SCIENCE AND THE SEA 



Too much speed during periods of too little visibility is often the cause of collision. 



radar indicated that the approaching vessel was 

 still off the starboard bow and heading toward 

 Two Bush Ledge Lighted Gong Buoy at approxi- 

 mately eight or nine knots. At 1814, observing 

 that the bearing continued to increase, Ship A 

 again went ahead at half speed still sounding fog 

 signals. 



At 1816 the radar indicated that the relative 

 bearing ceased to open, and, again, the engine 

 was stopped. Visibility at this time was restricted 

 to such an extent that personnel in the wheelhouse 

 could not see beyond the ship's bow. Fog signals 

 were alternately exchanged between the two 

 vessels as they steadily approached their rendez- 

 vous with fate. 



The master ordered emergency full astern and 

 sounded the appropriate signal when, at 1819, three 

 short blasts were heard at close range from the 

 ship ahead. The following moments were filled 

 with anxiety as all eyes strained to pierce the mist 

 ahead. At 1821 a slight jar was felt, and it was 

 determined that Ship A had collided with Ship B 

 almost perpendicular to its port side. 



SHIP B 



Closeup of impact area 



80 



