lep-3.28 version Linux 64bit (2026-05-01) Read last updates here: man/Updates_log.txt man/lep-3.27+ 3.28 - update.pdf lep/ contains source code and executable file man/ contains some help files and internal data for development NaN/ NaN problem solution png/ contains captures pre/ Pre-processor version 1.6 stl/ contains .stl surfaces xflr5/ contains .xwimp and .dat for use with xflr5 dxf/ final edited dxf ac/ airfoil converter http://laboratoridenvol.com/leparagliding/manual.en.html