• cygnus@lemmy.ca
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    11 days ago

    Based on the renderings (as there are no actual photos of this thing, other than the blurry-ass pic of what appears to be a rocket taking off vertically) it’s nowhere near the size of a 747. It actually looks rather like an elongated SR-71, which makes me very skeptical that it can actually hit Mach 6.5 because ramjet engines have a hard limit due to something called “physics”. That fact, plus the rocket-like takeoff, are why I think this is more like the X-15 and can’t sustain its top speed for long.