Well, there was the Hobie Trifoiler. http://trifoiler.info/media/index.php?title=Main_Page http://trifoiler.info/media/index.php?title=Main_Page https://www.y

Well, there was the Hobie Trifoiler. http://trifoiler.info/media/index.php?title=Main_Page http://trifoiler.info/media/index.php?title=Main_Page https://www.youtube.com/watch?v=zXSgZCDVWOM https://www.youtube.com/watch?v=zXSgZCDVWOM I don't know if modern consumer-level designs are sophisticated enough to be using much CFD, but it definitely seems like the easy availability of CAD should be playing a role.