Course (navigation)

In navigation, an object's course is the direction over the ground along which the object is currently moving.

Course, track, route and heading

The line connecting the object's consecutive positions on the ground is referred to as the ground track. The track the object was intended to follow is called the route. For ships and aircraft, the route is represented by the great circle line that connects the previous waypoint with the next waypoint. The responsibility of a navigator is to make the track coincide as much as possible with the route. The direction of the route is called the route course. "Course" exceptionally, and arguably erroneously, may also refer to the route, such as in a course deviation indicator, in which case it no longer constitutes an angle but rather a line. The direction of the great circle line that runs from the current position to the next waypoint is called the course to steer, or the bearing to that waypoint. The tracking angle is the angle between the course to steer and the course. The heading is the direction to which the "nose" of the object is pointing, its orientation.

Navigation

Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another. The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation.

It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks. All navigational techniques involve locating the navigator's position compared to known locations or patterns.

Navigation, in a broader sense, can refer to any skill or study that involves the determination of position and direction. In this sense, navigation includes orienteering and pedestrian navigation. For information about different navigation strategies that people use, visit human navigation.

History

In the European medieval period, navigation was considered part of the set of seven mechanical arts, none of which were used for long voyages across open ocean. Polynesian navigation is probably the earliest form of open ocean navigation, though it was based on memory and observation rather than on scientific methods or instruments. Early Pacific Polynesians used the motion of stars, weather, the position of certain wildlife species, or the size of waves to find the path from one island to another.

Navigation (album)

Navigation is the debut album by Irish Sonny Condell's band Radar and was released in May 2005

Track listing

All songs written and composed by Sonny Condell except where noted. 

Personnel

Release history

References

Navigation (disambiguation)

Navigation is the theory and practice of navigating, especially the charting of a course for a ship, aircraft, or spaceship.

Navigation may also refer to:

See also

Course

Course can refer to:

Course (sail)

In sailing, a course is the lowermost sail on a mast.

This term is used predominantly in the plural to describe the lowest sails on a square rigged vessel, i.e., a ship's courses would be the foresail, mainsail, and, on the rare occasions in which one is shipped, mizzen.Gaff-rigged vessels may use the term (for the lowest sail rigged aft of each mast), but are more likely to refer simply to a mainsail, foresail, etc. A Bermuda- or lateen-rigged yacht, whether sloop, cutter, ketch or yawl, would not usually be described as having a course.

References

Course (architecture)

A course is a continuous horizontal layer of similarly-sized building material one unit high, usually in a wall. The term is almost always used in conjunction with unit masonry such as brick, cut stone, or concrete masonry units ("concrete block").

Styles

Stretcher – The typical course style, masonry units are laid with their head (smallest surface) viewed from a side cross-section and the long, narrow sides forming the bulk of the visible course.

Header – Heads form the visible course and the long, narrow dimension viewed from a side cross-section. This is often used to interlock a double wall (two adjacent wythes).
Rowlock – The long narrow sides are top and bottom; the heads visible. Single course. Above lintels. Between string courses. Occasionally the topmost course.
Soldier – Used mainly for decorative purposes as its upright nature does not lend itself to the compressive strength of a masonry unit and tends towards inward or outward lean (where mortar is used) or stress in successive courses. The long, thin sides are visible; the heads are top and bottom.
Sailor (rare) – Decorative, upright, weak and heat-permeable: The long thin sides are viewed from a side-cross section; the heads are top and bottom.
Shiner (rare) – Decorative, weak and heat-permeable. Long thin sides are top and bottom; the heads are viewed from a side cross-section.