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One of the most powerful electric locomotives ever built, it also is the most powerful (short term) single-frame locomotive ever built (currently [when?] its maximum short term power is limited to 9,000 kilowatts (12,069 hp) [8]); It has immense short term power with a tractive effort of 312 kN up to a speed of 140 km/h (87 mph). DB Class 151
The EMD DDA40X is a 6,600 hp (4,943 kW) D-D locomotive, built by EMD from 1969 to 1971 exclusively for the Union Pacific Railroad. [1] It is the most powerful diesel–electric locomotive model ever built on a single frame, having two 16-645E3A diesel prime movers. [2]
The first ten units were originally numbered 7000-7009. 7000 was the first AC6000CW ever built. All were converted to AC4460CW units and renumbered to 6888-6968. They were classified as C44ACCCA. In 2023, all were rebuilt to C44ACM. 7510-7554 45 July-December 1998 7555-7579 25 January 2001 Convertible 7336-7405 70 November 1995-September 1996
They are unique in that they are actually two power units on a single 98-foot-long (30 m) frame, and are noted as being the largest diesel locomotives in the world. The locomotives weighed 542,432 lb (246,043 kg) and utilized two EMD 645E3A V-16 diesel engines, each rated at 3,300 hp (2,500 kW), for a combined rating of 6,600 hp (4,900 kW ...
Union Pacific 6936 is an EMD DDA40X locomotive built for the Union Pacific Railroad ().Previously a part of UP's heritage fleet, 6936 was for several decades the last remaining operational "Centennial" type, and thus the largest operational diesel-electric locomotive in the world.
Train fans turned out in abundance. Here’s how you can still see it before it leaves the Sacramento area
The ALCO Century 855 was a model of 5,500 hp (4,101 kW) diesel-electric locomotive built in 1964 by the American Locomotive Company for the Union Pacific.The locomotive was notable for being ALCO's most powerful diesel-electric locomotive and, at the time, the most powerful diesel locomotive ever built, [1] being surpassed by the 6,600-horsepower (4,922-kilowatt) EMD DDA40X in April 1969.
Union Pacific’s No. 4014 steam locomotive is a massive 132-foot long engine that has been touring the rails of middle America since August. See ‘Big Boy,’ world’s largest steam locomotive ...