The maglev system is a technology that uses the repulsive force between magnets to float or levitate an object or vehicle. Maglev trains use electromagnets to counter the gravitational force of an object, so that the object can float in the air. With this technology, the resulting loss between the workpiece and the base can be eliminated. The technology used in this train is Electromagnetic Suspension (EMS). The research began by modeling the maglev system in the form of state space. Furthermore, the stability system model that has been built is analyzed. Finally, it is analyzed how the numerical simulation of an open loop without control is analyzed. The result of this research is that the floating system (maglev) is an unstable system if it is run in an open loop, so the maglev system requires sensors and controls in its operation.

The maglev system is a technology that uses the repulsive force between magnets to float or levitate an object or vehicle. Maglev trains use electromagnets to counter the gravitational force of an object, so that the object can float in the air. With this technology, the resulting loss between the workpiece and the base can be eliminated. The technology used in this train is Electromagnetic Suspension (EMS). The research began by modeling the maglev system in the form of state space. Furthermore, the stability system model that has been built is analyzed. Finally, it is analyzed how the numerical simulation of an open loop without control is analyzed. The result of this research is that the floating system (maglev) is an unstable system if it is run in an open loop, so the maglev system requires sensors and controls in its operation.

One platform that is currently highly developed as an air defense technology is the Unmanned Combat Aerial Vehicle (UCAV) which is a UAV system equipped with a weapon system or has combat capabilities. In this study, the UCAV concept was developed with the aim of having a stealth or low observability aspect by being shown to have a low Radar Cross Section (RCS) value. And in this paper the UCAV model developed is a generic UCAV configuration developed by the NATO STO/AVT-161 task group, namely SACCON UCAV. The SACCON UCAV is also goal-oriented typical of low observability with a combination of high agility and high Angle of Attack (AoA) capabilities. The results of the SACCON UCAV design were then analyzed by the RCS value using the SBR method using the Ansys HFSS software. And the results of the RCS calculation show that the SACCON UCAV model has a low RCS value and the RCS value can be reduced again by shaping the UCAV configuration.