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Date: 2010-04-06 08:09:51Spaceflight Single-stage-to-orbit Jet engines Spaceplanes Space access Aerospaceplane Liquid air cycle engine Scramjet Boeing X-20 Dyna-Soar Aerospace engineering Space technology Spacecraft propulsion | Add to Reading ListSource URL: history.nasa.govDownload Document from Source WebsiteFile Size: 484,22 KBShare Document on Facebook |
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