http://www.dailymail.co.uk/sciencetech/article-5421281/Chinas-hypersonic-HEAVY-BOMBER-plans-revealed.html

Plans for a 'hypersonic heavy bomber' that could reach New York City in just two hours have been unveiled by Chinese researchers. The aircraft (artist's impression) would travel at speeds of more than 3,700mph (6,000km/h), or five times the speed of sound