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Port and starboard. Port and starboard are nautical terms for watercraft, aircraft and spacecraft, referring respectively to the left and right sides of the vessel, when aboard and facing the bow (front). Vessels with bilateral symmetry have left and right halves which are mirror images of each other. One asymmetric feature is where access to a ...
A lateral buoy, lateral post or lateral mark, as defined by the International Association of Marine Aids to Navigation and Lighthouse Authorities, is a sea mark used in maritime pilotage to indicate the edge of a channel . Each mark indicates the edge of the safe water channel in terms of port (left-hand) or starboard (right-hand).
Starboard: the right side of the ship, when facing forward (opposite of "port"). [ 1] 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.
A pitch motion is an up-or-down movement of the bow and stern of the ship. The longitudinal/X axis, or roll axis, is an imaginary line running horizontally through the length of the ship, through its centre of mass, and parallel to the waterline. A roll motion is a side-to-side or port-starboard tilting motion of the superstructure around this ...
International maritime signal flags. International maritime signal flags are various flags used to communicate with ships. The principal system of flags and associated codes is the International Code of Signals. [ 1] Various navies have flag systems with additional flags and codes, and other flags are used in special uses, or have historical ...
"Hard on port/starboard" (or "port/starboard pressure") The rowers on that side of the boat must row harder (and the opposite side must row slightly easier) in order to facilitate a sharper turn. "Heads" or "Heads Up" Off the water, a shout to alert others to watch out for a boat being carried. "to Heads, ready, up"
Maneuvering thruster. Manoeuvering thrusters ( bow thrusters and stern thrusters) are transversal propulsion devices built into or mounted to either the bow or stern (front or back, respectively) of a ship or boat to make it more manoeuvrable. Bow thrusters make docking easier, since they allow the captain to turn the vessel to port or ...
Bearing (navigation) A standard Brunton compass, used commonly by geologists and surveyors to obtain a bearing in the field. In navigation, bearing or azimuth is the horizontal angle between the direction of an object and north or another object. The angle value can be specified in various angular units, such as degrees, mils, or grad.