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Correcting Engine Tests for Humidity
Note presenting tests using a multicylinder engine to determine the effect that atmospheric humidity has on some phases of engine performance. Three test series with different types of fuel were carried out. The results indicate that failure to allow for the effect of differences in atmospheric humidity may introduce errors as great as would be occasioned by failure to allow for changes in barometric pressure.
Date:
June 1929
Creator:
Brooks, Donald B.
System:
The UNT Digital Library
Pressure Distribution on a Slotted R.A.F. 31 Airfoil in the Variable Density Wind Tunnel
Measurements were made in the variable density wind tunnel to determine the pressure distribution over one section of a R.A.F. 31 airfoil with a leading edge slot fully open. To provide data for the study of scale effect on this type of airfoil, the tests were conducted with air densities of approximately one and twenty atmospheres.
Date:
June 1929
Creator:
Jacobs, Eastman N.
System:
The UNT Digital Library
Strength of Tubing Under Combined Axial and Transverse Loading
Note presenting a systematic study of the strength of duralumin and chrome-molybdenum steel round tubing in combined transverse and axial loading. A description of the formulas that are the groundwork for the study as well as the results of the tests are provided.
Date:
June 1929
Creator:
Tuckerman, L. B.; Petrenko, S. N. & Johnson, C. D.
System:
The UNT Digital Library