About U.S. Army 7100
This American Locomotive Company (Alco) S2, producing 1,000 horsepower, was built for the United States Army. It was delivered to the Volunteer Ordinance Works in Chattanooga in September 1943. The 7100 was used by the Tennessee Valley Authority (TVA) after being retired by the army. It was acquired by the Southern Appalachia Railway Museum (SARM) in 1999. TVRM acquired the 7100 in a trade with SARM in 2019. The locomotive is currently stored out of service.

Specifications:
Locomotive: U.S. Army 7100
Locomotive Type: Diesel-Electric
Operators: U.S. Army, Tennessee Valley Authority, Southern Appalachia Railway Museum, Tennessee Valley Railroad Museum
Model: S2
Builder: American Locomotive Company
Date Built: 1943
Locomotive Weight: 230,00 lb
Prime Mover: ALCO 539T
Fuel: Diesel
Horsepower: 1,000 hp
Status: Stored Out of Service