Trains ( worldwide ) equipped with bogies type Bo'Bo' or Co'Co'?

Hello on30gn15,

Ref: your answer # 19 and #20.

Thank you for adding the links (y) . Very interesting to read all those articles :cool:

Kind regards

Kurt :)
Yes, thanks for these links. For the first time, I feel like I understand how a hydraulic transmission actually works. I've known about this transmission since the 1970s, but it's always been quite mysterious (what is a carden shaft? etc.)