This paper presents detailed wind tunnel tests data taken on six airfoils having application to small wind turbines. In particular, lift, drag and moment measurements were taken at Reynolds numbers of 100,000, 200,000, 350,000 and 500,000 for both clean and rough conditions. In some cases, data was also taken at a Reynolds number of 150,000. The airfoils included the E387, FX 63-137, S822, S834, SD2030, and SH3055. Prior to carrying out the tests, wind tunnel flow quality measurements were taken to document the low Reynolds number test environment, and also oil flow visualization data and performance data were taken on the E387 for comparison with measurements taken at NASA Langley in the Low Turbulence Pressure Tunnel. The new results compare favorably with the benchmark NASA data. Highlights of the performance characteristics of the six airfoils are then discussed.