INTRODUCTION TO SONAR 



SHIP 



»1 BEARINGS DRAWING TOWARD THE BOW. 

 SHIP WILL PASS ASTERN OF SUBMARINE. 



SHIP 



«2 BEARING R EMAI NS STEADY. 

 COLLISION COURSE. 



»3 BEARINGS DRAWING AFT. 



SHIP WILL PASS AHEAD OF SUBMARINE. 



71.5 



Figure 3-10. — Relative motion situations. 



28 



