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Using the optical system equation, the impact of a change in wavelength is determined. The rms phase variation at output aperture is critical and must be reduced by an amount equivalent to reduction in wavelength. If turret size is scaled with wavelength, the distortion due to the inviscid flow remains constant. Decreased wavelength offers the flexibility of greatly reduced turret weight, volume, and aerodynamic drag. Multiple turrets become feasible on an aircraft. The distortion due to the turbulent boundary layer becomes magnified by reduction of wavelength; however, if the turbulent boundary layer originates on the turret and if the turret is scaled, the boundary layer thickness decreases. Distortion becomes less significant in this case.
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Lasers in aeronautics, Turbulent boundary layer, LasersShowing 1 featured edition. View all 1 editions?
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Edition Notes
"NPS67-80-003"--Cover.
"March 1980."--Cover.
Title from cover.
"Prepared for: Air Force Weapons Laboratory/ARLB, Kirtland Air Force Base, NM, 87117."
Includes bibliographical references (p. 21-22)
"Approved for public release; distribution is unlimited"--Cover.
Technical report; 1980.
ck/ 6/10/09.
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- Created July 26, 2014
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May 21, 2020 | Edited by CoverBot | Added new cover |
July 26, 2014 | Created by ImportBot | Imported from Internet Archive item record |