Union Pacific DD40AX at Keeefick Park, Omaha, Nebraska, USA

- Image ID: H99G11
Union Pacific DD40AX at Keeefick Park, Omaha, Nebraska, USA
Richard Brown / Alamy Stock Photo
Image ID: H99G11
Union Pacific DD40AX at Keeefick Park, Omaha, Nebraska, USA. Nicknamed "Centennial" and "Big Jack", the DD40AX uses two diesel engines (each 3,300 hp and is the most powerful single-unit diesel locomotive ever built, it is also the longest single-unit diesel locomotive ever built.
Location: Keeefick Park, Omaha, Nebraska, USA.