The combination between unmanned ground vehicle and unmanned Ariel vehicle has become a matter of discussion lately in the field of robotics. This paper proposes a theoretical design of an unmanned vehicle with dimensions of (370 X 367 X 318 mm) which can fly as aerial vehicle and move on the ground, so it is considered unmanned ground vehicle as well. Subsequently, hybrid design is appropriate for following disaster robot because of the harsh environment. This investigation comprises literature review on some previous works in this regards along with the conception of the vehicle is argued in details with 3 D drawings. Furthermore, some calculations of the drag, lift forces and power consumption are performed. Finally, MATLAB plots are extracted to give an indication of the displacement response of the automobile in both X-Y axes.