place either on deck or completely submerged to reduce the effects of the interface. Practi- 

 cality and excellence in seamanship are more essential to success in an ocean engineering 

 evolution than accuracy of engineering effort. 



In a complex and unique operation, a free flow of information among all concerned is 

 necessary for effective action. When a number of activities are involved all must work togeth- 

 er for the success of the project. Individual group interests cannot be served without a detri- 

 mental effect on project effectiveness. 



The use of a manned submersible offers advantages over a remote-controlled unmanned 

 vehicle. Having a human eye and brain on the scene permits otherwise unobtainable inputs 

 to command, and permits easy and rapid modification of plans. 



Because good seamanship was the rule, no safety program other than routine care was 

 enforced. The recovery of ALVIN was accomplished without injury to personnel. 



39 



