Mudcat Café message #4052516

The Mudcat Café ^TM
Thread #154310 Message #4052516
Posted By: Joe Offer
14-May-20 - 06:07 PM
Thread Name: BS: Resurrection of a Big Boy 4-8-8-4 locomotive
Subject: RE: BS: Resurrection of a Big Boy 4-8-8-4 locomotive

Here's a fascinating YouTube video, titled How Gresley's A4 Pacifics became the World's Fastest Steam Engines:
https://www.youtube.com/watch?v=hp7k36hXeb0

Seems to me that there's a difference in the connecting rods between US and UK steam locomotives, but I'm not exactly sure what that difference is. The connecting rods on UK locomotives seems to be continuously horizontal, and the US connecting rods look different. What's the difference, and why?

-Joe-