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ALCO S-6
| Power type |
Diesel-electric |
| Builder |
ALCO |
| Model |
S-6 |
| Build date |
May 1955 – December 1960 |
| Total production |
126 |
| AAR wheel arr. |
B-B |
| UIC classification |
Bo'Bo' |
| Gauge |
4 ft 8½ in (1,435 mm) |
| Length |
45 ft 5 in (13.84 m)[1] |
| Width |
10 ft (3.05 m) |
| Height |
14 ft 8 in (4.47 m) |
| Locomotive weight |
230,000 lb (104,000 kg) |
| Fuel capacity |
635 US gal (2,400 l/529 imp gal) |
| Lubricant capacity |
140 US gal (530 l/120 imp gal) |
| Coolant capacity |
110 US gal (420 l/92 imp gal) |
| Sandbox capacity |
26 cu ft (0.74 m³) |
| Prime mover |
ALCO 251A,B |
| Engine RPM range |
375 – 1000 rpm |
| Engine type |
Four-stroke diesel |
| Displacement |
668 cu in (10.95 l) per cylinder
4,008 cu in (65.68 l) total |
| Generator |
GE GT533 |
| Traction motors |
GE 731 (4 off) |
| Cylinders |
Straight 6 |
| Cylinder size |
9 × 10½ in (229 × 267 mm) |
| Top speed |
60 mph (97 km/h) |
| Power output |
900 hp (670 kW) |
| Locale |
United States, Mexico |
| Preserved |
Two [2] |
The Alco S-6 (spec. DL 430) was a diesel-electric locomotive of the switcher type constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 and December 1960. The S-6 was a development of the earlier S-5; instead of the 800 hp ALCO 251 engine on the previous locomotive, the S-6 used a 251A or 251B engine rated at 900 horsepower. The locomotive rode on two-axle AAR trucks, giving a B-B wheel arrangement. A cow-calf version was produced exclusively for Oliver Iron Mining Company, who bought two: this was the SB-8/SSB-9 (DL-441).
[edit] Original owners
[edit] References
