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Date: 2014-04-02 13:20:30Aerospace engineering Parasite aircraft Rocket-powered aircraft Spacecraft propulsion Edwards Air Force Base Hypersonic flight North American X-15 Hypersonic speed Dryden Flight Research Center Space technology Spaceflight Transport | Hypersonics Before the Shuttle A Concise History of the X-15 Research Airplane Dennis R. JenkinsAdd to Reading ListSource URL: history.nasa.govDownload Document from Source WebsiteFile Size: 1,65 MBShare Document on Facebook |