It is clearly a ducted fan. All the sources which aren't fooled by Coanda's lies about fuel being injected into the duct describe it as just that, but all these sources have been removed from the article(How's that for balance?). What's worse is that even that fanatical booster of Coanda's spurious claims, Antoniu, admits that the display object at the 1910 airshow wasn't 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 Coanda's jet claims. The argument goes like this: We assume he built the world's first jet, so since the display wasn't even airworthy he must have rebuilt it into a jet(even 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.)