the original source of tgr figure:
Bertram, Mitchel H.; and Beckwith, Ivan E.: NASA-Langley Boundary Layer Transition Investigations. Boundary Layer Transition Study Group Meeting, William D. McCauley, ed., BSD-TR-67-213, Vol III, U.S. Air Force, Aug. 1967, pp. 18-i -18-74. (Available from DDC as AD 384 006.)
Access to this paper is restricted to american nationals. I am not asking to get the paper.
Could someone share the exact wind tunnels in which those 586 points were obtained?
Alternatively share references list from the paper