Yes, when UP 4014 was climbing the 2% grade at Dutch Flat, you can hear the diesel notching up to lessen the load on The Big Boy. This is to reduce the amount of stress and wear on the steam locomotive since parts and maintenance are far more expensive than compared with a diesel.
Great shots! And really cool seeing you at Newcastle!
It was greating seeing you out there too! Hope you enjoyed chasing the Big Boy!
This clip I see a role of diesel locomotive helper to pull the train on climping route.
Yes, when UP 4014 was climbing the 2% grade at Dutch Flat, you can hear the diesel notching up to lessen the load on The Big Boy. This is to reduce the amount of stress and wear on the steam locomotive since parts and maintenance are far more expensive than compared with a diesel.