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Rocket Power Plants Based on Nitric Acid and their Specific Propulsive Weights

Description: Two fields are reserved for the application of rocket power plants. The first field is determined by the fact that the rocket power plant is the only type of power plant that can produce thrust without dependence upon environment. For this field,the rocket is therefore the only possible power plant and the limit of what may be done is determined by the status of the technical development of these power plants at the given moment. The second field is that in which the rocket power plant proves itself the most suitable as a high-power drive in free competition with other types of power plants. The exposition will be devoted to the demarcation of this field and its division among the various types of rocket power plants.
Date: May 1, 1947
Creator: Zborowski, Helmut
Partner: UNT Libraries Government Documents Department

Some investigations of the general instability of stiffened metal cylinders VIII : stiffened metal cylinders subjected to pure torsion

Description: An experimental investigation of the general instability of reinforced thin-walled metal cylinders was carried out at the California Institute of Technology. The basic parameters involved were the spacing and sectional properties of the stiffening elements, the wall thickness, and the diameter of the cylinder. An analysis of the experimental data led to a suitable parameter for estimating the general instability stress of reinforced metal cylinders when subjected to pure torsion loading.
Date: May 1, 1947
Creator: Dunn, Louis G
Partner: UNT Libraries Government Documents Department