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9, 10 - Effects of crosswind and tidal current, causing the vessel's track to differ from its heading. A, B - Vessel's track. TVMDC,AW is a mnemonic for converting from true heading, to magnetic and compass headings. TVMDC is a mnemonic initialism for true heading, variation, magnetic heading, deviation, compass heading, add westerly. The most ...
Measured in this way, a bearing is referred to as an azimuth by the US Army but not by armies in other English speaking nations, which use the term bearing. [6] If the reference direction is north (either true north, magnetic north, or grid north), the bearing is termed an absolute bearing. In a contemporary land navigation context, true ...
Farther aft than the beam; a relative bearing of greater than 90 degrees from the bow; e.g. "two points abaft the beam, starboard side" would describe "an object lying 22.5 degrees toward the rear of the ship, as measured clockwise from a perpendicular line from the right side, center, of the ship, toward the horizon". [4] abandon ship
A navigator determines the bearing (the compass direction from the craft's current position) of the next waypoint. Because water currents or wind can cause a craft to drift off course, a navigator sets a course to steer that compensates for drift. The helmsman or pilot points the craft on a heading that corresponds to the course to steer. If ...
Also ship's magazine. The ammunition storage area aboard a warship. magnetic bearing An absolute bearing using magnetic north. magnetic north The direction towards the North Magnetic Pole. Varies slowly over time. maiden voyage The first voyage of a ship in its intended role, i.e. excluding trial trips. Maierform bow A V-shaped bow introduced in the late 1920s which allowed a ship to maintain ...
The turning rotation of a vessel about its vertical/Z axis. An offset or deviation from normal on this axis is referred to as deviation or set. This is referred to as the heading of the boat relative to a magnetic compass (or true heading if referenced to the true north pole); it also affects the bearing.
Abaft (preposition): at or toward the stern of a ship, or further back from a location, e.g. "the mizzenmast is abaft the mainmast". [1]Aboard: onto or within a ship, or in a group.
Glossary of nautical terms may refer to: Glossary of nautical terms (A–L) Glossary of nautical terms (M–Z) This page was last edited on 21 December 2024 ...