I wonder if this aerospace thing is more space than aero. It (the silhouette) has an interesting asymmetry in it, which may mean something bulky under the belly, and it looks like it has relatively big slats. That could mean that it could be meant to carry something heavy from the ground, give it as high a speed as possible, launch it, and come back for the next.
Edit: Whoaa: Maybe I need to take another look. Thought it has four engines, but it may be only two. And maybe the "wing" that seemed to have "slats" was on the bulky belly thing. So maybe a booster that is returning back while the SST flies to its destination. Inventing things here
, do not know of anything that would do so…..
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