S827 and S828 Airfoils; Period of Performance: 1994--1995

Research output: NRELSubcontract Report


A family of thick, natural-laminar-flow airfoils, the S827 and S828, for 40- to 50-meter, stall -regulated, horizontal-axis wind turbines has been designed and analyzed theoretically. The two primary objectives of restrained maximum lift, insensitive to roughness, and low profile drag have been achieved. The constraints on the pitching moments and the airfoil thicknesses have been satisfied. Theairfoils should exhibit docile stalls.
Original languageAmerican English
Number of pages54
StatePublished - 2005

Bibliographical note

Work performed by Airfoils, Inc., State College, Pennsylvania

NREL Publication Number

  • NREL/SR-500-36343


  • airfoil design
  • airfoils
  • Pennsylvania State University
  • wind energy
  • wind turbine


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