Imaginactive has come up with an updated hypersonic jet concept designed to make our world a lot smaller. Named Paradoxal, the aircraft would fly at the edge of space, allowing it to cut trips from Los Angeles to Sydney down to 3 hours, Imaginactive said. Today, that trip takes commercial airlines more than 14 hours to complete. Passengers would sit in one large, theatre-like cabin rather than a narrow tube as they do in today’s commercial airliners.I thought that the whole point of ramjets was that they had no moving parts, but times change.
Paradoxal would be powered by two rotary ramjet engines, which would power the flying wing to around 60,000 feet, reaching speeds of around Mach 3. At that point, liquid oxygen would be injected into the gas port converting the engines to rockets. The rockets would take Paradoxal at supersonic speeds to an altitude of about 40 miles where it would fly a sub-orbital parabolic trajectory at hypersonic speeds.
I'd be surprised if such a thing flew before 2050, which is why I'm not planning to fly in one.