When navigating in narrow channels the systems of water flow and water pressure will be considerably increased. The ship will thus push water ahead of her and the surface of the water will rise noticeably several ship's lengths ahead of the ship.Along the ship's side, water will flow back with higher velocity than in open water of the same depth and abaft of the ship, water will be pulled along in the direction the ship is sailing.If the ship sails in the centre line of the channel and if the channel is symmetrical about her she will not be exposed to a turning effect from the channel, … [Read more...]
Rule13 – Overtaking
Section II – Conduct of vessels in sight of one another Rule13 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.Meaning: It does not make a difference whether any ship ahead of the own vessel has permitted by signaling that overtaking may take place. As far as the Rules are concerned especially Rule 13, the overtaking vessel is duty bound to keep clear.b. A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more … [Read more...]