## 1 Introduction  
Multicopter rotorcraft unmanned aerial vehicles (UAVs) are less susceptible to turbulence as compared with similar-sized fixed wing aircraft. Among the rotorcraft, the quadcopter is the most commonly used UAV, because of its mechanical simplicity and performance [1; 2; 3]. Of late, the applications of quadcopter UAVs, i.e., drones are increasing dramatically due to less risk and more benefits to the operators and users in the Earth's atmosphere. A literature review revealed that the application of drones with improved payload capability for high-endurance planetary exploration has been emerging in aerospace industries worldwide owing to the fact that a drone can map a larger planet area than a rover at a resolution far better than the existing satellites or orbiters [4; 5]. It is well known that airborne platforms cover much larger distances in a single mission than a rover and can transmit high-resolution images of very rocky or steep terrain better than state-of-the-art orbiting spacecraft. Orbiters extend the facility to map large areas for a longer period of time with restricted resolution. Landers can handle the planet's surface and atmospheric sampling but are limited to the close vicinity of the landing site. The mobility of the airborne platform is a major concern. To overcome these restrictions of orbiters and landers, we have proposed MR simulation of a high-endurance quadcopter UAV with dual-head electromagnetic propulsion (EMP) devices to maneuver to interesting sites lucatively for a longer duration through the prescribed trajectory. A literature review revealed that there are eight listed planets and more than 160 moons known to us in the solar system. Among the planets, it has been reported that Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have noteworthy atmospheres. The largest moon of Saturn, namely Titan, has been identified to have a dense atmosphere for facilitating the mobility of the airborne platforms. Over the decades, Mars has been one of the fascinating planets for scientific exploration. Flying a drone in the environment of Mars presents a major challenge, mainly because of the atmospheric characteristics of Mars. It has been reported that the density of the atmosphere of Mars is extremely low in the order of 1/70 as compared with that on Earth's surface [6], which demands the high-speed rotor to generate sufficient lift at a low Reynolds number. The speed of sound on Mars is approximately 20% less as compared with that on Earth [6], which creates the high Mach number flows. At this atmospheric condition, designing an airborne platform for planet exploration is a challenging task. In this paper, we proposed a viable option of a new generation quadcopter UAV integrated with lightweight feedback-controlled dual-head EMP devices which achieves the variable-speed spinning rotors to obtain a desirable lift with an efficient guidance, navigation, and control system, in accordance with local atmospheric properties, for high-endurance Earth and other planetary explorations with the aid of MR simulation to meet the flight path demands of the mission. Although many studies have been carried out on the design and development of multicopter rotorcraft from a different perspective, a limited number of studies have been carried out on MR simulation based on a quadcopter UAV and an X-Plane flight simulator [7; 8; 9]. In quadcopters, two motors rotate in a clockwise (CW) direction, and the remaining two motors rotate in a counterclockwise (CCW) direction, which produce zero angular momentum. In order to control the yaw, where the copter turns left and right, either the CW or CCW propellers are required to speed up or slow down to cause angular momentum to turn the copter. Quadcopters are currently used in agricultural, scientific, and commercial fields, including the military. The quadcopter works according to the speed of each rotor. Flight controller hardware is the head of any UAV, including the quadcopter.