1988•Medical Entomology and ZoologyRequires access

HANDLING OF A VLCC BY TWO TUGS IN SHALLOW WATER

Omar M. Khattab

Abstract

The mathematical model of ship handling in confined waters has been extended to include the effect of two tractor-type tugs. This extended mathematical model was employed to investigate different towing arrangements of a 150,000 dwt tanker in shallow water at different wind speeds and directions in both full load and ballast conditions. Two towing arrangements were considered and a parametric study was carried out to calculate the maximum value of the towing vector diagram.

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Key concepts: Towing, Marine engineering, Waves and shallow water, Parametric statistics, Ballast, Engineering, Environmental science, Geology