Originally Posted by PBL
Do you think it is physically possible to lift an aircraft by blowing the wing from its own engines?
The schemes you propose in your last post could work in principle but are blatantly inefficient.
I'm intrigued by another question of yours, but am not sure that I understand it:
How do you then explain the function of wind tunnels?
As I see it, the function of wind tunnels is to provide wind (moving air) in a laboratory environment. You can place (models of) various objects (buildings, cars, bridges, cyclists, aeroplanes, pitot tubes, etc.) in the tunnel to study the flow around them by various visualization techniques, or to measure the forces acting on them, or the pressures on their surfaces. What more needs to be explained?
regards,
HN39