Xfoil is a free and opensource prompt tool for aerospace engineering, created by MIT, useful to study 2D airflow.
You don't really need Xfoil4Mac. You can get Xfoil compiling the source, checking the dependiences, using Fink or DarwinPorts or... you can drag&drop Xfoil4Mac in your Applications Folder!
This program offers you medical information and human body illustrations.
