United States Army Locomotive Number 4643 un-edited

This is an unedited photo of the #4643 United States Army General Purpose Locomotive (GP10) on duty in Hawthorne Nevada. The Ammunition Depot now has over 200 miles of railroad tracks.) Nearly all of Hawthorne's wartime buildings were erected as permanent structures. On 1 October 1977, the Ammunition Depot in Hawthorne, Nevada ended its 47 year allegiance to the U.S. Navy officially and became the Hawthorne Army Ammunition Plant.

This hybrid diesel locomotive is an incredible display of power and ingenuity. It combines some great mechanical technology, including a huge, 12-cylinder, two-stroke diesel engine, with some heavy duty electric motors and generators, throwing in a little bit of computer technology for good measure.

This 270,000-pound (122,470-kg) locomotive is designed to tow passenger-train cars at speeds of up to 110 miles per hour (177 kph). The diesel engine makes 3,200 horsepower, and the generator can turn this into almost 4,700 amps of electrical current. The four drive motors use this electricity to generate over 64,000 pounds of thrust.

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