In this paper the effect of icing forward on the maneuvering characteristics of a small offshore supply vessel hull form, which was used for acoustic surveys in the North Atlantic by the US Navy during the Cold War, is studied. Icing is well known to compromise the roll motion stability of vessels but its effect on maneuvering and specifically path stability is not as well known. Using available empirical formulas for maneuvering coefficients and steady turning ability the effect of icing on the path stability and steady turning ability of this vessel are approximately evaluated. The results show that icing does affect the maneuverability but more study is required to more precisely quantify this effect.

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