The United States Air subway envisages the use of nuclear fusion to power

"Air subway when the concept was first mentioned, a lot of people think it is wishful thinking, however, recently American scientists on the plan the initial ideas air subway seems to dream a step closer. In this vision, the "air subway than ordinary aircraft a lot, can accommodate 30,000 people at the airport must also be expanded accordingly. Imagine this scene when you arrive at the airport sitting in an ordinary airplane, and tens of thousands of people get on this monster, that feeling is not it cool?
To drive such a huge machine, nuclear power is the only option, and scientific calculations, the use of nuclear-powered flight of 600 miles than the average fuel savings of 40% can save 80 percent of the cost of flying 6000 miles trip. Experts to build a lot of "air subway to invest at least $ 1 trillion, operating costs are also very expensive and must wait until the economy is highly developed, and passengers need. Although the current scientific standards can not be achieved"air subway construction, but scientists believe that someday will be achieved.