Description and preliminary calibration results for the Langley hypersonic CF4 tunnel
A 1978 NASA Langley technical report by R. E. Midden and C. G. Miller describing the construction and first calibration runs of a hypersonic tetrafluoromethane wind tunnel, written for aerospace test engineers. Line schematics chart gas storage, heaters, nozzles, dump tanks and pumps as labeled boxes and valve symbols, while coarse halftone photographs of shop interiors and scorched hardware break into high-contrast blotches.




