A statistical treatment of various classes of gunnery errors and the calculation of hit probability

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Final report. New York.: Cornell Aeronautical Laboratory, 1969. – 274 p.
Volume I of the report is a manual and presents, in simplified form, methods and examples of computing the hit capability of Naval Gun Systems through the use of tables, graphs and equations. The methods permit consideration of any correlations that may exist between successive rounds in a salvo. This volume, however, does not treat the problem of establishing the degree of correlation. Although the equations derived are general in nature, the tabular data appended provide estimates of achieving at least one hit per salvo in the special situation where the range and cross-range components of the error statistics arc equal and the targets arc nearly square or circular. There are techniques whereby non-equal components of error statistics may be converted to equivalent equal components; however their applicability to the problem at hand has not been examined and is considered beyond the scope of this study. Single shot hit probabilities may be derived from the case where the salvo size equals one. Expected number of hits on the target per salvo may be acquired by multiplying the single shot hit probability by the number of shots in the salvo, assuming there is no reason to believe that the single shot hit probability changes during the salvo. Whore this is not the case the salvo may be subdivided into intervals in which the single shot probability is essentially constant, the expected number of hits computed for each interval and the values totaled. Volume II of the report defines a program of analysis and testing which would provide, for any situation, estimates of the component error parameters required to enter the tabular data of Volume I.

Author(s): Helgert Hermann J.

Language: English
Commentary: 1722928
Tags: Военные дисциплины;Баллистика и динамика выстрела;Теория стрельбы