Solving Lanchester-Type Equations for “Modern Warfare” with Variable Coefficients

James G. Taylor
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James G. Taylor: Naval Postgraduate School, Monterey, California

Operations Research, 1974, vol. 22, issue 4, 756-770

Abstract: This paper develops solutions to extensions of F. W. Lanchester's classical equations of “modern warfare” (frequently referred to as aimed-fire equations) for combat between two homogeneous forces. In these extensions the lethality of the fire (as expressed by the Lanchester attrition-rate coefficient) depends on time. When the dependence is arbitrary, the solution is an infinite series of recursively related integrals; in special cases, more convenient representations (including representation in terms of tabulated functions) are available. Solutions are obtained in the following cases: (1) the lethality of each side's fire proportional to a power of time and both lethalities initially zero, and (2) the lethality of each side's fire linear with time, but only one side's lethality initially zero. The latter case models the constant-speed approach between forces whose weapons have different maximum effective ranges.

Date: 1974
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