Originally Posted by jhwisner 
Yeah I guess something that looks exactly like a jumbo jet or a flying saucer were the only choices. It's not like they could have gone with something that looks more like a space shuttle or say any of these five dozen iterations of conceptual designs for reusable space-planes that don't look like 747s.
Some of the images in that search are space jets…
Oh and the Consortium doesn't look like a Boeing 747. The shape is based on the Airbus a380.