Australia, U.S. Complete Mach 7.5 Hypersonic Test

Aviation Week (online registration required): Researchers say data from a successful Mach 7.5 flight test will help designers of future hypersonic vehicles and weapons more accurately predict the behavior of the boundary layer, one of the great areas of uncertainty still remaining in the high-speed flight regime. The data were collected during the May 18 rocket-boosted flight of HIFiRE 5B, a test conducted under the joint Australian-U.S. Hypersonic International Flight Research Experimentation (HIFiRE) program. The flight, a repeat of ...

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