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  Partner: UNT Libraries Government Documents Department
 Collection: Technical Report Archive and Image Library
Test of six types of Bakelite-bonded wire strain gages

Test of six types of Bakelite-bonded wire strain gages

Date: July 1, 1948
Creator: Campbell, William R
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Test of specimen of wood of longerons of the S.E.5 airplane after seven years' service

Test of specimen of wood of longerons of the S.E.5 airplane after seven years' service

Date: August 1, 1922
Creator: unknown
Description: A transverse test was made of the wood sample using a 5,000 pound Olsen testing machine, the deflection under load being measured by means of a Wissler dial. The results of the transverse test are given and the stress-strain curve is attached.
Contributing Partner: UNT Libraries Government Documents Department
Test Report on Measurements on a Series of Tapered Wings of Small Aspect Ratio (Trapezoidal Wing with Fuselage)

Test Report on Measurements on a Series of Tapered Wings of Small Aspect Ratio (Trapezoidal Wing with Fuselage)

Date: July 1, 1947
Creator: Lange & Wacke
Description: This is the second of a series of six reports dealing with three- and six-component measurements on the tapering series at small aspect ratio. The present report concerns the trapezoidal wing with fuselage.
Contributing Partner: UNT Libraries Government Documents Department
Test Report on Three- and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio

Test Report on Three- and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio

Date: May 1, 1948
Creator: Lange & Wacke
Description: The investigations of the reports to 4 on wings of small aspect ratio are continued. The present report deals with the results of the three- and six-component measurements and the flow pictures of the triangular wing series with the aspect ratio Lambda = 3 to Lambda = 1.
Contributing Partner: UNT Libraries Government Documents Department
Test Report on Three-and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio (Partial Report: Elliptic Wing)

Test Report on Three-and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio (Partial Report: Elliptic Wing)

Date: June 1, 1947
Creator: Lange & Wacke
Description: The report UM No. 1023/1 which presented the results of measurements for a series of trapezoidal wings was the beginning of a series on wings with aspect ratio 1 to 3 and various contours. In report No. 1023/1 the aspect ratio (Lambda = 4/3) remained the same; the tapering was modified. The present report gives the results of the series of elliptic wings. Here the aspect ratio varies from 1 to 2 with the sweepback. The contour is formed by elliptic arcs. The influence of sweepback and contour upon the neutral point is shown.
Contributing Partner: UNT Libraries Government Documents Department
Test Report on Three- and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio (Partial Report: Trapezoidal Wing)

Test Report on Three- and Six-Component Measurements on a Series of Tapered Wings of Small Aspect Ratio (Partial Report: Trapezoidal Wing)

Date: May 1, 1949
Creator: Lange & Wacke
Description: The present report, which forms the first of six articles on experiments with airfoils of aspect ratio from 1 to 3 and various planforms, deals with the three- and six-component measurements made on the trapezoidal wing series in the 2.15 x 3-meter wind tunnel of the DVL at the request of the Henschel Aircraft Company.
Contributing Partner: UNT Libraries Government Documents Department
Test-stand investigation of a rectangular ram-jet engine

Test-stand investigation of a rectangular ram-jet engine

Date: May 7, 1947
Creator: Black, Dugald O & Messing, Wesley E
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Test-stand investigation of cooling characteristics and factors affecting temperature distribution of a double-row aircraft engine

Test-stand investigation of cooling characteristics and factors affecting temperature distribution of a double-row aircraft engine

Date: March 1, 1946
Creator: Jones, Robert J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Testing a windmill airplane ("autogiro")

Testing a windmill airplane ("autogiro")

Date: January 1, 1927
Creator: Seiferth, R
Description: In order to clear up the matter ( In the Spanish report it was stated that the reference surface for the calculation of the coefficients c(sub a) and c(sub w) was the area of all four wings, instead of a single wing), the model of a windwill airplane was tested in the Gottingen wind tunnel.
Contributing Partner: UNT Libraries Government Documents Department
Testing airplane fabrics

Testing airplane fabrics

Date: April 1, 1924
Creator: Proll, A
Description: The following considerations determine the strength of airplane fabrics: 1. maximum air forces acting on the surfaces (including local stresses); 2. tensions produced in the fabrics, in the directions of both warp and filling; 3. factor of safety required. The question of the permissible depression of the fabric as affecting the aerodynamic requirements in regard to the maintenance of shape of the section, the tenacity and extensibility of the layer of dope, its strength and its permeability to water is almost as important.
Contributing Partner: UNT Libraries Government Documents Department