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>These deltas were >then applied to drag/lift/pitch moment data obtained in scaled aerodynamic >wind tunnel tests of the full vehicle configuration. These values were >compared with those generated using an analysis methodology which included >3-D CFD and 2/1-D engine cycle codes. This comparison is shown on p. 19 of >the presentation package for Hyper-X Flight Engine Ground Testing for X-43 >Flight Risk Reduction, L. D. Huebner, K. E. Rock, E. G. Ruf , D. W. Witte, >and E. H. Andrews, Jr. AIAA/NAL-NASDA-ISAS 10 th International Space >Planes and Hypersonic Systems and Technologies Conference, Kyoto, Japan, >AIAA 2001-1809, >http://hapb-www.larc.nasa.gov/Public/Documents/KyotoVGall.pdf Thought I hate replying to my own posts, I omitted one additional very important point. While one may say the ground tests in of themselves were the ultimate verification of the Mach 7 design, of equal importance was the verification of the predictive methodology using 3-D CFD and 2/1-D cycle analysis, as this type of final validation test not possible for the Mach 10 Hyper-X vehicle/engine design. Such are the limitations in the current state of the art in both propulsion and propulsion-airframe integration ground tests at this point in time.
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