The method of definition of air target destruction coordinate and circular law is given taking into account mechanical and inflammatory actions of the fragment of a missile warhead. Only actions of the fragment units for vulnerable units of air target are considered. By the nature of the vulnerability the targets do not accumulate damage within units, and between them. This allows determining the probability of destroying an air target, depending on the firing error indicator by a missile. The obtain expressions and calculations are given.
target destruction coordinate law, kill probability of a target vulnerable units by a fragment, expectation of the number of fragments, the target destruction circular law