190 



REP OUT ON 



FORWARD ALIDADE COMPASS. 

 Normal Equations. 



Hence 



/*, = 0.025 



= 0.0162 

 x 



X 



A/. 



! 4- 0.014 



: O.OOOIO 



/ = 



X 



O.OOI2 



o. 106 



0.00031 



FORWARD BINNACLE COMPASS. 

 Equations of Condition. 



Hence 



Normal Equations. 



+ 4983-3 



+ '6.294 

 + 0.826 

 + 70.177 



+ 0.258 

 + 28.825 



0.000 



0.0477 



= 0.00041 



: - O.OO59 



= 0.075 



+ 49^3-3 



3 = 0.00074 



