Estimation of Impact Points for An Artillery Rocket Fitted with a Non-standard Fuze

Abstract

This paper describes a quick method to predict the impact point of an artillery rocket when it is equipped with a non-standard fuze and the firing tables and a fire control program supplied by the rocket manufacturer become no longer accurate. The method has been applied to a 122 mm artillery rocket that was originally designed to be used with MRV-U fuze but it was replaced by M423 fuze. Live fire tests of six rockets were conducted at a half range and a full range. The impact points were measured by a radar. From the test results, the average relative error of predicted range by the proposed method was –1.4% at half range and –3.3% at full range.