CRP   fix   if   AUTO   or  FLYOVER  sequence  mode  is selected.  If MAN sequence mode is selected, the fix is overflown.  To insert the pattern, toggle the sequence mode to  AUTO or FLYOVER. Once  the  CRP  is  being  executed,  guidance  is provided to each point in the CRP as if they were flight plan waypoints.  An * is displayed adjacent to the CRP waypoint number of the current TO waypoint, which is on the associated CRP MFP page. To  fly  directly  to  any  CRP  pattern  point,  press DIR.    Instead  of  selecting  the  line  selects  on  the  left- hand side of the Flight Plan page, select the  P attribute of  the  CRP  fix  waypoint  on  the  right -hand line select.   This  action  will  access  the  CRP  Patterns  page  and allow selection of the CRP point for direct–to flight. (9)   Maximum Bank Angle.  When an MFP is inserted in the flight plan, the FMS–800 computes and displays the maximum bank angle allowing for proper execution  of  the  pattern  based  on  pattern  width  and aircraft   speed,   if   airborne.      The   maximum   bank   is displayed on line 4 of the MFP Waypoint page. (10)   Estimated    Time    of    Departure.        The Estimated   Time   of   Departure   (ETD)   entry   permits future     waypoint     ETA’s     to     be     more     realistically calculated.    If  an  ETD  is  entered  (in  UTC),  then  all future waypoint ETA’s are calculated from that pattern fix  departure  reference.     If  no  ETD  is  entered  or  it  is