Photo ID: 105869 Date Shot Photo By Monday, March 7, 2016 Kevin Morgan Location Times Viewed Arvada Siding (MP 6 to MP 7) Denver, CO 1619 (1 Comment Posted) Subdivision Railroad Moffat Tunnel (UP) Electro-Motive Division When out testing new prototypes, EMD has a "test car" that they typically splice in between new units. Think of it as a rolling command center for EMD. It allows them to closely monitor the performance of the new units. Here, EMDX 820 is cut in between two new SD70ACe-T4 prototypes. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 105868 Date Shot Photo By Monday, March 7, 2016 Kevin Morgan Location Times Viewed Denver, CO 1727 (Add a Comment) Subdivision Railroad Moffat Tunnel (UP) Electro-Motive Division EMD's SD70ACe-T4 is definitely boxier than its predecessor. Many people believe that EMD and GE designs are slowly converging and that it is becoming more and more difficult to tell them apart. However, this is still clearly very close to an SD70ACe. The long hood is a little taller (and more square) in front of the radiator housing. While it is difficult to tell from the ground, the SD70ACe-T4 has three radiator fans whereas the SD70ACe only has two. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 105867 Date Shot Photo By Monday, March 7, 2016 Kevin Morgan Location Times Viewed Arvada Siding (MP 6 to MP 7) Denver, CO 1438 (Add a Comment) Subdivision Railroad Moffat Tunnel (UP) Union Pacific, Electro-Motive Division Whenever EMD or GE roll out a new unit, the prototypes almost always wind up on the Moffat Tunnel Sub. Why? It is the highest active standard gauge mainline in the United States, and it is loaded with tunnels. This allows for both high altitude testing and tunnel performance testing. EMD's Tier-4 compliant SD70ACe-T4 is no exception. Here, a special train escorts two such prototypes and an EMD test car west on the Moffat. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 105858 Date Shot Photo By Friday, March 4, 2016 Kevin Morgan Location Times Viewed BNSF Engine House Denver, CO 1757 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division For decades, EMD has used either SD## or GP## as the prefix for its models. It seems that EMD is reluctant to go to a three-digit number (e.g. SD100), so all their new units in the last 15 years (basically since the SD90) have been "SD70ACe" followed by a suffix. That continues with the latest unit, designated an SD70ACe-T4. As you probably guess, the "T4" stands for "Tier 4", and indicates the unit is EPA Tier-4 compliant. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 105857 Date Shot Photo By Friday, March 4, 2016 Kevin Morgan Location Times Viewed BNSF Engine House Denver, CO 2008 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division Introducting the SD70ACe-T4. This is one of four prototypes for the first EPA Tier-4 compliant engine produced by EMD. While it looks essentially like an SD70ACe externally, internally it is an entirely different animal. A few things to note externally. First, EMD is bringing back the teardrop windshield. A welcome change for both crews and railfans alike. Next, note the new fabricated trucks. Last, the long hood is higher and "boxier" ahead of the radiator housing. Internally, the prime mover is brand new. Traditionally, EMD prime movers have been two-stroke and 16 cylinders. This new prime mover is four-stroke and 12 cylinders. It still generates the 4400 HP the SD70ACe generated. On top of it all, the demonstrator paint scheme looks darn nice, too! Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 105856 Date Shot Photo By Friday, March 4, 2016 Kevin Morgan Location Times Viewed BNSF Engine House Denver, CO 1898 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division EMDX 1502 and 1503 sit near BNSF's Engine House along with EMD's test car. These units carry the designation "SD70ACe-T4" and they are the first Tier-4 compliant units produced by EMD. These are prototypes that are undergoing extensive testing by EMD. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101984 Date Shot Photo By Sunday, April 13, 2008 Kevin Morgan Location Times Viewed 38th Street Denver, CO 1842 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division EMD 3 is currently one of 99 SD60's being leased to BNSF on a long term agreement. EMD 3 was involved in a collision at a grade crossing a few days earlier. Note that the plow is missing from the unit and there is some pretty good damage around and above the anti-climber! Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101832 Date Shot Photo By Saturday, January 19, 2008 Kevin Morgan Location Times Viewed 38th Street Denver, CO 2248 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division One of only four SD60MACs ever created, the four units wore very unique paint schemes when they were delivered to Burlington Northern. Today, the units still wear (most of) their original paint. A few EMD logos have been added (as BN returned them to EMD). EMDX 9501 is sitting here at the House in Denver, waiting to head north toward Seattle. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101831 Date Shot Photo By Saturday, January 19, 2008 Kevin Morgan Location Times Viewed 38th Street Denver, CO 1884 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division Sitting outside of BNSF's house in Denver, this unit is one of only four like it ever built. When first developing AC traction motors, EMD used four SD60M's as prototypes, creating the only SD60MACs ever created. The units were delivered to Burlington Northern as BN 9500 to BN 9503. The units were ultimately returned to EMD and are typically found at the testing facility outside Pueblo. Here, EMDX 9501 is headed north toward the Seattle area for unknown reasons. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101641 Date Shot Photo By Saturday, October 20, 2007 Kevin Morgan Location Times Viewed Avondale Boone, CO 1841 (Add a Comment) Subdivision Railroad Pueblo (BNSF) Electro-Motive Division East of Pueblo, you can find the Transportation Testing Center, which is capable of performing just about any test you can think of on a locomotive. At the entrance to the facility, EMDX 70 - one of the first SD70ACes - sits idling by itself along BNSF's main track. Why it was here, alone? I do not know... Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101293 Date Shot Photo By Saturday, April 21, 2007 Kevin Morgan Location Times Viewed 38th Street Denver, CO 2039 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division A view of the back end of EMDX 70. This was one of the original prototype SD70ACe's created by EMD back in 2004. The unit was sitting shut down near BNSF's 38th Street facilities on this Saturday morning. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 101292 Date Shot Photo By Saturday, April 21, 2007 Kevin Morgan Location Times Viewed 38th Street Denver, CO 2101 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division This unit has seen far better days! In fact, this unit was up at East Portal (of the Moffat Tunnel) almost exactly three years ago on April 25, 2004. Here is a shot of the unit on that day. This SD70ACe, now listed an EMDX 70 was originally GM 70, one of the first SD70ACe prototypes. Note that the unit has undergone some serious modifications in the last three years...and the paint has not exactly been maintained! Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 100343 Date Shot Photo By Saturday, January 1, 2005 Kevin Morgan Location Times Viewed North Yard North Yard, CO 2120 (Add a Comment) Subdivision Railroad Yard Shots Electro-Motive Division In early 2004, EMD released four SD70ACe demonstrators. These SD70's were "Tier-2 Emission's Compliant", and had AC traction motors. Now, in late 2004, the DC traction motor version (SD70M-2) has been built. The prototypes are GM 74 and GM 75. Here, GM 75 sits in North Yard waiting to head south to EMD's testing facility. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 100273 Date Shot Photo By Saturday, May 1, 2004 Tyler Eaton Location Times Viewed Burns Burns, CO 1915 (Add a Comment) Subdivision Railroad Glenwood Springs (UP) Electro-Motive Division EMDs new SD70ACe test units (GM 70 and GM 71) are seen crossing over the Colorado river on a bridge near Burns on the Dotsero Cutoff. The locomotives were undergoing road testing on the eastbound MGJNY. Email Questions or Comments to the Webmaster or add a comment to the picture. Photo ID: 100244 Date Shot Photo By Sunday, April 25, 2004 Kevin Morgan Location Times Viewed East Portal East Portal, CO 1811 (Add a Comment) Subdivision Railroad Moffat Tunnel (UP) Electro-Motive Division Nose of the new EMD SD70ACe from a different angle. Email Questions or Comments to the Webmaster or add a comment to the picture.

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