The Sd-45's appear to be all gone. MRL put a lot of effort into making their new EMD units work over the top. But before the electronic controls, the NP hired a lot of operators.
Not possible. Virtually all westbounds require 4-5 unit helpers. No way to make those unmanned DPUs as they have to return to Helena to assist the next train. And they're not needed anymore once they top the summit.
Right now there's a 5.9 Cummins guy bragging to his buddies how he made 2000HP on the dyno when in reality he has an air intake and a tuner making 350 horses. LOL. These locomotives are making some power.
That’s one long train 🚂 I think I counted eight engines and lost count of the number of wagons. Was that goal they were carrying? Looks like no ventilation shafts in the tunnel
Looks like decreasing levels of O2 for the following units in the tunnel. The lead engine gets pretty clean air, but the following units are using air with decreased levels of O2 and causes incomplete combustion of the fuel on the trailing units, which the reason for the black smoke. When the engines exit the tunnels, the O2 levels return to normal and the exhaust on the following units clears up. RR diesels really use a lot of air as well as fuel when running at full throttle.
@@KandWRailroader, I don't know. Looking at the video, the lead cab comes out of the tunnel fairly smoke free. Being back in one of the trailing cabs is another matter, as anyone back there would need some protection.
Utah railway had some locomotives with 3600 series caterpillar engines and when the train would get into the tunnel all the subsequent engines would start shutting down cause the engine would intake that much air. So I can imagine it’s not the air filters as it is the lack of air flow to properly supply the intake of all those engines in the tunnel.
With all that smoke I thought it was a Russian train. Seriously though, I got seasick watching because of all the camera movement and zooming. A tripod would help, and no zooming. Otherwise, it was a great video.
When cprail built mcdonald tunnel 1980s they found out trains stall due exhaust was not big enough pick up smoke from locomotive so they have upgrade systems it was hell cost fix that yup millions overbudget for this small details put learning curve for cprail on new tunnels.😮
Ma le locomotive intercalate e quella di spinta in coda sono presenziate da macchinisti o no...? / But are the interleaved locomotives and the pusher locomotives manned by drivers or not...?
