The Global Hypersonic Race

... announcement was used as a pretext for investing more in the Pentagon’s projects. “We have lost our technical advantage in hypersonics [but] we have not lost the hypersonics fight,” said Vice Chairman of the Joint Chiefs of Staff General Paul Selva.... ... skipping stone along the water surface, such a vehicle can increase its flight range by several times. The second type is a scramjet-powered vehicle, which can only fly in the atmosphere because its engine needs oxygen. The third type is a quasi-ballistic ...