It's become clear that FreeCAD doesn't offer much in the way of aerodynamic shapes.  They've focused on 2D shapes, gears, & repeated primitives like coils.   It's manely a python front end for running scripts which actually do the drawing.  Over time, more common scripts were organized by users into "workbenches".

Airfoils are specifically made by importing a cross section from another program & extruding or by just importing points from another program.  Getting a blended wing body is especially problematic.

It's a pain that the python toolkit doesn't properly draw the cursor, so entering numbers in a textbox randomly causes the camera to move.  Then, it drops button release events when holding shift, making camera navigation impossible.  Linux toolkits are really not much better than 20 years ago.  Like every modern program, it runs in a busy wait, because if 1 out of 18 cores is at 100%, no-one cares.  It's just hard on us old timers who still pay their own electric bill & have 4 core CPUs.

BFS models are everywhere & nowhere.  Most seem to be from 1 guy.

http://www.humanmars.net/