liable to entanglement in the lines he is 

 responsible for clearing. 



Environmental Hazards 



Within this category are hazards external 

 to the submersible. These hazards include: 1) 



Natural Hazards (weather, currents, bottom 

 sediment, topography, visibility, and orga- 

 nisms), and 2) Man-Made Hazards (cables, 

 wrecks, bottom hardware and buoyed arrays, 

 surface traffic, subsurface traffic and explo- 

 sive ordnance). A more detailed account of 



Fig. 13.5 Divers attaching a salvage line \o ALUMINAUTs bow The hull ol its support ship is in the background. (Robert Dill. NOAA) 



630 



