Let's assume a spherical chicken.... My take on this. The plane won't fly,... in theory. If you examine the forces required for flight, you only have two options, either 1. Lift from the wings 2. Vertical component of thrust from the engine. Examining item #1 and #2. 1. Lift can only be generated by airflow over the wings...period. On a windless day, if this plane remains completely motionless (assuming the conveyor system can react instantaneously to compensate for any forward motion from the engines), there will be no lift generated by the wings. 2. If the engine's thrust is directed completely horizontally, there will be no vertical component of this thrust to provide lift. Given these initial conditions, this plane will never lift off. But in reality, the engines' thrust is not 100% horizontal w.r.t. the ground. The nozzles are also capable of thrust vectoring. So if anything, this aircraft might do a aviation version of an 'endo' on the conveyor system...