>>1813247>It would be far more economical to retrofit an SR-71 with a passenger cabin.>>1815078>Something like an SR-71 or anything else similar could also work.I'm not sure you realize how small the SR-71/YF-12 are. And almost the entire center fuselage is taken up by fuel tanks anyway. Yes, you could sacrifice some range to cram bodies in there, but I don't think they'd be very happy about it.