| |
| |
Union Pacific EMD F Units |
 | | The Union Pacific Railroad was an early convert to the benefits of dieselization, and as such, was the owner of the largest fleet of EMD F3A cab units and F3B booster unit locomotives in the nation, with 89 cab units and 90 booster units. |
 | | The remaining three cab units, 904, 905, and 909, were rebuilt to F7As by EMD at La Grange in late 1954 and early 1955, becoming the 1455, 1456, and 1460. |
 | | All of the 84 units in the 500-class F9s (41 F9As and 43 F9Bs) were completely remanufactured by EMD at La Grange, from the same number of F3s that remained in both the 1500 and the 1550 classes. |
| www.utahrails.net /articles/up-f-units.php (4996 words) |
|