Originally Posted by steam fan:
I'm sure that once it's converted to oil there will be no problems, as the UP seems to always send a diesel out with the steam engines to help with DB and fuel mileage.
Not to mention the UP passenger set is only about 15 or so cars, plus a couple canteens.. probably what, 2000 tons or less?
Actually it is a bit more difficult to fire the big machines, i.e. 3985, when they are NOT worked sufficiently hard enough to maintain a good exhaust with a resulting draft for the fire. Prior to 2011, many UP executive train sets behind either 844 or 3985 exceeded 15 passenger cars. The Denver Post Cheyenne Frontier Days Special has historically been over 20 plus cars, which makes the 844 AND MUed the DDA40X work to full throttle capacity in order to maintain the track speed and tight schedule.