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The bow (/ b aʊ /) is the forward part of the hull of a ship or boat, [1] the point that is usually most forward when the vessel is underway. The aft end of the boat is the stern. [2] Prow may be used as a synonym for bow or it may mean the forward-most part of the bow above the waterline.
Belowdecks: inside or into a ship, or down to a lower deck. [12] Bilge: the underwater part of a ship between the flat of the bottom and the vertical topsides [13] Bottom: the lowest part of the ship's hull. Bow: front of a ship (opposite of "stern") [1] Centerline or centreline: an imaginary, central line drawn from the bow to the stern. [1]
The port and starboard sides of the vessel always refer to the same portion of the vessel's structure, and do not depend on the position of someone aboard the vessel. The port side is the side to the left of an observer aboard the vessel and facing the bow, towards the direction the vessel is heading when underway in the forward direction. The ...
A "ram" bulbous bow curves upwards from the bottom, and has a "knuckle" if the top is higher than the juncture with the hull—the through-tunnels in the side are bow thrusters. [1] A bulbous bow is a streamlined flaring or protruding bulb at the bow (or front) of a ship just below the waterline.
Bow thrusters make docking easier, since they allow the captain to turn the vessel to port or starboard side, without using the main propulsion mechanism which requires some forward motion for turning; [1] The effectiveness of a thruster is curtailed by any forward motion due to the Coandă effect. [2]
The vertical/Z axis, or yaw axis, is an imaginary line running vertically through the ship and through its centre of mass. A yaw motion is a side-to side movement of the bow and stern of the ship. The transverse/Y axis, lateral axis, or pitch axis is an imaginary line running horizontally across the ship and through the centre of mass. A pitch ...
Amidships is the middle portion of the vessel in the fore and aft direction. Port is the left side of the vessel when facing the bow from on board. Starboard is the right side of the vessel when facing the bow from on board. Stern is the rear part of the hull.
The most forward and lowest curved part of the ship is the stem (not normally the extended part beyond the hull). The bow of the oil and chemical tanker Bro Elizabeth in dry dock in Brest, France. This ship does not have a stem. The stem is the most forward part of a boat or ship's bow [1] and is an extension of the keel itself. It is often ...