| General Electric U28B | |
| Powertype: | Diesel-electric |
| Builder: | GE Transportation Systems |
| Buildmodel: | U28B |
| Aarwheels: | B-B |
| Primemover: | GE FDL-16 |
| Tractionmotors: | GE-752 |
| Rpmrange: | 650–1050 rpm |
| Maxspeed: | 70mph |
| Poweroutput: | 2800hp |
| Tractiveeffort: | 70000lbf (starting) 64000lbf (continuous) |
| Builddate: | January 1966–January 1967 |
| Totalproduction: | 148 |
The GE U28B diesel-electric locomotive model replaced the U25B in early 1966, featuring a slightly uprated prime mover (only 300hp more power than the U25B). Early units had the same car body styling as the U25B, while later units had design features (e.g., shortened nose) more in common with later models. After only a year of production, this model was superseded by the U30B.
Trains Magazine editor David P. Morgan wrote about General Electric's decision to go with 2800 horsepower in its 1966 locomotive production. The short article Morgan wrote in the November 1965 issue had line drawings of the proposed short nose U28B.
| Railroad | Quantity | Numbers | Notes |
|---|---|---|---|
| Chicago, Burlington and Quincy Railroad | 20 | 106-115, 140-149 | to Burlington Northern 5450-5459, 5470-5479, all late-style carbody |
| Chicago, Milwaukee, St. Paul and Pacific Railroad | 17 | 130-135, 137-140, 380, 393-398 | 393-398 U25B-style carbody, all others late-style |
| Chicago, Rock Island and Pacific Railroad | 42 | 240-281 | 240-254 U25B-style carbody, 255-281 late-style |
| 6 | 2524-2529 | to Burlington Northern 5460-5465, late-style carbody | |
| Louisville and Nashville Railroad | 5 | 2500-2504 | late-style carbody, all rebuilt to U30B |
| New York Central Railroad | 2 | 2822-2823 | to Penn Central, Conrail 2822-2823, late-style carbody |
| Norfolk and Western Railroad | 30 | 1900-1929 | high-nose, late-style carbody |
| Pittsburgh and Lake Erie Railroad | 22 | 2800-2821 | U25B-style carbody |
| Southern Pacific Railroad Company | 4 | 7025-7028 | Served as GE demonstrators from 2/66 to delivery in 8/66, U25B-style carbody |
Only two U28B's are in preservation, and one of them has been rebuilt to U30B specs.