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UIUC Low-Speed Airfoil TestsUIUC Low-Speed Airfoil Tests

The goals of the UIUC Low-Speed Airfoil Tests (UIUC LSATs) program are to design, analyze and wind tunnel test airfoils for low Reynolds number applications. The UIUC Applied Aerodynamics group has been a leader in this research area with new airfoil designs being applied to unmanned aerial vehicles, small wind turbines, model aircraft and many other applications. Over 200 low Reynolds number airfoils, many of them new designs, have been built and validated in the UIUC Subsonic Aerodynamics Lab 3x4 ft wind tunnel with the results being documented in books, reports, and journal/conference publications.

The airfoil performance data from these tests are have been published in several books that are available in pdf format here. Printed copies published by SoarTech Aero can still be purchased online through a donation to our ongoing wind tunnel test program (see below).

We maintain answers to our frequently asked questions here: LSATs FAQ.

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Summary of Low-Speed Airfoil Data BooksSummary of Low-Speed Airfoil Data Books

 
Selig, M.S., Guglielmo, J.J., Broeren, A.P., and Giguère, P., Summary of Low-Speed Airfoil Data, Vol. 1, SoarTech Publications, Virginia Beach, VA, 1995, 292 pages. Wind tunnel data on 34 airfoils tested at Reynolds Numbers ranging from 30,000 to 500,000.
[Download Vol. 1]
[Donate to our research, and receive printed copy of Vol. 1]

Selig, M.S., Lyon, C.A., Giguère, P., Ninham, C.N., and Guglielmo, J.J., Summary of Low-Speed Airfoil Data, Vol. 2, SoarTech Publications, Virginia Beach, VA, 1996, 252 pages. Wind tunnel data on 25 airfoils tested at Reynolds Numbers ranging from 40,000 to 400,000.
[Download Vol. 2]
[Donate to our research, and receive printed copy of Vol. 2]

Lyon, C.A., Broeren, A.P., Giguère, P., Gopalarathnam, A., and Selig, M.S., Summary of Low-Speed Airfoil Data, Vol. 3, SoarTech Publications, Virginia Beach, VA, 1998, 418 pages. Wind tunnel data on 37 airfoils tested at Reynolds Numbers ranging from 60,000 to 500,000.
[Download Vol. 3]
[Donate to our research, and receive printed copy of Vol. 3]

Selig, M.S. and McGranahan, B.D., Wind Tunnel Aerodynamic Tests of Six Airfoils for Use on Small Wind Turbines, National Renewable Energy Laboratory, NREL/SR-500-34515, Oct 2004, 133 pages. aka Summary of Low-Speed Airfoil Data - Volume 4. Six airfoils tested at Reynolds Numbers ranging from 100,000 to 500,000.
[Download Vol. 4 / NREL Report]

Williamson, G.A., McGranahan, B.D, Broughton, B.A., Deters, R.W., Brandt, J.B., and Selig, M.S., Summary of Low-Speed Airfoil Data, Vol 5, 2012, 363 pages. Airfoils: AG12, AG16, AG24, AG35-r, AG40d-02r with flap, AG455ct-02r with flap, CAL1215j, CAL2263m, CAL4014l, E387, flat plate airfoil with various leading-edge treatments, MA409, NACA 43012A, S1223 with Gurney flap, S8064, and S9000 with flap.
[Download Vol. 5]

SoarTech 8SoarTech 8 - Airfoils at Low Speeds

Also available here online and in printed format by SoarTech Aero Publications is the book Airfoils at Low Speeds (SoarTech 8), which includes wind tunnel data on 54 airfoils tested at Reynolds numbers ranging from 60,000 to 300,000. The book contains extensive commentary and analysis. Testing was performed at Princeton University during 1987 and 1988 by Michael Selig, John Donovan and David Fraser. This work was the important precursor to the low Reynolds number airfoil research at UIUC.

[Download Airfoils at Low Speeds (SoarTech #8)]
[Download SoarTech 8 tabulated airfoil data in zip format]
[Donate to our research, and receive printed copy of SoarTech #8]

Low Reynolds Number Airfoil Data and DocumentationLow Reynolds Number Airfoil Data and Documentation

Low Reynolds Number Airfoil PublicationsLSATsPubs

In addition to Vols 1-5, some low Reynolds number airfoil publications from our group are listed below.

LSATs ArchivesLSATsArchives

Some of our early newsletters/info and how we started is below. This stuff is old: