Heyho,
I honestly wish the internet had been around for longer, there's just so much stuff I'd love to do research on, but just can't find anything on the web.
Anyway, I recently stumbled upon this picture below and honestly, I have no idea what this is supposed to be. It looks like some sort of four-bladed flybar, but why would you need this on a rigid rotor? If anyone knows more about this helicopter, I'd greatly appreciate some enlightenment
Image source:
BK117 - Hubschrauber - Helicopter
Thanks!
Jonas