Initial release

This is a blender file containing a number of design tools using Blender's Geometry Nodes. It's a work in progress, but it allows for a fairly non-destructive or parametric workflow while designing a 3d printed model aircraft.
Two addons are included: AddAirfoil - import an Airfoil .data file, and Export_xflr5 - export to the vortex analysis program xflr5