constant bearing

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• Constant bearing, decreasing range — (CBDR) means that some object, usually another ship viewed from the deck or bridge of one s own ship, is getting closer but maintaining the same true bearing. If this continues, the objects will collide. Contents 1 Lack of visual clues 2 Relative …   Wikipedia

• line of constant bearing — In air navigation, a line from a fixed or a moving point to a moving object or a fixed point that retains a constant angular value with respect to a reference line. AB, A′B′, A″B″ = Lines of constant bearing …   Aviation dictionary

• Constant speed propeller — Cutaway constant speed propeller hub …   Wikipedia

• Bearing (mechanical) — A bearing is a device to allow constrained relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as… …   Wikipedia

• Bearing (navigation) — This article is about the navigational term. For other uses, see Bearing. A standard Brunton Geo compass, used commonly by geologists and surveyors to obtain a bearing in the field. In marine navigation, a bearing is the direction one object is… …   Wikipedia

• Constant term — In mathematics, a constant term is a term in an algebraic expression has a value that is constant or cannot change, because it does not contain any modifiable variables. For example, in the quadratic polynomial the 3 is a constant term. After… …   Wikipedia

• Constant-velocity joint — Rzeppa six ball CV joint Constant velocity joints (aka homokinetic or CV joints) allow a drive shaft to transmit power through a variable angle, at constant rotational speed, without an appreciable increase in friction or play. They are mainly… …   Wikipedia

• Constant Proportion Debt Obligation - CPDO — A type of synthetic collateralized debt instrument that is backed by a debt security index, such as an iTraxx index. CPDOs were first created by ABN AMRO in 2006, which sought to create a high interest bearing instrument that also contained the… …   Investment dictionary

• Magnetic bearing — A magnetic bearing A magnetic bearing is a bearing which supports a load using magnetic levitation. Magnetic bearings support moving machinery without physical contact, for example, they can levitate a rotating shaft and permit relative motion… …   Wikipedia

• CBDR — • constant bearing, decreasing range …   Maritime acronyms and abbreviations

• Scale (map) — The scale of a map is defined as the ratio of a distance on the map to the corresponding distance on the ground. If the region of the map is small enough for the curvature of the Earth to be neglected, then the scale may be taken as a constant… …   Wikipedia