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Development of laminar flow control wing surface porous structureIt was concluded that the chordwise air collection method, which actually combines chordwise and spanwise air collection, is the best of the designs conceived up to this time for full chord laminar flow control (LFC). Its shallower ducting improved structural efficiency of the main wing box resulting in a reduction in wing weight, and it provided continuous support of the chordwise panel joints, better matching of suction and clearing airflow requirements, and simplified duct to suction source minifolding. Laminar flow control on both the upper and lower surfaces was previously reduced to LFC suction on the upper surface only, back to 85 percent chord. The study concludes that, in addition to reduced wing area and other practical advantages, this system would be lighter because of the increase in effective structural wing thickness.
Document ID
19870019069
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Klotzsche, M. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Pearce, W. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Anderson, C. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Thelander, J. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Boronow, W. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Gallimore, F. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Brown, W. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Matsuo, T. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Christensen, J. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Primavera, G. (McDonnell-Douglas Corp. Long Beach, CA, United States)
Date Acquired
September 5, 2013
Publication Date
July 1, 1984
Subject Category
Aeronautics (General)
Report/Patent Number
NAS 1.26:172424
NASA-CR-172424
Accession Number
87N28502
Funding Number(s)
CONTRACT_GRANT: NAS1-17506
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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