At this point we passed the synthetic line through a set of snatch 

 blocks, rigged with a Dillon gauge to monitor tension, and winched 

 the line in to pull the float strings together. When the end of the 

 1471 ft. float string came aboard we made it fast to the Head Frame 

 and removed the synthetic line. The Head Frame, now under 

 1500 lbs. tension, was lowered into the water and tagged off with 

 a floated shot of wire rope to a Marker Buoy. The Head Frame 

 settled about 20 ft. below the surface. 



Periodically during this operation we used a small boat, the 

 MIC MAC, to inspect the float strings on the surface and watch for 

 any abnormality such as a back turn. Also, while we were winching 

 in the synthetic line the Buoy Boat assisted by holding the T-Boat 

 on a line between the two moorings, a task which would only be 

 essential in very high winds to prevent overstressing the polypro 

 line. The operation, as described above, was completed success- 

 fully in about 5 hours. 



5, 6 Installation of the Signal Cable /Sensor Array 



We waited for a calm day and favorable 24 hour forecast be- 

 fore starting on this most difficult phase of the installation. The 

 YC-1378 barge, under tow by the T-426, was on station over the 

 inverted "v" at 0920, 4 October 1968. We winched the Head Frame 

 up to the stern chute of the barge, attached Station 4, and had it 

 back in the water at 1030. The T-Boat then simply headed for 

 shore along the telescope back azimuth. It was easy to maintain 

 a slow speed with the barge aligned with the cable since the course 

 was directly into the wind. The 100 ft. long cable trough was well 

 suited for the float attachment task. We would simply stop the 

 cable drum permitting each of seven men to attach a float. We 

 would then engage the drum, pay out 100 ft. of cable, stop the 

 drum again, and repeat the procedure. By 1540 we reached 

 Station 1, having payed out over 10, 000 ft. of cable and attached B 



almost 700 floats. This activity is illustrated in Figs. 5-11 and . 



5-13. Even though many turns had dropped (see Fig. 5-5), the 

 cable pulled off the drum, without much difficulty since the tension 

 was not excessive ( 1000 lbs. ) and no turns became captured. 



We attached the Bridle to Station 1 (see Fig. 5-14) and passed 

 a tag line from the Bridle to the Pontoon Barge which was ready 

 on Station under tow from the R/V Panulirus II (see Fig. 5-15). 

 When Station 1 was several hundred feet aft and clear of the main 

 barge,the Pontoon Barge was backed down to bring the Station 

 close aboard for attachment of the Inner Mooring Assembly. Even 

 though the wind and sea conditions were favorable the maneuvering 

 of two barges in concert proved very difficult, mainly because 



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