UP 6916

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Union Pacific 6916
Union Pacific 6916.JPG
Type and origin
Power type Diesel-electric
Builder EMD
Model DDA40X
Specifications
AAR wheel arr. D-D
Gauge 4 ft 8 12 in (1,435 mm)
Performance figures
Safety systems Leslie S3LR
Career
Operator(s) Union Pacific
Number(s) 6916
Nicknames "Centennial"
Disposition Static Museum Display, Utah State Railroad Museum, Ogden, Utah

Union Pacific 6916 is a DDA40X diesel locomotive built for the Union Pacific Railroad. It now resides in the Eccles Rail Center at the Utah State Railroad Museum in Ogden, Utah.

History[edit]

UP 6916 was built by the General Motors Electro-Motive Division in November 1969 as one of a series of 47 locomotives of the same type. It weighs 542,432 pounds and utilizes two Model 645E3A V-16 diesel engines, each rated at 3,300 horsepower, for a combined rating of 6,600 horsepower. Maximum speed was set at 80 miles per hour. By 22 June 1980, the 6916 was placed in storage due to a decrease in traffic. It was returned to service soon after,[1] but by 1983, most of the DDA40X types were stored out of service in Yermo, California. In 1984, a motive power crunch caused Union Pacific to reinstate 25 of the locomotives, including the 6916.[2] The locomotive was finally retired from service on 16 May 1985, and internally gutted as a parts source for SD40 and SD40-2 diesels.[1] The unit was donated "as is" to the Utah State Railroad Museum in 1986.[3]

The DDA40X locomotive type was nicknamed "Centennial" after the 100th anniversary of the driving of the Golden Spike in 1869, which signified the completion of the Transcontinental Railroad.[4] They are unique in that they are actually two power units on a single 98-foot frame, and are noted as being the largest diesel locomotives in the world. The 6916 is one of thirteen surviving Centennials.[5]

In popular culture[edit]

  • UP 6916 was featured on the cover of the March 1985 issue of Pacific RailNews.
  • The unit served as the prototype for an O-scale brass model released by Ajin and imported to the United States by Overland Models in 1999.[1]
UP 6900, showing the split between the two operating units 
The cab of the 6916 
Leslie type S3LR 3-chime air horn 

See also[edit]

Union Pacific 6936

Union Pacific 6922

References[edit]

  1. ^ a b c Reisdorff, James J and Bartels, Michael M. (January 2011). The Union Pacific Centennial Locomotive. South Platte Press. 
  2. ^ Strack, Don. "Union Pacific DDA40X Centennial Locomotives". Retrieved 7 April 2011. 
  3. ^ Witten, Lee. "Locomotives: UP 6916". Retrieved 7 April 2011. 
  4. ^ "Wes". "Union Pacific Centennials". Retrieved 7 April 2011. 
  5. ^ Weeks, John A. "DDA40X-The Centennial Survivors". Retrieved 7 April 2011.