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Determination of optimum plan forms for control surfaces

Description: Solutions found for a range of airfoil plan forms indicate that, regardless of the characteristics of the tail surface, the chord of the rudder or of the elevator should be very nearly constant over its span. The optimum ailerons are also of a characteristic shape, varying little with the plan form of the wing.
Date: January 30, 1941
Creator: Jones, Robert T. & Cohen, Doris
Partner: UNT Libraries Government Documents Department
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Pressure distribution over an NACA 23012 airfoil with a fixed slot and a slotted flap

Description: Report presents the results of a pressure-distribution investigation conducted in the Langley Memorial Aeronautical Laboratory 7 by 10-foot wind tunnel to determine the air loads on an NACA 23012 airfoil in combination with a fixed leading-edge slot and a slotted flap. Pressures were measured over the upper and lower surfaces of the component parts of the combination for several angles of attack and at several flap settings. The data, presented as pressure diagrams and graphs of section coeffic… more
Date: July 30, 1941
Creator: Harris, Thomas A. & Lowry, John G.
Partner: UNT Libraries Government Documents Department
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[Letter from Ernesto O. Schuster to Joaquin Aguilar Robles]

Description: Letter from Ernesto O. Schuster to Joaquin Aguilar Robles. A wide column of paragraphed text is printed below a date, name, and location. The text column continues across the fronts of three additional pages before ending above a signature. Portions of the second page's text are underlined.
Date: May 30, 1941
Creator: Parlee, Lorena, 1945-2006 & Schuster, Ernesto O.
Partner: UNT Libraries Special Collections
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