S814 and S815 Airfoils: October 1991--July 1992

Research output: NRELSubcontract Report


Two thick laminar-flow airfoils for the root portion of a horizontal-axis wind turbine blade, the S814 and S815, have been designed and analyzed theoretically. For both airfoils, the primary objectives of high maximum lift, insensitive to roughness, and low profile drag have been achieved. The constraints on pitching moment and airfoil thicknesses have been satisfied.
Original languageAmerican English
Number of pages43
StatePublished - 2004

Bibliographical note

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

NREL Publication Number

  • NREL/SR-500-36292


  • airfoils
  • horizontal-axis wind turbines (HAWT)
  • wind turbine airfoils


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