The SXT-428 is an Air Launch system for space transportation from Eath to Orbit. First stage - subsonic carrier aircraft, BWB design. Second stage - space shuttle with two rocket engine, classical bell nozzle.
I love the wing tips. Supposedly those are used to disperse vortexes that the wings create. I'm a little surprised by the flaps being used though. Normally, those would be used for breaking purposes, which is contrary to the concept of piggybacking the shuttle.
Love the surrealistic sky and the stylized border/signature box. Very cool concept overall.
hmmmmmmmmmmm... I don't know. But, as you say, "let's imagine"
To explain: I agree flaps (and elevators, ailerons, and spoilers) would be used to control their decent on glidepath. I am just wondering why the shuttle is still piggybacked onboard. I would think the mother vessel would only be used for taking the shuttle up, but "for coming back down too"??? Scary! However, I get too wrapped up in trying to make sense out of what is just a creative, spot of fun. It looks cool, interesting and creatively done, that should be enough.