22 research outputs found
Declination, Radial Distance, and Phases of the Moon for the Years 1961 to 1971 for Use in Trajectory Considerations
Get PDFAs a byproduct of the preparation of solar and lunar coordinates for use in trajectory calculations a time history has been obtained of the radial distance and declination of the moon and its phases. Results are intended for use as an aid in the selection of launch dates. Results are presented for the years 1961 to 1971 in a form which permits a rapid approximate determination of the combination of declination and lighting for any calendar date. The information provides a time basis for entering tables of the moon's coordinates to obtain more precise data for use in computing insertion conditions
A calculation study of wing-aileron flutter in two degrees of freedom for two-dimensional supersonic flow
Get PDFPreliminary Experimental Investigation of Effects of Aerodynamic Shape of Concentrated Weights on Flutter of a Straight Cantilever Wing
Get PDFUse of the Kernel function in a three-dimensional flutter analysis with application to a flutter-tested delta-wing model
Get PDFA theoretical and experimental study of wind-tunnel-wall effects on oscillating air forces for two-dimensional subsonic compressible flow
Get PDF
On the Kernel function of the integral equation relating the lift and downwash distribution of oscillating finite wings in subsonic flow
Get PDFRecommended from our members
NACA Technical Notes
No full textReport presenting the results of some sample calculations for the bending-aileron and torsion-aileron flutter of an idealized wing-aileron system for several values of Mach number in supersonic flow and some subsonic Mach numbers. The results are preliminary but may provide some knowledge of the influence of variations in certain parameters and to indicate some of the differences in the trends at high and low speeds
