The mainstay of todays Army rail operations is the GP9. They are affectionatly knowen as "Big Red" due to the distinctive red and yellow paint scheme. These locomotives are located at military bases and ammo depots all across the United States.
The original weighs approximatly 250,000 Lbs. It is powered by a 16 cylinder, 1,600 horse power, blowen diesel engine driving the main generator that sends 600 volts DC to the traction motor on each of it's 4 axels.
The ABS version weighs considerably less and operates off of a far more forgiving 9 volts DC!!!
A .MPD file and real world Army rail photos are availible on my Brickshelf pages.
GP9.V2- This model was reliable enough at home, however I wanted to let it run for long periods, unattended on club layouts. I used two motors and designed trucks with the coupler attached for added flexability.