High Altitude Turbulence for Supersonic Cruise Vehicles
Author | : L. J. Ehernberger |
Publisher | : |
Total Pages | : 22 |
Release | : 1987 |
Genre | : |
ISBN | : |
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Author | : L. J. Ehernberger |
Publisher | : |
Total Pages | : 22 |
Release | : 1987 |
Genre | : |
ISBN | : |
Author | : Ronald J. Wilson |
Publisher | : |
Total Pages | : 92 |
Release | : 1971 |
Genre | : Atmospheric turbulence |
ISBN | : |
A turbulence response investigation was conducted with the XB-70 airplane. No special turbulence penetration techniques, speeds, or other restrictions were specified for the investigation, nor were any flights made solely to obtain turbulence data. During 79 flights, turbulence was encountered, and recorded on a VGH recorder, 6.2 percent of the total flight distance at supersonic speeds above an altitude of 12,192 meters (40,000 feet). Geographical locations are given for selected turbulence encounters. For 22 flights the airplane was instrumented to measure true gust velocities and the structural acceleration response to turbulence. The turbulence intensities measured were very low in comparison with those measured at high altitudes in other investigations. Acceleration response spectra, frequency response transfer functions, and coherence functions were computed from three turbulence encounters at Mach numbers of 0.88, 1. 59, and 2.35. Results are compared with calculated studies. Frequencies from the vertical and lateral structural modes, dominant in the airplane acceleration responses, were compared with the natural frequencies of the human body in the vertical and lateral directions.
Author | : |
Publisher | : |
Total Pages | : 552 |
Release | : 1991 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1282 |
Release | : 1989 |
Genre | : Technology |
ISBN | : |
Author | : J. Burnham |
Publisher | : |
Total Pages | : |
Release | : 1964 |
Genre | : |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 728 |
Release | : 1994 |
Genre | : Aeronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1092 |
Release | : 1977 |
Genre | : Astronautics |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 1064 |
Release | : 2010 |
Genre | : Aeronautics |
ISBN | : |
Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.
Author | : |
Publisher | : DIANE Publishing |
Total Pages | : 162 |
Release | : |
Genre | : |
ISBN | : 1428994580 |
Author | : |
Publisher | : |
Total Pages | : 686 |
Release | : 1973 |
Genre | : |
ISBN | : |