Rope/wire: Data

The line type wizard can create line types representing a variety of ropes and wires. The input data required consist of the following:

Rope/wire nominal diameter

The overall diameter $d$ of the rope or wire. The majority of the derived line type data are functions of this diameter.

Warning:

The line type outer diameter derived by the wizard is less than this nominal diameter, in order to give the correct buoyancy. You must allow for this when setting the line type drag and added mass coefficients, since these coefficients correspond to the derived line type outer diameter, not the nominal diameter.

Construction

Can be one of:

Nylon (8-strand Multiplait)
Polyester (8-strand Multiplait)
Polypropylene (8-strand Multiplait)
6×19 wire with fibre core (8-strand Multiplait)
6×19 wire with wire core (8-strand Multiplait)

The construction affects both the mass per unit length and the strength of the line type.