People used to spend months travelling from one side of the United States to the other, and now the American military is working on a way to be anywhere in the world within four hours. Apparently, the United States Air Force is looking for partners to help it develop a hypersonic jet that’s capable of travelling at five times the speed of sound, otherwise known as Mach 5.
Scientists with the Air Force Research Laboratory and the Pentagon’s research arm are working to build a new hypersonic air vehicle that can travel at speeds up to Mach 5 while carrying guidance systems and other materials. Air Force Chief Scientist Mica Endsley said the service wants to build upon the successful hypersonic test flight of the X-51 Waverider 60,000 feet above the Pacific Ocean in May of 2013. Endsley said the Air Force and DARPA, the Pentagon’s research entity, plan to have a new and improved hypersonic air vehicle by 2023. “X-51 was really a proof of concept test. It showed that you could get a scram jet engine, launch it off an aircraft and it could go hypersonic. It was able to go more than Mach 5 until it ran out of fuel. It was a very successful test of an airborne hypersonic weapons system,” Endsley said. The 2013 test flight, which wound up being the longest air-breathing hypersonic flight ever, wrapped up a $300 million technology demonstration program beginning in 2004, Air Force officials said.
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