So did the XB-70 and SR-71, but you didn’t have replace the engines every time you punched the throttle...
Oh, and they did it in the 1960s.
ah the good old 60s, the peak of American Engineering. We put real spacecraft on Mars and found life (exotic chemistry is what it was called), we put men on the moon, we built those giant Valkrye Bombers that could fly mach3. Those were some bad ass times all right. oh yeah and we build little Davy Crocketts too.
But nowadays we no longer lead the world, we have to hope others do what needs to be done. Hopefully Russia will start crushing moslum butt along the same time the Israelis start it up.