The concept has been demonstrated in aviation since the 1920s,with blown slots on wings,in Ludwig Prandtl's research.
There are STOL aircraft which use it today.
J.J.Cornish,III,chief aerodynamicist,Lockheed Aircraft,advocated its use in automobiles and a wind tunnel photo of a suction-slot sports car is in Paul Van Valkenburg's book,Race Car Engineering,you can see before and after smoke images of the technology in action.It IS remarkable!
So far the issue has been how to provide enough pump power for either blowing or suctioning the slots.Historically,the pump absorbs more energy than is saved with the slot.Not an issue with military aircraft.
Georgia Tech has had some limited success,has some patents,and continues research.
Knowing the thermodynamic limitations of this technology,Hucho suggested we take another look at the 1935 inflated boat tail.
