Flight Simulation Using Graphical User Interface

Graphical User Interface for flight simulation of aircraft is developed to analyze the change in motion variables with respect to various longitudinal, lateral and directional control inputs. Effects of stability and control derivatives on motion variables are also studied using Graphical User Interface. Firstly, Non-linear six degrees of freedom equations of motion of airplane dynamics are solved using RungeKutta 4 order method. Secondly, Graphical User Interface is developed in order to make the program more user friendly and easily accessible. Programs for solving non-linear differential equations and Graphical User Interface are written in the MATLAB R2012b. The advantages of using Graphical User Interface for flight simulation are that the user can change the initial conditions of all motion variables, control inputs and corresponding response of the aircraft can be analyzed. With the developed Graphical User Interface, user having no prior knowledge of programming can simulate flight trajectory for any initial conditions and control inputs. The time response of flight variable and effect of stability and control derivatives on the flight response are presented graphically and discussed in the paper. The paper briefly describes the flight dynamics, mathematical model, Initial flight data, the Graphical User Interface and discusses observations on one of the control input under simulation.