Appendix 



ANCHOR INSTALLATION LOG 



In the following paragraphs, details are given of the specifics of 

 various installations, particularly those in which problems occurred. 

 Although the functioning problems that were solved should not recur, the 

 progress of the work is typical of what would be expected in a possible 

 future similar operation with such a prototype system. 



INSTALLATION P1 



This installation was the first for the UCT-One personnel, and it 

 understandably went slowly. As personnel became more familiar with the 

 assembly procedures, and handling procedures were improved, subsequent 

 operations went progressively faster. Some components could not be 

 assembled because of improper tolerances. Most components were 

 fabricated and had to be shipped to Diego Garcia without their fit 

 being checked; as a result, some field modifications were required. 

 Most of the first day was expended in making these adjustments and 

 assembling and firing the first anchor. The anchor, placed off the 

 bow of the barge, was supposed to be lowered rapidly to the seafloor 

 but inadvertently was allowed to free-fall in 72 feet (22 m) of water. 

 While this was not intended, in fact it caused considerable excitement, 

 the system landed correctly (upright), was fired by the electrical firing 

 cable that had been retained at the surface, and embedded properly. 

 When the launch vehicle was recovered, it was thoroughly inspected for 

 any weld cracks or structural deformations; there were none. 



INSTALLATION P2 



The anchor was assembled in about 2-1/2 hours and placed on the 

 seafloor. The anchor did not fire and was left on the seafloor for 30 

 minutes in case there was a hangfire. It was then brought to the surface 

 and inspected; it was in a safe status as evidenced by the hydrostati- 

 cally enabled mechanical interlock in the S/A device being in the out- 

 of-line (safe) position. The S/A device was inspected; the gas cannister, 

 which provides the energy to drive a firing pin into the primer located 

 in the cartridge assembly, was discovered to be empty. It had been 

 filled with dry air to a pressure of 1,100 psi (7.6 MPa) but apparently 

 the one-way valve in the cannister did not close after filling and the 

 pressure bled before the unit could be placed in a dielectric fluid to 

 check for slow leakage. 



Possible recurrence was prevented by check-measuring the outside 

 length of each cannister, when empty and when filled, with a sensitive 

 micrometer. The cannister would be measured as it was being filled and 

 just prior to installing it in the S/A device. This proved entirely 

 satisfactory and is very simple to perform. 



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