One of my students had a great challenge to model this form inside of Sketchup, so I made a tutorial on that.
Plugins used in this tutorial:
1)Curviloft: https://sketchucation.com/pluginstore...
2)FredoTools: https://sketchucation.com/pluginstore...
3)Bezier Spline: https://sketchucation.com/pluginstore...
4)CleanUp: https://sketchucation.com/pluginstore...
5)Solid Inspector: https://sketchucation.com/pluginstore...