Thanks gents for the F-93 posts !
So thus my quandry on this concept, as cool as it is.
Main inlet is probably not good for what it is supposed to do.
Per Dugger's study, external burning is cool for cruise. Vehicle
is not actually what I'd call slender, but it could be made that way.
I wouldn't expect acceleration capability from the external
burning, unless improvements have been made there, per Dugger.
But it is a concept, so in that light, it is a cool design and
perhaps a starting point to fix it's problems we discovered.
And you never know, if you think it's real, perhaps the correct
stuff wasn't seen. But as the security dudes would say, given
its state, it's plausible to deny it.
This all of course is my current opinion.
