It does raise the question when is a EDF become a ducted prop?
My Airbus A350 looks
like an EDF.[ATTACH=full]55854[/ATTACH]
But inside each scale Trent nacelle is a 3x3.5 4 blade prop!
To go back to Coanda. Was his plane really a turbo jet or an 'augmented' motor fan?
There is also some question as to whether it really 'flew' as such but it is nevertheless a tribute to the power he obtained from the motor and the design of his fan that in 1910 it achieved sufficient thrust to get the plane to a 'flying' speed.
Apparently Coanda was a bit of a bullshiner, he claimed his piston powered what ever it was, was meant to be a jet but a witness said the plane caught fire and crashed.
Who in their right mind would sit in a hot jet stream?
I believe rightly or wrongly, Coanda accidentally invented the jet engine when his piston powered ducted fan caught fire
I certainly don`t know enough to get into a debate about it and I don`t think anyone else but Coanda did
But what ever happened to Coanda sowed the seeds for the jet engine.