xfoil: xfoil (interactive program for design and analysis of airfoils) xfoil: xfoil: XFOIL is an interactive program for the design and analysis of xfoil: subsonic isolated airfoils. It consists of a collection of xfoil: menu-driven routines which perform various useful functions, such as xfoil: viscous (or inviscid) analysis of an existing airfoil, design and xfoil: redesign by interactive modification of surface speed distributions xfoil: or geometric parameters, blending airfoils, plotting, saving, and xfoil: reading geometry and polars. xfoil: xfoil: Homepage: http://web.mit.edu/drela/Public/web/xfoil/