observer-target range
Look at other dictionaries:
range finder — any of various instruments for determining the distance of a target or object from an observer, or from a gun, camera, etc.: also rangefinder n … English World dictionary
range finder — any of various instruments for determining the distance from the observer to a particular object, as for sighting a gun or adjusting the focus of a camera. Also, rangefinder. [1870 75] * * * Instrument used to measure the distance from the… … Universalium
range finder — noun a measuring instrument (acoustic or optical or electronic) for finding the distance of an object • Syn: ↑rangefinder • Hypernyms: ↑measuring instrument, ↑measuring system, ↑measuring device * * * noun 1 … Useful english dictionary
target of opportunity — A target visible to a surface or air sensor or observer, which is within range of available weapons and against which fire has not been scheduled or requested. See also target … Military dictionary
Artillery observer — An artillery observer is a soldier responsible for directing artillery fire and close air support (ground attack by aircraft) onto enemy positions. Because artillery is an indirect fire weapon system, the guns are rarely in line of sight of their … Wikipedia
Long Range Surveillance — Long Range Surveillance, or LRS (pronounced lurse ) units (LRSU S), are specially employed elite surveillance units of the United States Army that are utilized by Military Intelligence (Example: 313th Military Intelligence Battalion, 82nd… … Wikipedia
Mathematical discussion of rangekeeping — In naval gunnery, when long range guns became available, an enemy ship would move some distance after the shells were fired. It became necessary to figure out where the enemy ship, the target, was going to be when the shells arrived. The process… … Wikipedia
Chevrolet Volt — Manufacturer Chevrolet division of General Motors Also called Holden Volt Opel Ampera Vauxhall Ampera … Wikipedia
Parallax — For other uses, see Parallax (disambiguation). A simplified illustration of the parallax of an object against a distant background due to a perspective shift. When viewed from Viewpoint A , the object appears to be in front of the blue square.… … Wikipedia
Iowa class battleship — The Iowa class battleships were a class of six fast battleships ordered by the United States Navy in 1939 and 1940 to escort the Fast Carrier Task Forces that would operate in the Pacific Theater of World War II. Four were completed in the early… … Wikipedia
