Flash spotting
[''Artillery Survey in the First World War''. Field Survey Association, 1971, Sir Lawrence Bragg, Major General A. H. Dowson, Lt Colonel H. H. Hemmings ] was a military method of detecting the position of enemy guns at long range where the gun could not be observed directly, and was developed during World War I. The flashes could be observed at night as reflections from the sky. The purpose was then to call up friendly guns to destroy the enemy guns' position. Theoretically this could be achieved by several observers spotting the flash from a particular gun and then plotting the intersection of the bearings.
This was extremely difficult with multiple guns firing since several observers could not be sure they were all looking at the same gun. The British solved this using a flashboard located at HQ fitted with a combination of buzzers and signal lights connected to the observers by telephone wires. Using this system, after a sequence of observations, all observers could be sure they were looking at the same gun flashing and its position determined by
triangulation
In trigonometry and geometry, triangulation is the process of determining the location of a point by forming triangles to the point from known points.
Applications
In surveying
Specifically in surveying, triangulation involves only angle me ...
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See also
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Counter-battery fire
Counter-battery fire (sometimes called counter-fire) is a battlefield tactic employed to defeat the enemy's indirect fire elements (multiple rocket launchers, artillery and mortars), including their target acquisition, as well as their command ...
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Artillery sound ranging
In land warfare, artillery sound ranging is a method of determining the coordinates of a hostile battery using data derived from the sound of its guns (or mortar or rockets) firing. The same methods can also be used to direct artillery fire at ...
References
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Artillery