This was found to be a preferred method of storing compared with wrapping 

 the line around the buoy. 



4. Eyebolts are required at the bottom end of the boom connectors 

 which match shackles at the end of the mooring lines. 



5. Under calm weather conditions, no bridle assembly was required 

 to stabilize the boom. 



6 . Three people are required to complete deployment and retrieval 

 of the boom mooring system, including one person on the engine 

 controls of the FTB or the UTB used for deployment and retrieval. 



The time required to complete deployment or retrieval was approximately 

 15 minutes under negligible wind, wave, and current conditions. 



7. The UTB could exert a 1,000-lb pull against a mooring system. 



8. To confine an oil spill at a "closed pier" defined as one 

 which has a vertical wall along the length of the pier, two 

 mooring systems are adequate when the ends of the boom are secured 

 to pilings through bulkhead attachments. 



9. To confine an oil spill at an "open pier", defined as one under 

 which water can pass from one side to the other, the boom may require 

 three mooring systems and two bulkhead attachments if the ship is large 

 and the weather is adverse. However, under calm weather conditions and 

 for a smaller ship, the above requirement may be reduced by one 

 mooring system. 



10. Four mooring systems are required to encircle a ship completely or 

 to contain an oil spill in an open area away from all structures. 



11. If the winds and the currents are relatively mild, and if the spill 

 is planned to be removed in a short time, then a catenary configuration 

 requiring only two mooring systems should be adequate. 



12. For mooring medium and large mooring systems to the boom, 3/4-inch- 

 diameter, polyester-cover, polypropylene -core , 2-in-l stable-braid 

 lines were found to be adequate. However, these lines do not float. 



39 



