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xkcd #3193: Sailing Rigs
(imgs.xkcd.com)
Title text:
I wanted to make the world's fastest yawl, so I made the aft sail bigger, but apparently that means it's not a yawl anymore! It's a real ketch-22.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3193/
I can't quite identify the point at which this turns from real to parody
Schooner is the last real one I think.
The Flettner is real; Maybe it's added lower just to blur the line.
Not on a sailing ship though.
Looks like a sailing ship to me…
They rotate not by harvesting the wind but by pushing against it. I.e. are motorized.
correct