The increase of oil exploration and production in a given ocean area may put new requirements on the design of mooring systems for the floating units. It is necessary to simplify the underwater layout through the reduction of the lines horizontal span and to allow smaller distance between the production units. In this context the utilisation of taut-leg mooring system seems to be very attractive. The main object of the this paper is to present a comparison between taut-leg and conventional mooring systems in terms of total unit offset and horizontal span.
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