The ALCO DL420 was the prototype ALCO S-5 diesel-electric switcher locomotive.
Quick facts Type and origin, Power type ...
| ALCO DL420 (S-5 prototype) |
|---|
|
| Specifications |
|---|
Configuration:
| |
|---|
| • AAR | B-B |
|---|
| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
|---|
|
| Performance figures |
|---|
| Power output | 800 hp (600 kW) |
|---|
|
Close
It was built in August, 1951 using an early six-cylinder 251 engine rated at 800 horsepower (600 kW) and RS-3 subassemblies in its construction. It rode on two-axle trucks with a B-B wheel arrangement, and was the first ALCO switcher with a front radiator opening. This one-of-a-kind unit spent its time at the Niskayuna test facility, then at Schenectady as a shop switcher (#6). It was scrapped in the late 1950s.