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] .

Union Pacific 6936 is an EMD DDA40X locomotive built for the Union Pacific Railroad (UP). 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 …

Dec 16, 2024 · The DDA40X was an experimental, high-horsepower diesel locomotive designed by Electro-Motive for Union Pacific during the late 1960s. It received its classic nickname as the "Centennial" to commemorate the 100th anniversary of the completion of the Transcontinental Railroad at Promontory Point, Utah.

Jan 15, 2003 · Weighing in at 270 tons, the DDA40X was labeled as 'The World's Largest and Most powerful Diesel Electric Locomotive'." All of the Centennial units were equipped to operate at 90 miles per hour, using EMD's standard high speed 59:18 gear ratio.

May 5, 2022 · EMD DDA40X: In 1968, Union Pacific purchased 50 20-cylinder, 3,600 hp EMD SD45s for high-speed service. However, the units did not meet management’s expectations in that role. So, UP commissioned EMD to design and build a locomotive that would develop more horsepower than the DD35, U50, or C855 models.

The Electro Motive Division DDA40X (nicknamed "Centennial") is a 6,600 hp, twin-engine (consisting of two modified 3,300 hp 16-645E3A engines), eight-axle diesel locomotive built specially for the Union Pacific Railroad (UP) from 1969 to 1971.

Nov 5, 2019 · It has two 654E3 16 cylinder diesel engines, built by General Motors that produce 3,300 horsepower each. These locomotives were some of the most successful, most loved, and most reliable...

Jan 29, 2025 · 495 likes, 20 comments - khalifazero on January 29, 2025‎: "نمبر وان دي ولا حاچو".

Dec 17, 2009 · Bachmann’s N scale Union Pacific DDA40X shares many features with its larger cousin. The model’s dimensions are correct, the plastic body is nicely molded, and the paint job is sharp. Twin can motors with flywheels power all eight axles. The model has enough drawbar pull to haul a good-sized train.

Experience the joy of assembling this classic diesel locomotive model and immerse yourself in the captivating world of the steam era. This model faithfully replicates the original train's design, featuring metallic painted parts in key areas for enhanced realism and detail.