SP-4103 Model Research - Volume 1

Left, a 20° cone - cylinder is melted in a wind tunnel by the friction of air passing it at 6.9 times the speed of sound , much as a similarly shaped spacecraft would melt on re entering the earth's atmosphere .

Left, a 20° cone - cylinder is melted in a wind tunnel by the friction of air passing it at 6.9 times the speed of sound , much as a similarly shaped spacecraft would melt on re entering the earth's atmosphere . (LaRC) Right , H . Julian ( Harvey) Allen stands beside the test section of the Ames 8-by 7 foot unitary, plan wind tunnel, in which is mounted a test model of the blunt-body concept he pioneered counteract this heating problem in reentry vehicles. (ARC)
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