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This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. Back or aft-most part of a ship or boat For other uses, see Stern (disambiguation). Detailed schematic of an elliptical or "fantail" stern The flat transom stern of the cargo ship Sichem Princess Marie-Chantal The stern is the back or aft -most part of a ship or boat, technically defined ...
Belowdecks: inside or into a ship, or down to a lower deck. [13] Bilge: the underwater part of a ship between the flat of the bottom and the vertical topsides [14] 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]
Vertical transom and stern of a modern cargo ship. In some boats and ships, a transom is the aft transverse surface of the hull that forms the stern of a vessel. Historically, they are a development from the canoe stern (or "double-ender") wherein which both bow and stern are pointed. Transoms add both strength and width to the stern.
Thus the poop deck is technically a stern deck, which in sailing ships was usually elevated as the roof of the stern or "after" cabin, also known as the "poop cabin" (or simply the poop [2]). On sailing ships, the helmsman would steer the craft from the quarterdeck , immediately in front of the poop deck.
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 ...
With both inboards and stern drives there is a fire and explosion hazard from gasoline fuel vapors within the engine compartment. Typically these boats must run a blower for several minutes prior to starting the engine, and when idling or moving below cruise speed. The blower exchanges the air within the engine compartment with fresh outside air.
Graphical representation of the dimensions used to describe a ship. Length between perpendiculars (often abbreviated as p/p, p.p., pp, LPP, LBP or Length BPP) is the length of a ship along the summer load line from the forward surface of the stem, or main bow perpendicular member, to the after surface of the sternpost, or main stern perpendicular member.
Deadwood is the lower part of a ship's stem or stern. Deadwood (Labelled "3") Starboard view of rudder, sternpost, and deadwood, showing chains that prevent dredge cable from snagging between rudder and sternpost