Union Pacific has retained only one of its 47 Centennial diesel electric locomotive, number 6936. The Centennial‘s were the largest diesel-electric locomotives ever built with two engines on one frame, delivering 6600 horsepower. Designed and built exclusively for the Union Pacific Railroad, the units were named in honor of the railroads centennial anniversary celebration in 1969. Accordingly, they were numbered in the 6900 series, from 6900 to 6946 The first Centennial was delivered in 1969, in time to participate in the Golden Ppike celebration in Utah. The remaining units were delivered during the next two years. They operated in fast freight service over most of the UP system. By 1980, Centennial locomotives were slowly withdrawn from service until their retirement in 1984. Twenty-five were returned to service briefly in the 80s, then retired from service in 1985 in favor of smaller, more efficient locomotives such as the SD60 and C40–8 Thirteen of the locomotives were donated for public display in various parks in museums. The locomotives most recent excursion was in 2015, when it helped the UP's trio of EMD E9 units at the annual Cheyenne Frontier Days event. It has not been used since, except on July 12, 2016, when helped to test UP 844, a steam locomotive being returned to service. Its dynamic brakes were used to simulate a load while being pulled. after the test, it was returned to storage at the Roundhouse in Cheyenne. Union Pacific has now donated the famous 6936 to railroading heritage of Midwest America. The first Centennial was delivered in 1969, in time to participate in the Golden Spike celebration in Utah. The remaining units were delivered during the next two years. They operated in fast freight service over most of the UP system. By 1980, Centennial locomotives were slowly withdrawn from service until their retirement in 1984. Twenty-five were returned to service briefly in the 80's, then retired from service in 1985 in favor of smaller, more efficient locomotives such as the SD60 and C40-8 Thirteen of the locomotives were donated for public display in various parks and museums. The locomotive's most recent excursion was in 2015, when it helped the UP's trio of EMD E9 units at the annual Cheyenne Frontier Days event. I 4 has not been used since, except on July 12, 2016, when helped to test UP 844, a steam comotive being returned to service. Its dynamic brakes were used to simulate a load while treair polled, 3, kies the rests, it was reumed to storage at the roundhouse in Chiged w.
Andy posing with Union Pacific Diesel Locomotive 6936 after its move from the Union Pacific Shop in Cheyenne, WY to the Railroading Heritage Museum of America. Union Pacific has retained only one of its 47 Centennial diesel electric locomotive, number 6936. The Centennial‘s were the largest diesel-electric locomotives ever built with two engines on one frame, delivering 6600 horsepower. Designed and built exclusively for the Union Pacific Railroad, the units were named in honor of the railroads centennial anniversary celebration in 1969. Accordingly, they were numbered in the 6900 series, from 6900 to 6946 The first Centennial was delivered in 1969, in time to participate in the Golden Ppike celebration in Utah. The remaining units were delivered during the next two years. They operated in fast freight service over most of the UP system. By 1980, Centennial locomotives were slowly withdrawn from service until their retirement in 1984. Twenty-five were returned to service briefly in the 80s, then retired from service in 1985 in favor of smaller, more efficient locomotives such as the SD60 and C40–8 Thirteen of the locomotives were donated for public display in various parks in museums. The locomotives most recent excursion was in 2015, when it helped the UP's trio of EMD E9 units at the annual Cheyenne Frontier Days event. It has not been used since, except on July 12, 2016, when helped to test UP 844, a steam locomotive being returned to service. Its dynamic brakes were used to simulate a load while being pulled. after the test, it was returned to storage at the Roundhouse in Cheyenne. Union Pacific has now donated the famous 6936 to railroading heritage of Midwest America. The first Centennial was delivered in 1969, in time to participate in the Golden Spike celebration in Utah. The remaining units were delivered during the next two years. They operated in fast freight service over most of the UP system. By 1980, Centennial locomotives were slowly withdrawn from service until their retirement in 1984. Twenty-five were returned to service briefly in the 80's, then retired from service in 1985 in favor of smaller, more efficient locomotives such as the SD60 and C40-8 Thirteen of the locomotives were donated for public display in various parks and museums. The locomotive's most recent excursion was in 2015, when it helped the UP's trio of EMD E9 units at the annual Cheyenne Frontier Days event. I 4 has not been used since, except on July 12, 2016, when helped to test UP 844, a steam comotive being returned to service. Its dynamic brakes were used to simulate a load while treair polled, 3, kies the rests, it was reumed to storage at the roundhouse in Chiged w.
