NASA tested this in an airplane, wing skin was full of tiny holes, the turbine sucked air through it, in an attempt to control boundary layer. When I retrieve the info, I'll let you know. Blessings +Or, you could install thousands of tiny venturi that try to suck air back into the airframe.
=some scatch ? (for better understanding)...The driving mechanism for the circular motion
The fan axis would move in a circular orbit to create a rigid flapping circular wing duct in accordance with the Pseudo-Ornithipter theory of reference #7 (NASA CR-2315. 1972) of the first Jerzy Wolf report reference in post # 68 above. In other words convert the linear motion of the Trampofoil to a radial motion of a ring wing.=some scatch ? (for better understanding)...
BTW=simple,practical methode of man powered weavy fly (confirmed in 1977)=
For further clarification:=weavy,allmost sinusoidal fly...
=NO circular motion !
-iff we want to involve superefficiency oscillating thrusters we should work on the base-cant finde...?