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Supersonic Aerospace International (SAI), based in Nevada, USA, is developing a supersonic aircraft called Quiet Supersonic Transport (QSST). it’ll be ready for flight by 2014, and deliverable to customers by 2016. QSST (Quiet Supersonic Transport) could well be the future of high-speed passenger jets and the concept pictured above boasts some impressive figures. It promises to be 100 times quieter than the Concorde with a range of over 4000 nautical miles and a top speed of Mach 1.8, or 1,188 miles per hour. Check out the official site for More Information.
I don't know if you are including commercial spacecraft in that question, but the Virgin Galactic craft will travel well over Mach 2 though I couldn't find the exact speed. But I can estimate it.
Originally posted by Stop-loss!
I was wondering if anyone knows of any aircraft that is currently being made for public transportation that can reach speeds of more then Mach 2 safely with efficiency and at a low cost.
Whether £121,000.00 is low cost or not is relative. It's too much for most of us, but it's far cheaper than the roughly $20 million others have been charged for a ride into space.
Originally posted by AnteBellum
Virgin Galactic Link
The SpaceShip Two is able to hold six passengers and two crew, already 300 people have reportedly signed up at a cost of about £121,000.