fiBT. 



Date 



Machine. £ lied. 

 Turns 



/C Cor. r y Ihpth 

 &k i* lead J~ 

 Bottom q 



t \n \ 



i 



,V<>. >>/ Tin FJUd&Rii ft r 

 Cor red tit fen ipcn/t tire 

 Air / Surface J J Drift faiU, 



SOUNDING WIRE. 





DREDGE ROPE. 







Tt'JIK.S. 



iMJWN. i<r. 





LSl t*+ 



0 



[00 



s. in 00 

 J 



f \j c CjJJ 







SCO 



300 





S. cm 



I 



































I tKXJ 











i r* h > 











j it* j 











1 i<*> 











>5oc,i 



















l60O 











1700 











1S00 











lyOO 



3000 



















2100 











3iOO 











JJun 

 24OO 













