The Calculation of Downwash Behind Supersonic Wings with an Application to Triangular Plan Forms
The Calculation of Downwash Behind Supersonic Wings with an Application to Triangular Plan Forms

Author: Max A. Heaslet

Publisher:

Published: 1948

Total Pages: 726

ISBN-13:

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A method is developed, consistent with the assumptions of small perturbation theory, which provides a means of determining for a known load distribution, the downwash behind a wing in supersonic flow. THe analysis is based upon the use of supersonic doublets which are distributed over the plan form and wake of the wing in a manner determined from the wing loading.

Standard Procedures for Rating and Testing Multistage Axial-flow Compressors
Standard Procedures for Rating and Testing Multistage Axial-flow Compressors

Author: United States. National Advisory Committee for Aeronautics

Publisher:

Published: 1946

Total Pages: 544

ISBN-13:

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In order to establish a standard procedure for rating and testing multistage axial-flow compressors, the NACA Subcommittee on Compressors appointed a panel to write such a procedure. This panel made recommendations for standardization of test setups, instrumentation, test procedure, data to be taken, and the presentation of the data. These recommendations are presented.

Calculation of Tunnel-induced Upwash Velocities for Swept and Yawed Wings
Calculation of Tunnel-induced Upwash Velocities for Swept and Yawed Wings

Author: S. Katzoff

Publisher:

Published: 1948

Total Pages: 670

ISBN-13:

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The tunnel-induced upwash for a wing of any plan form and load distribution in a rectangular tunnel may be found with the aid of only two charts. One is given in the present paper. The second must be computed for each tunnel. The second chart is given for an open tunnel of 2:1 width-height ratio, a closed tunnel of 2:5 width-height ratio, and a closed tunnel of 10:7 width-height ratio.

Physical Properties of Synthetic Resin Materials
Physical Properties of Synthetic Resin Materials

Author: Meyer Fishbein

Publisher:

Published: 1939

Total Pages: 562

ISBN-13:

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A study was made to determine the physical properties of synthetic resins having paper, canvas, and linen reinforcements, and of laminated wood impregnated with a resin varnish.