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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.
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.
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 motion is an up-or-down movement of the bow and stern of the ship.
Stern: the rear of a ship (opposite of "bow"). [1] Topside: the top portion of the outer surface of a ship on each side above the waterline. [1] Underdeck: a lower deck of a ship. [21] Yardarm: an end of a yard spar below a sail. Waterline: where the water surface meets the ship's hull. Weather: side or direction from which wind blows (same as ...
The bow of a stern-coxed boat is subject to the greatest amount of pitching, requiring the bow pair to be adaptable and quick in their movements. Boats that are bow coxed rely on communication between the bow and the cox - as the cox cannot see boats coming up from behind. The bow pair tend to be the smallest of the rowers in the boat.
A sharp bow on a conventional hull form would produce waves and low drag like a bulbous bow, but waves coming from the side would strike it harder. The blunt bulbous bow also produces higher pressure in a large region in front, making the bow wave start earlier. [6] The addition of a bulb to a ship's hull increases its overall wetted area.
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 ...
Dimensions of a hull The prominent sheer in the bow of the battleship USS New Jersey View of a corridor on the RMS Queen Mary, visibly showing the sheer. Notice the upward curve as the corridor goes on. The sheer is a measure of longitudinal main deck curvature in naval architecture. The sheer forward is usually twice that aft.