The Baldwin DR-4-4-15 was a 1,500-horsepower (1,100-1,118 kW) cab unit-type diesel locomotive built for freight service by the Baldwin Locomotive Works between November 1947 and June 1950. It was produced in two different body types, nicknamed the "Babyface" and "Sharknose" styles by railfans, though Baldwin used the same model number for both. 22 "Babyface" cab-equipped A units were built, along with 11 cabless booster B units; 36 "Sharknose" A units and 36 B units were constructed, making a total for all models of 105 locomotives built. Sadly, Not One of the 105 Baldwin DR-4-4-1500s were preserved and they were all scrapped.
Original Buyers[]
| Railroad | Quantity
A units |
Quantity
B units |
Road numbers A units | Road numbers B units | Notes |
|---|---|---|---|---|---|
| Central Railroad of New Jersey | 10 | 5 | 70–79 | K, L, M, R, S | |
| Missouri Pacific Railroad | 8 | 4 | 201–208 | 201B–204B | |
| New York Central Railroad | 4 | 2 | 3400–3403 | 3700–3701 | Renumbered 3800–3803 (A) |
| Total | 22 | 11 |
| Railroad | Quantity A units | Quantity B units | Road numbers A units | Road numbers B units | Notes |
|---|---|---|---|---|---|
| Baldwin Locomotive Works (demonstrators) | 2 | 2 | 6001A, 6001A1 | 6001B, 6001B1 | to Elgin, Joliet and Eastern Railroad #700A/#701A (A) #700B/#701B (B), then to Baltimore and Ohio Railroad 847, 849 (A) 847X, 849X (B), later 4200–4201 (A), 5200–5201 (B) |
| Pennsylvania Railroad | 34 | 34 | 9568A–9593A, 9700A–9707A | 9568B–9593B, 9700B–9707B | 9700A,B–9707A,B were equipped with Baldwin RF-16 bodies, and are therefore referred to by some as "RF-15s." 9583B repowered with ALCo V12 251B in December 1959, renumbered 9632B. converted to mobile power unit by Sullian Trail Colliery in 1991, scrapped in 1992. |
| Total | 36 | 36 |