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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
The Van Zandter (Canton, Tex.), Vol. 36, No. 5, Ed. 1 Friday, January 7, 1938 (open access)

The Van Zandter (Canton, Tex.), Vol. 36, No. 5, Ed. 1 Friday, January 7, 1938

Weekly newspaper from Canton, Texas that includes local, state, and national news along with advertising.
Date: January 7, 1938
Creator: Adams, S. W.
Object Type: Newspaper
System: The Portal to Texas History
The Van Zandter (Canton, Tex.), Vol. 36, No. 6, Ed. 1 Friday, January 14, 1938 (open access)

The Van Zandter (Canton, Tex.), Vol. 36, No. 6, Ed. 1 Friday, January 14, 1938

Weekly newspaper from Canton, Texas that includes local, state, and national news along with advertising.
Date: January 14, 1938
Creator: Adams, S. W.
Object Type: Newspaper
System: The Portal to Texas History
The Van Zandter (Canton, Tex.), Vol. 36, No. 7, Ed. 1 Friday, January 21, 1938 (open access)

The Van Zandter (Canton, Tex.), Vol. 36, No. 7, Ed. 1 Friday, January 21, 1938

Weekly newspaper from Canton, Texas that includes local, state, and national news along with advertising.
Date: January 21, 1938
Creator: Adams, S. W.
Object Type: Newspaper
System: The Portal to Texas History
The Van Zandter (Canton, Tex.), Vol. 36, No. 8, Ed. 1 Friday, January 28, 1938 (open access)

The Van Zandter (Canton, Tex.), Vol. 36, No. 8, Ed. 1 Friday, January 28, 1938

Weekly newspaper from Canton, Texas that includes local, state, and national news along with advertising.
Date: January 28, 1938
Creator: Adams, S. W.
Object Type: Newspaper
System: The Portal to Texas History
Payne County News (Stillwater, Okla.), Vol. 46, No. 19, Ed. 1 Friday, January 7, 1938 (open access)

Payne County News (Stillwater, Okla.), Vol. 46, No. 19, Ed. 1 Friday, January 7, 1938

Weekly newspaper from Stillwater, Oklahoma that includes local, state, and national news along with advertising.
Date: January 7, 1938
Creator: Allen, Willis F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Payne County News (Stillwater, Okla.), Vol. 46, No. 20, Ed. 1 Friday, January 14, 1938 (open access)

Payne County News (Stillwater, Okla.), Vol. 46, No. 20, Ed. 1 Friday, January 14, 1938

Weekly newspaper from Stillwater, Oklahoma that includes local, state, and national news along with advertising.
Date: January 14, 1938
Creator: Allen, Willis F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Payne County News (Stillwater, Okla.), Vol. 46, No. 21, Ed. 1 Friday, January 21, 1938 (open access)

Payne County News (Stillwater, Okla.), Vol. 46, No. 21, Ed. 1 Friday, January 21, 1938

Weekly newspaper from Stillwater, Oklahoma that includes local, state, and national news along with advertising.
Date: January 21, 1938
Creator: Allen, Willis F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Payne County News (Stillwater, Okla.), Vol. 46, No. 22, Ed. 1 Friday, January 28, 1938 (open access)

Payne County News (Stillwater, Okla.), Vol. 46, No. 22, Ed. 1 Friday, January 28, 1938

Weekly newspaper from Stillwater, Oklahoma that includes local, state, and national news along with advertising.
Date: January 28, 1938
Creator: Allen, Willis F.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 14, Ed. 1 Friday, January 7, 1938 (open access)

The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 14, Ed. 1 Friday, January 7, 1938

Weekly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: January 7, 1938
Creator: Ameringer, Oscar
Object Type: Newspaper
System: The Gateway to Oklahoma History
The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 15, Ed. 1 Friday, January 14, 1938 (open access)

The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 15, Ed. 1 Friday, January 14, 1938

Weekly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: January 14, 1938
Creator: Ameringer, Oscar
Object Type: Newspaper
System: The Gateway to Oklahoma History
The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 16, Ed. 1 Friday, January 21, 1938 (open access)

The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 16, Ed. 1 Friday, January 21, 1938

Weekly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: January 21, 1938
Creator: Ameringer, Oscar
Object Type: Newspaper
System: The Gateway to Oklahoma History
The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 17, Ed. 1 Friday, January 28, 1938 (open access)

The American Guardian (Oklahoma City, Okla.), Vol. 21, No. 17, Ed. 1 Friday, January 28, 1938

Weekly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news along with advertising.
Date: January 28, 1938
Creator: Ameringer, Oscar
Object Type: Newspaper
System: The Gateway to Oklahoma History
San Antonio Register (San Antonio, Tex.), Vol. 7, No. 40, Ed. 1 Friday, January 7, 1938 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 7, No. 40, Ed. 1 Friday, January 7, 1938

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: January 7, 1938
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 7, No. 41, Ed. 1 Friday, January 14, 1938 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 7, No. 41, Ed. 1 Friday, January 14, 1938

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: January 14, 1938
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 7, No. 42, Ed. 1 Friday, January 21, 1938 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 7, No. 42, Ed. 1 Friday, January 21, 1938

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: January 21, 1938
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 7, No. 43, Ed. 1 Friday, January 28, 1938 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 7, No. 43, Ed. 1 Friday, January 28, 1938

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: January 28, 1938
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 1, Ed. 1 Thursday, January 6, 1938 (open access)

Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 1, Ed. 1 Thursday, January 6, 1938

Weekly newspaper from Coleman, Texas that includes local, state, and national news along with advertising.
Date: January 6, 1938
Creator: Autry, R. A.
Object Type: Newspaper
System: The Portal to Texas History
Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 2, Ed. 1 Thursday, January 13, 1938 (open access)

Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 2, Ed. 1 Thursday, January 13, 1938

Weekly newspaper from Coleman, Texas that includes local, state, and national news along with advertising.
Date: January 13, 1938
Creator: Autry, R. A.
Object Type: Newspaper
System: The Portal to Texas History
Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 3, Ed. 1 Thursday, January 20, 1938 (open access)

Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 3, Ed. 1 Thursday, January 20, 1938

Weekly newspaper from Coleman, Texas that includes local, state, and national news along with advertising.
Date: January 20, 1938
Creator: Autry, R. A.
Object Type: Newspaper
System: The Portal to Texas History
Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 4, Ed. 1 Thursday, January 27, 1938 (open access)

Coleman County Chronicle (Coleman, Tex.), Vol. 6, No. 4, Ed. 1 Thursday, January 27, 1938

Weekly newspaper from Coleman, Texas that includes local, state, and national news along with advertising.
Date: January 27, 1938
Creator: Autry, R. A.
Object Type: Newspaper
System: The Portal to Texas History
Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 75, Ed. 1 Sunday, January 2, 1938 (open access)

Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 75, Ed. 1 Sunday, January 2, 1938

Daily newspaper from Cleburne, Texas that includes local, state, and national news along with advertising.
Date: January 2, 1938
Creator: Bacus, Roy
Object Type: Newspaper
System: The Portal to Texas History
Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 76, Ed. 1 Monday, January 3, 1938 (open access)

Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 76, Ed. 1 Monday, January 3, 1938

Daily newspaper from Cleburne, Texas that includes local, state, and national news along with advertising.
Date: January 3, 1938
Creator: Bacus, Roy
Object Type: Newspaper
System: The Portal to Texas History
Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 77, Ed. 1 Tuesday, January 4, 1938 (open access)

Cleburne Times-Review (Cleburne, Tex.), Vol. 33, No. 77, Ed. 1 Tuesday, January 4, 1938

Daily newspaper from Cleburne, Texas that includes local, state, and national news along with advertising.
Date: January 4, 1938
Creator: Bacus, Roy
Object Type: Newspaper
System: The Portal to Texas History