Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III written by J.W. Jones and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Interim Report written by K. R. Monson and published by . This book was released on 1969 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this report describe accomplishments during the first half of the Low-Level Critical Air Turbulence (LO-LOCAT) Phase III program. Data that were obtained during flight over routes near McConnell Air Force Base, Kansas, and Edwards Air Force Base, California, are presented. Also included are time histories of some of the larger magnitude gust velocities recorded over the Peterson Field, Colorado route. Approximately 72 hours of low-level (0-1000 feet) turbulence and associated meteorological data recorded from August 16, 1968, through January 8, 1969, are presented. The turbulence environment is analyzed in terms of gust velocity primary peaks, amplitude samples, rms values, maximum values and derived equivalent gusts. Mathematical expressions for turbulence spectra and scale length statistics, and correlations between atmospheric gust velocities and meteorological and geophysical phenomena are shown. The most predominant characteristics of these data are the increases in rms values, scale lengths, Taylor micro scales and maximum gust values as compared to the LO-LOCAT Phases I and II data. These differences are attributed to the increased speed of the Phase III airplane which is providing a better definition of the longer wavelengths of atmospheric turbulence. This report consists of two volumes. Volume I contains a discussion of data acquisition and quality, along with a preliminary analysis of turbulence and meteorological data.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Volume II Part I Data Acquisition and Processing Data Plots and Tabulations written by J. W. Jones and published by . This book was released on 1970 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods, and final results pertaining to the LO-LOCAT Phase III program. The contents of this volume include the following: Airplane modification and instrumentation details; Calibrations and checks; Data quality; Data acquisition operation; Data processing; Test log; Gust velocity peak, amplitude, and level crossings count data; Data tabulations.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III written by J.W. Jones and published by . This book was released on 1970 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Volume I Part II Data Analysis written by J. W. Jones and published by . This book was released on 1970 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods, and final results pertaining to the LO-LOCAT Phase III program. The contents of this report include the following: Geophysical characteristics Turbulence forecasting; Bren tower, thunderstorm, and wake turbulence investigations; Comparison of LO-LOCAT phases I and II with phase III data; Comparison of LO-LOCAT (phases I, II, and III) with other low altitude turbulence data; Additional research.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Interim Report written by K. R. Monson and published by . This book was released on 1969 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this report describe accomplishments during the first half of the Low-Level Critical Air Turbulence (LO-LOCAT) Phase III program. Data that were obtained during flight over routes near McConnell Air Force Base, Kansas, and Edwards Air Force Base, California, are presented. Also included are time histories of some of the larger magnitude gust velocities recorded over the Peterson Field, Colorado route. Approximately 72 hours of low-level (0-1000 feet) turbulence and associated meteorological data recorded from August 16, 1968, through January 8, 1969, are presented. The turbulence environment is analyzed in terms of gust velocity primary peaks, amplitude samples, rms values, maximum values and derived equivalent gusts. Mathematical expressions for turbulence spectra and scale length statistics, and correlations between atmospheric gust velocities and meteorological and geophysical phenomena are shown. The most predominant characteristics of these data are the increases in rms values, scale lengths, Taylor micro scales and maximum gust values as compared to the LO-LOCAT Phases I and II data. These differences are attributed to the increased speed of the Phase III airplane which is providing a better definition of the longer wavelengths of atmospheric turbulence. This report consists of two volumes. Volume I contains a discussion of data acquisition and quality, along with a preliminary analysis of turbulence and meteorological data.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Interim Report Volume 1 Data Acquisition and Analysis written by and published by . This book was released on 1969 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of this report describe accomplishments during the first half of the Low-Level Critical Air Turbulence (LO-LOCAT) Phase III program. Data that were obtained during flight over routes near McConnell Air Force Base, Kansas, and Edwards Air Force Base, California, are presented. Also included are time histories of some of the larger magnitude gust velocities recorded over the Peterson Field, Colorado route. Approximately 72 hours of low-level (0-1000 feet) turbulence and associated meteorological data recorded from August 16, 1968, through January 8, 1969, are presented. The turbulence environment is analyzed in terms of gust velocity primary peaks, amplitude samples, rms values, maximum values and derived equivalent gusts. Mathematical expressions for turbulence spectra and scale length statistics, and correlations between atmospheric gust velocities and meteorological and geophysical phenomena are shown. The most predominant characteristics of these data are the increases in rms values, scale lengths, Taylor micro scales and maximum gust values as compared to the LO-LOCAT Phases I and II data. These differences are attributed to the increased speed of the Phase III airplane which is providing a better definition of the longer wavelengths of atmospheric turbulence. This report consists of two volumes. Volume I contains a discussion of data acquisition and quality, along with a preliminary analysis of turbulence and meteorological data.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase III Interim Report Volume II Instrumentation and Data Processing Details Gust Velocity Data and Test Log written by K. R. Monson and published by . This book was released on 1969 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contents of the report describe accomplishments during the first half of the Low-Level Critical Air Turbulence (LO-LOCAT) Phase III program. Also included are time histories of some of the larger magnitude gust velocities recorded over the Peterson Field, Colorado route. Approximately 72 hours of low-level (0-1000 feet) turbulence and associated meteorological data recorded from August 16, 1968, through January 8, 1969, are presented. The turbulence environment is analyzed in terms of gust velocity primary peaks, amplitude samples, rms values, maximum values and derived equivalent gusts. Mathematical expressions for turbulence spectra and scale length statistics, and correlations between atmospheric gust velocities and meteorological and geophysical phenomena are shown. The most predominant characteristics of these data are the increases in rms values, scale lengths, Taylor micro scales and maximum gust values as compared to the LO-LOCAT Phases I and II data. These differences are attributed to the increased speed of the Phase III airplane which is providing a better definition of the longer wavelengths of atmospheric turbulence. Instrumentation details, calibrations and checks, data processing, gust velocity data (power spectra, peak and amplitude count, etc.) and test logs are presented in Volume II. (Author).

Download or read book Low Altitude Atmospheric Turbulence written by J. W. Jones and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase 3 Volume 2 Part 2 Frequency Data Plots written by and published by . This book was released on 1970 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods, and final results pertaining to the LO-LOCAT Phase III program. Approximately 150 hours of low altitude (100 - 1000 feet) turbulence and associated meteorological data were recorded from 16 August 1968 through 30 June 1969. A model of the turbulence environment at low-level is presented in terms of gust velocity primary peaks, level crossings, amplitude samples, rms values, and gust maxima, as well as derived equivalent gusts, turbulence scale lengths, and power spectra. Mathematical expressions for turbulence spectra, scale length, and primary peak statistics are shown. Correlations between atmospheric gust velocities and meteorological and geophysical phenomena are evaluated. It was found that gust velocity magnitude at low altitude is most affected by atmospheric stability and terrain. Gust velocity rms values above 1.5 fps may be approximated by truncated Gaussian distributions. For wavelengths less than 15,000 feet, turbulence spectra are best represented by the von Karman mathematical expressions. The turbulence, sampled for 4-1/2 minute intervals over a distance of approximately 32 miles at absolute altitudes below 1,000 feet, was found to be basically stationary, isotropic, and homogeneous.

Download or read book Low Altitude Atmospheric Turbulence LO LOCAT Phase 3 Volume 1 Part 1 Data Analysis written by and published by . This book was released on 1970 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods, and final results pertaining to the LO-LOCAT Phase 3 program. Approximately 150 hours of low altitude (100 - 1000 feet) turbulence and associated meteorological data were recorded from 16 August 1968 through 30 June 1969. A model of the turbulence environment at low-level is presented in terms of gust velocity primary peaks, level crossings, amplitude samples, rms values, and gust maxima, as well as derived equivalent gusts, turbulence scale lengths, and power spectra. Mathematical expressions for turbulence spectra, scale length, and primary peak statistics are shown. Correlations between atmospheric gust velocities and meteorological and geophysical phenomena are evaluated. It was found that gust velocity magnitude at low altitude is most affected by atmospheric stability and terrain. Gust velocity rms values above 1.5 fps may be approximated by truncated Gaussian distributions. For wavelengths less than 15,000 feet, turbulence spectra are best represented by the von Karman mathematical expressions. The turbulence, sampled for 4-1/2 minute intervals over a distance of approximately 32 miles at absolute altitudes below 1,000 feet, was found to be basically stationary, isotropic, and homogeneous.

Download or read book Low Altitude Atmospheric Turbulence LO CAT Phase III Interim Report written by K. R. Monson and published by . This book was released on 1969 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low Altitude Atmospheric Turbulence LO CAT Phase III Interim Report written by K. R. Monson and published by . This book was released on 1969 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Additional Research of Low Altitude Turbulence Data written by Joe D. Gault and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods and results pertaining to a more detailed study of several data samples recorded during the Low Altitude Atmospheric Turbulence Program (LO-LOCAT, Phase III). Wind spectra corrected for airplane motion effects and gust velocity calculated using filtered input parameters substantiated the original results obtained during LO-LOCAT, Phase III. (Author).

Download or read book Proceedings of the Air Force Conference on Fatigue and Fracture of Aircraft Structures and Materials written by Air Force Flight Dynamics Laboratory (U.S.) and published by . This book was released on 1971 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt: The document is comprised of papers presented at the Air Force Conference on Fatigue of Aircraft Structures and Materials, sponsored by the Air Force Flight Dynamics Laboratory (AFFDL) and the Air Force Materials Laboratory (AFML), Air Force Systems Command. The purpose of the Conference was to discuss technological advancements in fatigue and fracture theory. The Conference was comprised of ten technical sessions (including two panel discussions) entitled 'The Role of Materials in Structures'; 'Fundamentals I + II'; 'Criteria'; 'Fracture I + II'; 'Phenomena I + II'; 'Analysis'; 'Design and Service Experience'. A total of fifty-six technical papers were presented.

Download or read book Low Altitude Atmospheric Turbulence Lo Locat Phases I and II written by D. E. Gunter and published by . This book was released on 1969 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents procedures, analysis methods, and final results pertaining to the LO-LOCAT Program (Phases I and II). Approximately 800 hours of low-level (0-1,000 feet) turbulence and associated meteorological data recorded from September 15, 1966 to December 20, 1967 are analyzed. A model of the turbulence environment at low-level is presented in terms of gust velocity primary peaks, amplitude samples, rms values, maximum values, and derived equivalent gusts. Mathematical expressions of turbulence spectra and scale length statistics, and correlations between atmospheric gust velocities and meteorological and geophysical phenomena are shown. The frequency spectrum of turbulence and the associated characteristics of isotropy, homogeneity, and stationarity are discussed. It was found that gust velocity magnitude rms values above 1.0 fps may be approximated by truncated normal distributions. For wavelengths less than 7,000 feet turbulence spectra are best represented by the von Karman expressions. The longitudinal scale length of atmospheric turbulence at low altitude is approximately 400 feet. The turbulence, sampled during 5-1/2 minutes over a distance of approximately 21 miles, at absolute altitudes below 1,000 feet, was found to be stationary, isotropic, and homogeneous. (Author).

Download or read book Low Altitude Atmospheric Turbulence Lo locat Mid term Technical Data Analysis written by J. D. Gault and published by . This book was released on 1967 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: