Compressors cascade test

Herrig, L.J., Emery, J.C., and Erwin, J.R., Systematic Two-Dimensional Cascade Tests of NACA 65 Series Compressor Blades at Low Speed, NACA R.M. E 55H11 (1955). 

The original work by NACA and NASA is the basis on which most modern axial-flow compressors are designed. Under NACA, a large number of blade profiles were tested. The test data on these blade profiles is published. The cascade data conducted by NACA is the most extensive work of its kind. In most commercial axial-flow compressors NACA 65 series blades are used. These blades are usually specified by notation similar to the following 65-(18) 10. This notation means that the blade has a lift coefficient of 1.8, a profile shape 65, and a thickness/chord ratio of 10%. The lift coefficient can be directly related to the blade camber angle by the following relationship for 65 series blades ... 

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