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An approximate spin design criterion for monoplanes

Description: "A quantitative criterion of merit has been needed to assist airplane designers to incorporate satisfactory spinning characteristics into new designs. An approximate empirical criterion, based on the projected side area and the mass distribution of the airplane, has been formulated in a recent British report. In the present paper, the British results have been analyzed and applied to American designs. A simpler design criterion based solely on the type and the dimensions of the tail, has been d… more
Date: June 1939
Creator: Seidman, Oscar & Donlan, Charles J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Unsteady Lift of a Finite Wing

Description: Note discussing the lift of a finite wing including the calculations and constants for each step of the lift. This information is compared against the lift of an infinite wing. From Summary: "Unsteady lift function for wings of finite aspect ratio have been calculated by approximate methods involving corrections of the aerodynamic inertia and of the angle of the infinite wing. The starting lift of the finite wing is found to be only slightly less than that of the infinite wing; whereas the fina… more
Date: January 1939
Creator: Jones, Robert T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pressure drop in tank and float vent tubes on diving airplanes

Description: Report presenting an experiment regarding tank and float venting conditions that exist on diving airplanes undergoing rapid changes in altitude. The results indicated that large pressure differences build up between the outside and inside of tanks and floats on diving airplanes unless the correct size of venting tube is used.
Date: January 1939
Creator: Waldron, C. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

["Cynthia Parker" Play]

Description: Photograph of students acting in the play "Cynthia Parker" at North Texas State Teachers' College. One woman appears to have been shot with an arrow, while a native american and a second woman watch.
Date: 1939
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

North Texas State Teachers College vs. Commerce Football Game in Action, 1939]

Description: Photograph of the North Texas State Teachers College vs. Commerce football game during a play. The image consist of multiple players from both teams tackling, running, and blocking each other on the football field. There are football fans on the bleachers and teams members standing along the side lines on the field in the background.
Date: 1939
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[A Field Goal Play during a Football Game, 1939]

Description: Photograph of a field goal play during a football game between the North Texas State Teachers College and Commerce football team. The image consists of multiple player during a game play with a football sailing past the goal post. In the background multiple football fans can be seen along the sidelines and standing near the fences surrounding the football field.
Date: 1939
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections

[Nancy Gates performing on stage]

Description: Photograph of Nancy Gates performing on stage with a band as she sings in a microphone. She is wearing a black dress, the band is visible in the background, and a man in a suit is visible in the right hand side of the photograph.
Date: 1939
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
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