Having read this I'm both impressed and convinced the whole thing makes no sense and is just a glitch in the matric.Swervin_Mervin wrote: ↑Wed Jun 23, 2021 4:48 pm As someone that sometimes struggles with explanations of engineering concepts (I have to see to get a feel for the understanding) it seems to me like it should be a mix of both concepts i.e. both tacking sail and fan, and that the mix of the two varies with speed, moving more towards the latter once above wind speed.
https://en.wikipedia.org/wiki/High-performance_sailing I've got apparent wind, pardon me.