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Deflections and all internal forces have been calculated for concentrated static loads. Vibration modes are also presented. The effects of neglecting shearing strains in the ribs and spars and also of assuming the ribs to be rigid have been investigated by modifying the electric circuits to correspond to these simplifications.
An approximate method for determining the convective cooling requirement in the laminar-boundary-layer region of a body of revolution in high-speed flight was developed and applied to an example body. The cooling requirement for the example body was determined as a function of Mach number, altitude, size, and a surface-temperature parameter. The maximum value of Mach number considered was 3.0 and the altitudes considered were those within the lower constant-temperature region of the atmosphere (40,000 to 120,000 ft). The extent of the laminar boundary layer was determined approximately at each condition as a function of the variables considered.
Includes its Reports, which are also issued separately.
An analytical study in computer-aided vehicle design is presented. The vehicle under study is the Unlimited Competition Racing Hydroplane, and the design objective is to obtain maximum lift/drag ratio in addition to adequate pitch plane stability. After discussion of the design concept, the mathematical model used to represent the aerodynamics and hydrodynamics of the configuration is developed. The mathematical model is then programmed for solution on a digital computer and an optimization study is performed. It is concluded that a tentative preliminary configuration is obtained through computer-aided design, but that the complexity of the concept will require further tow tank and wind tunnel model tests. (Author).