Tests in the variable-density wind tunnel of the NACA 23012 airfoil with plain and split flaps (open access)

Tests in the variable-density wind tunnel of the NACA 23012 airfoil with plain and split flaps

From Summary: "Section characteristics for use in wing design are presented for the NACA 23012 airfoil with plain and split flaps of 20 percent wing chord at a value of the effective Reynolds number of about 8,000,000. The flap deflections covered a range from 60 degrees upward to 75 degrees downward for the plain flap and from neutral to 90 degrees downward for the split flap. The split flap was aerodynamically superior to the plain flap in producing high maximum lift coefficients and in having lower profile-drag coefficients at high lift coefficients."
Date: January 21, 1938
Creator: Abbott, Ira H. & Greenberg, Harry
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: O-143 (open access)

Texas Attorney General Opinion: O-143

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Legality of Commission employees receiving fees for unofficial sets.
Date: January 21, 1939
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: O-150 (open access)

Texas Attorney General Opinion: O-150

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Right of Treasurer to claim commissions upon funds transferred from one fund to another within a Conservation and Reclamation District.
Date: January 21, 1939
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History