A Slow Cold Start For Big Boy #4014

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A Slow Cold Start For Big Boy #4014 | Train Fanatics Videos
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Union Pacific’s Big Boy 4014 quickly builds up a head of steam!

Early morning in Denver, Colorado in a driving snow storm provided the perfect opportunity to witness the initial buildup of boiler pressure Big Boy #4014 to begin the day. UP “Big Boy” 4014 runs up boiler pressure to 300 psi in order start moving the 1,250,000 lbs of locomotive and tender weight.

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Quick Facts about UP Big Boy 4014

  • Rail Line: Union Pacific
  • Driver diameters:-68 inches
  • Power type: 4-8-8-4 Steam Locomotive Class 4000
  • Builder: American Locomotive Company 1941
  • Coal Consumption: 22,000 lbs per hour (converted to oil)
  • Locomotive and tender weight: 1,250,000 lbs
  • Max Speed: 80 MPH !

Let us know if you have seen this magnificent locomotive in person. We would love to hear about your experience!

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