. Deep ocean cable burial concept development. Cables, Submarine; Marine engineering; Civil engineering. requirement of less than 10,000 pounds. There are two major problems identified for this type of propulsion system. While the traction unit is pulling itself along the cable, it is also ''pushing" it astern. Any slack in the cable will be taken up by the traction unit and will result in buckled cable astern, which will tend not to stay in the trench and may damage the cable. The other problem is one of size. In order to avoid overstressing the cable locally, the traction unit must be a
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