When is a vessel overtaking

Corrective helm is necessary. Variation of pressures occurs due to the relative positions, sizes and speeds of the two vessels during overtaking.

This will enable them in identifying dangerous hydrodynamic interactions while executing a maneuver in an overtaking situation. One should also remember that the shallow water effects and bank effect may also be present in addition to the inter-ship interactive forces. Ships, in general, must remain in the centre of the channel depth wise. Failure to do so, could expose either ship to bank effect, leading to a sheer across the path of the other ship or grounding subsequently. Speed should be planned to be low to reduce the interactive forces.

You may also visit my youtube videos captsschaudhari. Skip to content What is Overtaking? Share this: Twitter Facebook. Like this: Like Loading Leave a Reply Cancel reply. Loading Comments Email Required Name Required Website. Charleston , a foot containership, is outbound on a west-southwesterly course making 20 knots.

Houston , a foot petroleum product carrier, is outbound on a westerly course making 12 knots. Houston is 22 nm southwest of Charleston when Charleston first begins to track it on radar, but Charleston has not seen it visually at that time.

The situation continues to develop and Houston is 16 nm southwest of Charleston when Charleston is able to make out its green sidelight and white masthead lights. By the time the vessels are eight miles from each other, neither vessel has altered course or speed and there is a zero-nm closest point of approach.

At this point, the vessels converse on VHF radio and it becomes apparent that there is a disagreement between them as to the status of Charleston. Houston believes that Charleston started out as an overtaking vessel, that a subsequent change in bearing between the two vessels cannot make it a crossing vessel, that Charleston is the give-way vessel and that Charleston should alter course or speed to keep out of the way of Houston.

Charleston believes that Houston , although stating the applicable rule correctly, has misapplied the rule to the situation and its analysis is flawed. Charleston has no doubt that this is a crossing situation, that Houston is the give-way vessel and that Houston should alter course or speed to keep out of the way of Charleston. How should this encounter, which one vessel sees as an overtaking situation and the other vessel sees as a crossing situation, be resolved?

The rule does not require the overtaking vessel to maneuver in any particular manner, generally allowing an overtaking vessel to pass on either side of the overtaken vessel. However, care should be exercised by the overtaking vessel to maintain an appropriate distance off the overtaken vessel to prevent the effects of interaction, as well as to ensure that it is well clear of the overtaken vessel before any subsequent alteration of course ahead of the overtaken vessel.

Thus, there are clear tests that can be employed, which are intended to eliminate any doubt as to whether a vessel is overtaking or crossing. Such information is anonymous and is not meant to personally identify you. Boater's Academy websites also use cookies, which are files that are placed on your computer when you visit Boater's Academy websites. The purpose of cookies includes identifying you as a unique user of Boater's Academy websites and services, tailoring your experience on Boater's Academy websites, and enabling third-parties such as Google to optimize and serve advertisements to you.

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We reserve the right to change this User Agreement from time to time without notice. Can you drive a boat at night? Driving at night can prove to be harder than during the day, but it's by no means an impossible task, and the same goes with boating at night. Cruising at night means your vision is going to be limited and things can jump out at you while out on the water. What does it mean when you are the stand on vessel in an overtaking situation? Overtaking: The vessel that wishes to overtake is the Give-Way Vessel.

Is a boat under power always a stand on boat? What are the 4 sides of a boat called? Now let's learn the words for the front, rear, left and right sides of the boat. The front of a boat is called the bow, while the rear of a boat is called the stern.

When looking towards the bow, the left-hand side of the boat is the port side. Why is the helm of a boat on the starboard side? On small boats, placing the helm on the starboard side allows the controls to be safely out of the way most people are right-handed. What do ship horn blasts mean?