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American and Chinese aircraft could be flying 6500 km/h by 2030

June 17, 2017 - 09:30 -- Admin

American and Chinese defense giants are moving quickly to reach the edge of space, aiming to launch hypersonic aircraft that can cross continents in under an hour. What exactly does hypersonic mean? Speeds of over Mach 5, or more than 3,835 miles per hour.