ISSN 2083-6473
ISSN 2083-6481 (electronic version)




Associate Editor
Tomasz Neumann

Published by
TransNav, Faculty of Navigation
Gdynia Maritime University
3, John Paul II Avenue
81-345 Gdynia, POLAND
www http://www.transnav.eu
e-mail transnav@am.gdynia.pl
The Determination of a Minimum Critical Distance for Avoiding Action by a Stand-on Vessel as Permitted by Rule 17a) ii)
1 Gdynia Maritime University, Gdynia, Poland
ABSTRACT: In accordance with Rule 17a)ii) a stand-on vessel may take action to avoid collision by her manoeuvre alone, as soon as it becomes apparent to her that the vessel required to keep out of her way is not taking appropriate action in compliance with the Steering and Sailing Rules. Such an action to avoid collision must be taken in proper time. An OOW should know the minimum distance for taking avoiding action in every particular case of approaching vessels. The safe distance mainly depends of the relative bearing of an approaching vessel and her speed. In particular own vessel manoeuvrability should be taken into account. The safe minimum distance could be calculated in advance with an Excel calculation sheet. This paper presents a method for preparing a table of safe minimum distances to be used during a Navigational Watch.
Cockcroft, A.N. & Lameijer I.N.F. 2004. A guide to the Collision Avoidance Rules. Elsevier Butterworth-Heinemann, Oxford.
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Curtis Frye 2003 Mocrosoft Office Excel 2003 step by step (Polish translation by Kolczynski P.)
Rymarz W. 2004, Mi?dzynarodowe prawo drogi morskiej w zarysie (in Polish). Wydawnictwo Trademar, Gdynia.
Rymarz W. 2006. Międzynarodowe prawo drogi morskiej – obliczenia za pomocą arkusza kalkulacyjnego Excel manewrów zapobiegawczych zderzeniu zgodnie z prawidłem 17a)ii), Akademia Morska Gdynia (in Polish)
Citation note:
Rymarz E.W.: The Determination of a Minimum Critical Distance for Avoiding Action by a Stand-on Vessel as Permitted by Rule 17a) ii). TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 1, No. 1, pp. 63-68, 2007

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