| Due to the development of the computer's capabilities and numerical analysis methods, the calculation of the trajectory of launching a rocket vehicle is possible instead of requiring an experiment.;The purpose of this study is to estimate the trajectory of launching a rocket vehicle by solving the equations of motion using the Runge-Kutta fourth order method.;The equations for solving trajectory problems can be derived from Newton's second law of motion. This is the initial value problem for ordinary differential equations which can be solved by the Runge-Kutta method.;The drag of the rocket vehicle is directly related to the equations of the rocket's trajectory. This study considers the Mach number, the Reynolds number, and launching angle in order to calculate the drag. These results can be applied to the vertical launching of a rocket vehicle. |
