NDLI: Flight experiences with laminar flow

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Flight experiences with laminar flow

Content Provider	NASA Technical Reports Server (NTRS)
Author	Holmes, Bruce J.
Copyright Year	1986
Description	A review of natural laminar flow (NLF) flight experiences over the period from the 1930's to the present has been given to provide information on the achievability and maintainability of NLF in typical airplane operating environments. Significant effects of loss of laminar flow on airplane performance have been observed for several airplanes, indicating the importance of providing information on these changes to laminar flow airplane operators. Significant changes in airplane stability and control and maximum lift were observed in flight experiments with the loss of laminar flow. However, these effects can be avoided by proper selection of airfoils. Conservative laminar flow airfoil designs should be employed which do not experience significant loss of lift (caused by flow separation) upon the loss of laminar flow. Mechanisms have been observed for the effects of insect accumulation, flight through clouds and precipitation, and propeller slipstreams on laminar flow behavior. Fixed transition testing, in addition to free transition testing, is recommended as a new standard procedure for airplanes with surfaces designed to support laminar flow.
File Size	1693756
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880014360
Archival Resource Key	ark:/13960/t43r5rd0s
Language	English
Publisher Date	1986-05-01
Access Restriction	Open
Subject Keyword	Aircraft Design, Testing And Performance Surveys Flight Tests Propeller Slipstreams Aircraft Stability Drag Reduction Insects Laminar Flow Clouds Meteorology Airfoils Aircraft Design Lift Aircraft Control Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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