Note1: sorry for the rough detail of the plane, it is made without using any modNote2: the power system is redesigned. Since the last version is able to achieve 1 mach+ which is not ideal for a heavy aircraft, in this version only 4/8 engines of the plane are controlled by throttle, while the other 4/8 engines of the plane are too be activated by air group 2 and controlled by the VTOL control panel for assisting take off. To turn on the engines, activated group 2 and push the VTOL panel up. Note3: the air brake is activated by pulling the VTOL panel down Note4: the max landing weight of the plane is to be determined, it is nearly impossible to be controlled at low speed and landed with its take off weight