Calculated and measured pressure distributions over the midspan section of the NACA 4412 airfoil (open access)

Calculated and measured pressure distributions over the midspan section of the NACA 4412 airfoil

Pressures were simultaneously measured in the variable-density tunnel at 54 orifices distributed over the midspan section of 5 by 30 inch rectangular model of the NACA 4412 airfoil at 17 angles of attack ranging from -20 degrees to 30 degrees at a Reynolds number of approximately 3,000,000. Accurate data were thus obtained for studying the deviations of the results of potential-flow theory from measured results. The results of the analysis and a discussion of the experimental technique are presented.
Date: March 25, 1936
Creator: Pinkerton, Robert M.
System: The UNT Digital Library
Annual Report of the Boy Scouts of America: 1937 (open access)

Annual Report of the Boy Scouts of America: 1937

Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1937, activities, service reports, finance, honors, organizational leadership, and other information about scouting programs.
Date: March 25, 1938
Creator: Boy Scouts of America
System: The Portal to Texas History