NACA research memorandum RM (series). (National Advisory Committee for Aeronautics.) [Processed. No longer confidential.]. E54I29. Experimental investigation of 0.4 hub-tip diameter ratio axial-flow compressor inlet stage at transonic inlet relative Mach numbers: 2, Stage and blade-element performance [with list of references]; by John C. Montgomery and Frederick W. Glaser.

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