Some Flight Measurement of Pressure Distribution During Tail Buffeting

Some Flight Measurement of Pressure Distribution During Tail Buffeting PDF Author: John Boshar
Publisher:
ISBN:
Category :
Languages : en
Pages : 21

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Some Flight Measurements of Pressure Distribution During Tail Buffeting

Some Flight Measurements of Pressure Distribution During Tail Buffeting PDF Author: John Boshar
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 22

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Results are presented of pressure-distribution measurements taken over the horizontal tail surfaces of a Curtiss P-40K airplane during several low-speed pull-ups to abrupt stall in which tail buffeting was experienced.

Flight Studies of the Horizontal-tail Loads Experienced by a Modern Pursuit Airplane in Abrupt Maneuvers

Flight Studies of the Horizontal-tail Loads Experienced by a Modern Pursuit Airplane in Abrupt Maneuvers PDF Author: Langley Aeronautical Laboratory
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 50

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Summary: Flight measurements were made on a modern pursuit airplane to determine the approximate magnitude of the horizontal tail loads in accelerated flight. In these flight measurements, pressures at a few points were used as an index of the tail loads by correlating these pressures with complete pressure-distribution data obtained in the NACA full-scale tunnel. In addition, strain gages and motion pictures of tail deflections were used to explore the general nature and order of magnitude of the fluctuating tail loads in accelerated stalls. The results indicated that, if the airplane were not stalled, a total up load of 5700 pounds would be experienced on the horizontal tail in an 8g pull-up and that, with power on, this load would be distributed unsymmetrically with about 800 pounds more up load on the left stabilizer than on the right. When stalling occurred there was an initial abrupt increase in the up tail load of the order of 100 percent of the previous load, which was followed by repeated load and stress variations due to tail buffeting. Under the condition of tail buffeting, the possibility of excessive stresses due to resonance was indicated.

NACA Wartime Report

NACA Wartime Report PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 716

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Wartime Report

Wartime Report PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 622

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Reproductions of reports, some declassified, of research done at Langley Memorial Aeronautical Laboratory during World War II. The order of reports does not represent when they were chronologically issued. Reference to the original version of each report is included.

Index of NACA Technical Publications

Index of NACA Technical Publications PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 388

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Wartime Report

Wartime Report PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 440

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Flight Studies of the Horizontal-tail Loads Experienced by a Fighter Airplane in Abrupt Maneuvers

Flight Studies of the Horizontal-tail Loads Experienced by a Fighter Airplane in Abrupt Maneuvers PDF Author: Langley Aeronautical Laboratory
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 16

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Book Description
Flight measurements were made on a fighter airplane to determine the approximate magnitude of the horizontal tail loads in accelerated flight. In these flight measurements, pressures at a few points were used as an index of the tail loads by correlating these pressures with complete pressure-distribution data obtained in the NACA full-scale tunnel. In addition, strain gages and motion pictures of tail deflections were used to explore the general nature and order of magnitude of the fluctuating tail loads in accelerated stalls. The results indicated that, if the airplane were not stalled, a total up load of 5700 pounds would be experienced on the horizontal tail in an 8g pull-up and that, with power on, this load would be distributed unsymmetrically with about 800 pounds more up load on the left stabilizer than on the right. When stalling occurred there was an initial abrupt increase in the up tail load of the order of 100 percent of the previous load, which was followed by repeated load and stress variations due to tail buffeting. Under the condition of tail buffeting, the possibility of excessive stresses due to resonance was indicated.

Analytical Method of Determining Transmission of Particles and Radiation Through Great Thickness of Matter

Analytical Method of Determining Transmission of Particles and Radiation Through Great Thickness of Matter PDF Author: A. R. Bobrowsky
Publisher:
ISBN:
Category : Mathematical analysis
Languages : en
Pages : 668

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Book Description
A matrixc method of determining transmission, scattering, and absorption of radition, such as gamma rays and neutrons, is presented in this report.

Technical Note - National Advisory Committee for Aeronautics

Technical Note - National Advisory Committee for Aeronautics PDF Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 816

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