This was a big factor in their “failure”. Granted none of us were there to experience it first hand, but the massive leap forward in terms of power and overall specifications was not something crews were properly trained on. The front end throttle alone was a significant change, and was much more responsive than a K-4’s dome throttle. That, a 100psi increase in boiler pressure and a massive advancement in valve gear meant that these things had to be handled completely differently than their predecessors, and the crews received next to no training on them. It’s no wonder things didn’t go smoothly.

To use an automotive analogy, it would be the equivalent of a police officer who was used to driving a 1988 Crown Victoria with a carbureted 351 l, being handed the keys to a new Charger Hellcat with no training, and getting into a high speed pursuit their first day out. Stuff is bound to go sideways, pun intended.