# Research Civil Aircraft Model (RCAM) With 6 Degrees Of Freedom Dynamic Method Using MATLAB

• Aulia Widya Prameswari Universitas Nurtanio, Bandung, Indonesia
• Denden Mohamad Ariffin Prodi Teknik Aeronautika Pertahanan, Akademi Angkatan Udara, Yogyakarta, Indonesia
Keywords: MATLAB, 6 Degree of Freedom, Simulink, 3D Animation, Surface Deflection

### Abstract

The Aircraft Model is an attempt to create or simulate an actual aircraft and this model can be called the Research Civil Aircraft Model (RCAM), which is a twin-engine civil aircraft model developed by the Group for Aeronautical Research and Technology in Europe (GARTEUR). This aircraft model is similar to the Boeing 757-200. Research Civil Aircraft Model created using 6 degrees of freedom. 6 degrees of freedom consist of 3 translations, namely 3 degrees for Cartesian coordinates on the axis (x,y,z) and 3 rotations, namely 3 degrees (pitch, roll, and yaw) which are used to control surface deflection and throttle position. To create a model, parameters are needed, namely the parameters of the mass of the aircraft and the parameters of the aero chord and also the CoG (Center of Gravity) of an aircraft. The algorithm entered comes from control limits/Saturation, Intermediate Variables, Force Coefficients, Moment Coefficients, Propulsion Effects, Gravity Effects until finally simulated using "Simulink" in MATLAB. In order to produce not only graphics, animation is needed to see the attitude of the aircraft, so 3D Animation is used in MATLAB. The results of this civil aircraft modeling are to see a simulation of the stability of the ailerons, rudders, elevators, and throttles when the plane is flying. The results can vary because in 3D Animation, the plane can be controlled from the plane's attitude when tilted right or left and also when the plane rolls. With this, it is hoped that the simulation can be effective in seeing the actual results when the plane is flying and can also be used as a simulator before the plane takes off.

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