Thrust Control 4

 

So, were you able to identify the one design flaw in these four images? 

If you have read  other parts of this blog you should have been able to think through the design concepts and identify the one main flaw. If not, perhaps re-reading the parts on BCP will help you. The main flaw is not the design but the usage of this concept of flight controls.

Hint: Watch where you are going.