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Duties of an Officer on Watch (OOW) on the bridge The primary duties of an Officer on Watch are: (i) Watchkeeping, (ii) Navigation and (iii) GMDSS radio watchkeeping. Officer on Watch is a representative of the master and is primarily responsible at all times for the safe navigation of the ship and for complying with…
Definitions A Tropical Cyclone is also called as a Tropical Revolving Storm (TRS). It is defined as a roughly circular atmospheric vortex, originating in the tropics or sub tropics, wherein the winds which blow in converging spiral tracks reach or exceed gale force i.e. Beaufort Force 8 (34 – 40 Knots / 62 – 74…
Use of the Safety Depth and the Safety Contour in ECDIS Safety Depth: Value set by the mariner that is used by ECDIS to portray soundings as black if they are equal to or shoaler than the value and gray if they are deeper. Safety Contour Depth: Value set by the mariner that is used by ECDIS…
World Scale 1. World Scale is the “World Tanker Nominal Freight Scale” and is a schedule of freight rates applying to tankers carrying Oil in bulk. 2. Nominal means that the freight rates which world scale provides are intended solely as a standard of reference. 3. World Scale is available on a yearly subscription basis….
Rule 19 Conduct of vessels in restricted visibility (d) A vessel which detects by radar alone the presence of another vessel shall determine if a close-quarters situation is developing and/or risk of collision exists. If so, she shall take avoiding action in ample time, provided that when such action consists of an alteration of course,…
Rule 17 Action by stand-on vessel (a) (i) Where one of two vessels is to keep out of the way, the other shall keep her course and speed. (ii) The latter vessel may however take action to avoid collision by her maneuver alone, as soon as it becomes apparent to her that the vessel required…
Rule 15 Crossing situation When two power-driven vessels are crossing so as to involve risk of collision, the vessel which has the other on her own starboard side shall keep out of the way and shall, if circumstances of the case admit, avoid crossing ahead of the other vessel. Rule 16 Action by give-way vessel …
Rule 14 Head-on situation (a) When two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision each shall alter her course to starboard so that each shall pass on the port side of the other. Rule 14: HEAD-ON SITUATION Always alter course to starboard when you see…
Rule 13 Overtaking (a). Notwithstanding anything contained in the Rules of part B, sections I and II, any vessel overtaking any other shall keep out of the way of the vessel being overtaken. Rule 13: OVERTAKING Rule 13 has no exceptions; the overtaking vessel always keeps out of the way. If you are not sure…
Rule 10 Traffic separation schemes (a) This Rule applies to traffic separation schemes adopted by the Organization and does not relieve any vessel of her obligation under any other Rule. Nothing in Rule 10 is saying that sailing in a lane of a Traffic Separation Scheme you have any “priority” with cross traffic coming from…