S833, S834, and S835 Airfoils: November 2001--November 2002

Research output: NRELSubcontract Report


A family of quiet, thick, natural-laminar-flow airfoils, the S833, S834, and S835, for 1 - 3-meter-diameter, variable-speed/variable-pitch, horizontal-axis wind turbines has been designed and analyzed theoretically. The two primary objectives of high maximum lift, relatively insensitive to roughness, and low profile drag have been achieved. The airfoils should exhibit docile stalls, which meetthe design goal. The constraints on the pitching moment and the airfoils thicknesses have been satisfied.
Original languageAmerican English
Number of pages91
StatePublished - 2005

Bibliographical note

Work performed by Airfoils, Inc., Port Matilda, Pennsylvania

NREL Publication Number

  • NREL/SR-500-36340


  • airfoil design
  • airfoils
  • horizontal-axis wind turbines (HAWT)
  • Pennsylvania State University
  • wind energy


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