Originally Posted by
Krazy Karl
I have always felt that prop design was a dark art, but like anything else science and math are always or should be involved. I recently read the book We Were the Ramchargers and nothing they did was by trial and error, solid engineering with all the math was done before they ever picked up a tool.
Your comment on how an airfoil works is non-intuitive is so true. I also sail and the number of people who think the wind pushes on the sail is unbelievable. In fact when going down wind, when this is the case the boat is quite slow. Great article.
kk
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