UFC 4-159-03
3 October 2005
CHAPTER 7
VESSEL MOORING EQUIPMENT GUIDELINES
INTRODUCTION. A vessel must be provided with adequate mooring
7-1
equipment to meet its operational and design requirements. This equipment enables
the ship to anchor in a typical soil under design environmental conditions. In addition,
the ship can moor to various piers, wharfs, fleet moorings, and other facilities.
Equipment on board the ship must be designed for Mooring Service Types I, II and III,
as discussed in Chapter 3-1. Additional mooring hardware, such as specialized
padeyes, mooring chains, wire ropes, and lines, can be added for Mooring Service Type
IV situations.
TYPES OF MOORING EQUIPMENT. Basic shipboard mooring
7-2
equipment is summarized in Table 7-1. Additional information is provided in NAVSEA
NSTM Chapters 581, 582, 611 and 613; from Naval Sea Systems Command drawings
and publications; Cordage Institute, Cordage Institute Technical Manual; Guidelines for
Deepwater Port Single Point Mooring Design, Flory et al. (1977); The Choice Between
Nylon and Polyester for Large Marine Ropes, Flory et al. (1988); A Method of Predicting
Rope Life and Residual Strength, Flory et al. (1989); Fiber Ropes for Ocean
Techniques for Long Mooring Lines, Flory et al. (1992b); Modeling the Long-Term
Fatigue Performance of Fibre Ropes, Hearle et al. (1993); Oil Companies International
Marine Forum (OCIMF), Mooring Equipment Guidelines (1992); OCIMF
Recommendations for Equipment Employed in the Mooring of Ships at Single Point
Moorings (1993); OCIMF Prediction of Wind and Current Loads on VLCCs (1994);
OCIMF Single Point Mooring Maintenance and Operations Guide (1995); and Fatigue of
SPM Mooring Hawsers, Parsey (1982).
EQUIPMENT SPECIFICATION. Whenever possible, standard equipment
7-3
is used on board ships as mooring equipment. The specification, size, number, and
location of the equipment is selected to safely moor the ship. Some of the many factors
that need to be considered in equipment specification are weight, room required,
interaction with other systems, power requirements, reliability, maintenance, inspection,
and cost.
142
Previous Page
