UTB and grab the crown line or the crown buoy. The crown line was then 

 fastened to a cleat on the UTB, and the UTB was slowly backed away from 

 the anchor location, but in a direction opposite to that used during 

 deployment. In a few minutes, the anchor was pulled loose from the bottom, 

 the crown line was removed from the cleat, and the anchor was retrieved by 

 two men. Upon completion of the anchor retrieval, the mooring line between 

 the buoy and the anchor was slowly retrieved as the boat was propelled 

 towards the buoy. Next, the buoy was pulled inside the boat. The boat 

 was then maneuvered towards the boom connector, two men bent down and 

 pulled the boom connector at the side of the boat out of the water, 

 disengaged the shackle, and lowered the boom gently into the water. 



No special precautions were felt necessary, particularly because there 

 were no waves or winds on this day. 



Deployment of the Mooring Systems from the Flattop Boat 



The medium and the large mooring systems were deployed from the FTB. 

 The deployment procedure and the number of men required were similar to 

 those used during the deployment of the small mooring system. 



In tying the first end of a line, an alternative to shackles may be 

 used. This can be done by passing the loop of the line through the eye and 

 then the bitter end of the line through the loop, as shown in Figure 27. 



Retrieval of the Mooring Systems from the F lattop Boat 



Although the medium and the large mooring systems were bulky and 

 heavy, the retrieval procedure was similar to the one used during retrieval 

 of the small mooring system using the UTB. For deployment and retrieval 

 of the anchors, two strong men were required, in addition to one man at 

 the propeller controls. 



Maximum Force Exerted by the Utility Boat against the Mooring System 



The maximum force that a UTB can exert against a mooring system (or 

 against any fixed object for that matter) was deteiroined by tying a 

 line between the samson post of the UTB and a piling through a dynamometer. 

 The engine was then run full throttle and the maximum reading on the dyna- 

 mometer was recorded. The maximum load exerted on the dynamometer was 

 1,000 + 20 lb. 



As indicated earlier, the engine power appears to be less than 

 desirable for operation in harbor areas, particularly if winds, waves, 

 and/or currents are present. 



27 



