TM  1-1520-240-10            3-3-11 Table  3-3-3.   Spheroid Data Codes (Continued) SPHEROID CODE AREA COVERED INTERNATIONAL INf All of Europe, Saudi Arabia, Greenland, South America, Indian Ocean, Pacific Ocean, and Atlantic Ocean. BESSEL BEf Indonesia, Manchu- rian, to Eastern Rus- sia. EVEREST EVf Mt. Everest, India, and Pakistan AUSTRALIAN AUf Australia NATIONAL 3-3-18.  Entering Present Position or Destination in UTM. The variation of a destination must be entered after the associated  destination  coordinates  are  entered,  since each time a destination is entered its associated variation is deleted. The order of entry for present position is irrele- vant. a.  MODE SELECTOR — UTM. b.  DISPLAY selector — DEST-TGT. c.  DEST DISP thumbwheel — P, numeral, or H as desired. d.  Present position and destination — Enter. (Exam- ple: Entry of zone 31T, area CF, easting 0958 and north- ing 3849). (1) KYBD  pushbutton  —  Press.  Observe  that display freeze and TGT STR indicator blanks. (2) KYBD  pushbutton  —  Press.  Observe  that center display blanks. (3) Key 3, 1, 7, and 8 — Press. (4) KYBD  pushbutton  —  Press.  Observe  left and right displays blank. (5) Key 1, 3, 2, 3, 0, 9, 5, 8, 3, 8, 4, 9— Press. (6) ENT key — Press. Left, right and center dis- plays will momentarily blank and then display CF 0958, 3849, 31T, respectively, TGT STR number will appear. 3-3-19.  Entering Present Position or Destination in LAT/LONG. The variation of a destination must be entered after the associated  destination  coordinates  are  entered,  since each time a destination is entered its associated variation is deleted. The order of entry for present position is irrele- vant. a.  MODE selector — LAT/LONG. b.  DISPLAY selector — DEST-TGT. c.  DEST DISP thumbwheel — P, numeral, or H as desired. d.  Present position or destination — Enter. (Exam- ple: Entry of N41_ 10.1 minutes and E035_ 50.2 min- utes.) (1) KYBD  pushbutton  —  Press.  Observe  that display freezes and TGT STR indicator blanks. (2) KYBD  pushbutton  —  Press.  Observe  that left display blanks. (3) Key 5, 5, 4.1, 1, 0, and 1 — Press. (4) KYBD pushbutton — Press. Observe right display blank. (5) Key 2, 2, 0, 3, 5, 5, 0, and 2— Press. (6) ENT  key  —  Press.  Left,  right,  and  center displays will momentarily blank and TGT STR number will reappear. Displays should indicate N41_ 10.1 E035_ 50.2. 3-3-20.  Entering Ground Speed and Track. a.  MODE selector — BACK UP. b.  DISPLAY selector — GS-TK. c.  Ground speed and track — Enter. (Example; Enter 131 km/h and 024_. Press KYBD pushbutton, observe that left display freezes and TGT STR indicator blanks. Press KYBD pushbutton and observe that left display blanks. d.  Press keys 1, 3, and 1. Left display indicates 131. Press KYBD pushbutton, control shifts to right display, and right display blanks. Press keys 0, 2 and 4. e.  ENT key — Press. The entire display will blank, and TGT STR number will reappear. Display should indi- cate 131 024_. 3-3-21.  System Initialization. a.  DEST DISP thumbwheel — P. b.  Present position spheroid and/or variation (para. 3-39) — Enter. NOTE Do  not  press  ENT  key  after  entering  initial position fix. c.  Initial fix position (para. 3-3-18  or 3-3-19) — En- ter. d.  When the helicopter is sitting over or overflies the initial fix position — ENT.