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Error of the day

From The Great War 1914-1918

Error of the day: A term used in artillery practice to denote the amount of correction which must be made in the elevation of a big gim on account of the temperature of the atmosphere, the pressure of the barometer and the quality of the light. These calculations have been brought to such a pitch of perfection that the amount of error requiring correction after a trial shot at a distance of 6,000 yards may not amount to a few feet. [1]

References / notes

  1. Various contributors (1914). The War Book-of-Facts. 2nd Edition. A.W. Shaw Company, London p.141.
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