| Lima A-3149 and A-3171 | |
| Powertype: | Diesel-electric |
| Builder: | Lima-Hamilton Corporation |
| Buildmodel: | A-3149 (LS-750) A-3171 (LS-800) |
| Builddate: | April 1950 to June 1951 (A-3149) September 1950 (A-3171) |
| Totalproduction: | A-3149: 6 A-3171: 23 |
| Aarwheels: | B-B |
| Uicclass: | Bo′Bo′ |
| Length: | 47’ 10” (both) |
| Primemover: | Hamilton Engines and Machinery T69SA |
| Enginetype: | 4-stroke diesel |
| Aspiration: | Turbocharged |
| Cylindersize: | 9x |
| Cylindercount: | Inline 6 |
| Displacement: | 4580cuin |
| Generator: | Westinghouse 499A (both) |
| Tractionmotors: | Westinghouse 362D (4) (both) |
| Poweroutput: | 7500NaN0 or 8000NaN0 |
| Tractiveeffort: | 74,508 lbf (331.4 kN) |
| Locobrakes: | Straight air |
| Trainbrakes: | Air |
| Operator: | Cincinnati Union Terminal, Chicago River and Indiana, Chicago, Rock Island and Pacific |
| Operatorclass: | CUT- DES-10w (A-3149) CR&I- DES-19a (A-3171) |
| Locale: | United States |
The A-3149 (LS-750) and A-3171 (LS-800) were diesel-electric switching locomotives built between November 1949 and June 1951, by the Lima-Hamilton Corporation of Lima, Ohio, U.S.A.. The A-3149 is a 750hp switcher. It was later upgraded to 800hp by changing fuel rack settings. Both models used the same turbocharged Hamilton T69SA four-stroke, six cylinder inline diesel engine, a Westinghouse generator and 4 Westinghouse traction motors.
All six A-3149’s were sold to a single railroad, Cincinnati Union Terminal (CUT class DES-10w) with two (#24-25) being sold after the A-3171 had been introduced. The 23 A-3171’s were sold to just two railroads, the Chicago, Rock Island and Pacific bought 2, and Chicago River and Indiana (a subsidiary of the New York Central System, CR&I class DES-19a) bought 21.
Lima-Hamilton did not assign model numbers to their models but referred to them by specification numbers. Model designations such as LS-750 or LS-800 were a railfan invention. Lima-Hamilton assigned A-3149 as the specification number for the 750 hp model, and A-3171 as the specification number for the 800 hp model.
| Railroad | Qty | Road Numbers | Notes |
|---|---|---|---|
| Chicago, Rock Island and Pacific Railroad | |||
| Chicago River and Indiana Railroad (subsidiary of New York Central Railroad) | |||
The last extant A-3149, former Cincinnati Union Terminal 25, is operated by the Whitewater Valley Railroad