Topic summary

Nautical cable

Nautical cable

Band of woven ropes, used on ships A nautical cable is a band of tightly woven and clamped ropes, of a defined cable length, used during the age of sail for deep water anchoring, heavy lifting, ship to ship transfers and towing during blue sea sailing and other uses. Waterproof lines Ordinary rope is not waterproof. When a ship anchors in relatively deep water (greater than about 35 metres or 20 fathoms), the anchor and rope that is let down becomes drenched with water, becoming prohibitively difficult to raise again, even with a mechanism like a capstan. This ultimately limits the depths available with ordinary rope to within the weight bearing capacity of the rope. The rope will become so heavy with water it will break. The traditional instructions, according to the British Royal Navy in the age of sail, are: Three large strands of tightly woven rope of about 200 metres (110 fathoms) in length are themselves tightly woven in a direction counter to the weave, or twist, of the rope and clamped together over intervals to provide one strong length of rope that is effectively waterproof. The three ropes are so tightly wound counter to the weave of the constituent ropes that the fibers