It is clearly a ducted fan All the sources which arent fooled by Coandas lies about fuel being injected into the duct describe it as just that but all these sources have been removed from the articleHows that for balance Whats worse is that even that fanatical booster of Coandas spurious claims Antoniu admits that the display object at the  airshow wasnt really a plane at all but a mockup that was obviously incapable of flight Incredibly that admission appears in the article as an argument in favor of Coandas jet claims The argument goes like this We assume he built the worlds first jet so since the display wasnt even airworthy he must have rebuilt it into a jeteven though he never patented these innovations or even told anyone about them until jets had become commonplace and even though the only evidence he ever presented was an obviously forged document