GREAT CIRCLE WORK FORM for ABHAV METHOD


	      PONTA ALBINA, ANGOLA		     BOSTON, MA
	From ________________________________  To _______________________________
	      L1 15 53 S   Lo1 11 43 E		   L2 42 21 N   Lo2 71 03 W

	      -15 53 S  N                             105 53
	L1    _________ S           89  60     coL1   _________          89  60      
	       42 21 N  N          -15 53              95 27             42 21
	L2    _________ S  L1   (-)________    z   (-)_________   L2 (-)_________   
	       58 14	           105 53	       10 26             47 39
	L1~L2 _________    coL1   _________    coL1~z _________   coL2  _________   

					         95
	       11 43 E	E      z (deg)    __________           coz = 90 ~ z
	Lo1   _________ W                     5700
	       71 03 W  E        X 60     __________                 89 60
	Lo2   _________ W                       27                   95 27
	       82 46 W 	E      z (min) (+)__________           z    _________
	DLo   _________ W                     5727                    5 27
	                       D          __________ miles     coz  _________


	Enter L1 & L2 south as (-)           
	Observe L1 & L2 signs in calculating (L1~L2), coL1 & coL2.

	       82 46 W E      35947                   47 39       16317
	DLo   _________W  A ________           coL2 _________  B ________
	                                              10 26         827
	       42 21 N N      13133          coL1~z _________  B-________
	L2    _________S  C+________                              15490          81002 
							      =B ________ --> A ________

	      -15 53 S N       1691                  -15 53        1691
	L1    _________S  C+________            L1  _________  C ________

	                      50771         31068
	                 =A ________ --> B ________
	        58 14                       23677
	L1~L2 _________   -------------> B+________
	        95 27                       54745
	z     _________   <------------ =B ________    
 
	        5727                                   5 27         196.8
	D     _________  miles                  coz _________  C+________
	                                                           1887.8         1888 
	                  If DLo is W, Cn=360-C else Cn=C     =S ________ --> S-________

	                               312.6                47 26 W  E           79114
	                           Cn _________ <----- C N _________ W <----- A=________
									         A-S

	form abhav_gc1


				     FIGURE 5