Watching the videos of the 844 and 765 in action, I was wondering with all the side rods, pistons, valves and such, has there been any part failures that may have broken at one time or another while flying down the track?
Not necessarily picking out the above mentioned locos but any other where there may have a broken side rod and punctured the boiler, or broken piston going through and destroying a steamchest. Or just forgetting to fill up an oil cup burning up a bearing and locking up, causing a rod to break.
I am just amazed at these machines, how they were built, without computers and all the side rods, pistons, valves all work in sync doing 90 mph something had to have broken causing damage.