[megapatch]

This is the first time I felt that the title "Everything you need to know about..." actually was correct. I learned something and the text contained everything I ever might ever need to know about windsocks.

[sokoloff]

> A metal basket (or so called swivel frame) is placed on top of the mast, which can rotate 180 degrees horizontally.

Is there some reading of this that makes sense with the figure being 180° instead of 360°?

[ganafagol]

Even 360 degrees would be incorrect. That's how you would describe a construction that allows to do one full rotation and then stop. For example, tarsiers or owls can rotate their heads about 360 degrees.

But a windsock needs to be able to rotate over and over and over without bound. That's distinctly different from 360 degrees.

[telesilla]

15 minutes on a web search and I can't figure it out either. Any flight experts here?

[chrischattin]

If you want to dive deeper, here's way more than you ever wanted to know about windsocks:

https://www.faa.gov/documentLibrary/media/Advisory_Circular/...