3 EMD SD70ACEs up front restart 12,000 ton train on a 2% Grade, Moffat Tunnel Subdivision, Colorado

This video does a good job of breifly explaining how freight trains operate in general and how efficient they are: A loaded BNSF Sand Train headed Westbound on the Moffat Tunnel Subdivision west of Denver, CO. I gets under way after waiting in the Tolland Siding for the Eastbound Winter Park Express and a freight train. After the tunnel vented, the dispatcher gave then a green signal and all 5 locomotives, including 3 SD70Ace on the front and an ES44 and SD70Mac on the rear (22,200 HP), started just about 12,000 tones (80 cars) up the 2% grade (1 in 50) toward the summit inside the Moffat Tunnel. To be fair the grade where the train stopped is about 1.6% average but after the train passes the camera the grade rises to % for next few miles to the Moffat Tunnel. Answers to FAQs and some general information: 1. First 3 locos: SD70Ace 4500hp (3,400 kW) 191,000 lbf starting tractive effort (850 kN) First rear loco: ES44AC 4400hp (3,300