THE EFFECT OF THRUST FOR THE FFAR 70 MM ROCKET ON FLYING TRACT PERFORMANCE

Abstract

This research aims to analyze the influence of thrust on elevation angle, range, and altitude of the FFAR 70 MM rocket using three software: Working Model 2D, MATLAB Simulink, and analytical formula. The modeling is conducted by varying the thrust (2265 N, 3265 N, and 4265 N) and elevation angle (30° to 70°). The simulation results reveal significant differences among the three software.The results from Working Model 2D indicate that the optimal thrust is 4265 N with an optimal elevation angle of 30°. On the other hand, MATLAB Simulink shows that the optimal thrust and elevation angle are 4265 N and 50°. Furthermore, the simulation results demonstrate that as the thrust increases, the rocket's range becomes farther and its altitude becomes higher. A comparison between the simulation and experimental data shows that MATLAB Simulink's results approximate the experimental data with a range of approximately 7.869 km.