Have I missed something here?
Unless I have completely missed the point here (which is not impossible due to the amount of posts) then the said aircraft would be effectively stationary with respect to both the ground and the air as it is actually not moving - just overcoming the speed of the conveyor and the drag of the gear?
I thought that one of the basic principles we all knew was that for an aircraft to fly we need lift, which is created by airflow moving over wings i.e you need airspeed.
No movement through the air = no airspeed = no air moving over wings = NO FLIGHT
I'll grab another beer!