No PNA, Capítulo 13, um pouco antes de falar dos estudos do Esso Osaka, há uma passagem que fala do “angular velocity” in deep e shallow waters, afirmando o seguinte:
“Taking angular velocity in deep water as 100 percent, the shallow water rates are generally:
(a) In water depth 2.5 times ship draft, 90 to 95 percent ( that is, roughly 5 to 10 percent increase in turning diameter)
(b) In water depth 1.25 times ship draft, 50 to 60 percent ( that is, roughly 60 to 100 percent increase in turning diameter)”
Esse “angular velocity” é o mesmo que Rate of Turn? Ou seja, o rate of turn diminui em águas rasas?
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