The objective of the research is to analyze the external ballistic characteristics of middle-range rocket target with a constant thrust and varying rocket motor operating time. The main requirement is to achieve the rocket target with horizontal distance (range) of 20 km and vertical distance (altitude) of 10 km. The rocket motor to be used should be RM-12K designed and built by the Kaunas University of Technology, Institute of Defence technology. This motor can produce up to 12 kN thrust for 3.2 seconds. To achieve the goal, a computational model is designed and numerical modelling for ballistic analysis is carried out. In this research, two different configurations are used to achieve the requirement. In the first test, all four motors are ignited together for 3.2 seconds which produce 48 kN thrust force. In third configuration two motors are used for 3.2 seconds to produce 24 kN and after the burnout, the second two motor is ignited for 3.2 seconds. Comparative analysis of two different configuration shows that the requirement of 20 km range and 10 km altitude was realised by using two plus two motors for 6.4 seconds of operational time.
Replacing chemical propellant and using electric power that generate the muzzle power to propel the rocket is done since 1846. There were productive research conducted to achieve velocity of 2000-3000 m/s, which cannot achieved using conventional propellant. These velocities are capable of penetrating the armor vehicles and high-density materials. Research is conducted to increase the velocity and stealth technology to penetrate missile defense system. However, the advanced technology capable of detecting from small drone to high velocity missile. This research give the conceptual design of the two-staged missile capable penetrating the defense shield using only kinetic energy by unconventional propulsion system. One stage act as the prey to the incoming missile and other system enter the shield with its velocity higher than any other interceptor missile. This missile uses Lorentz force to propel the projectile towards the target.