Milwaukee Road class F7
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 Class F7 #100 at Portage, Wisconsin, August 9, 1939. |
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| Power type | Steam |
|---|---|
| Builder | ALCO |
| Build date | 1937–38 |
| Total production | 6 |
| Gauge | 4 ft 8½ in (1435 mm) |
| Driver size | 84 in (2.13 m) |
| Length | 100 ft 0 in (30.48 m) |
| Weight on drivers | 216,000 lb (98,000 kg) |
| Locomotive and tender combined weight | 791,000 lb (359,000 kg) |
| Tender capacity | 50,000 lb (22,500 kg) coal, 16,700 US gallons (63,200 L) water |
| Boiler pressure | 300 lbf/in² (2.07 MPa) |
| Fire grate area | 96.5 ft² (9.0 m²) |
| Heating surface: Total | 4,166 ft² (387 m²) |
| Superheater area | 1,695 ft² (157 m²) |
| Cylinders | 2 |
| Cylinder size | 23.5×30 in (597×762 mm) |
| Career | Milwaukee Road |
| Number | #100–105 |
| Disposition | Withdrawn 1951, scrapped |
The Milwaukee Road's class F7 comprised six (#100–#105) high-speed, streamlined 4-6-4 "Baltic" or "Hudson" type steam locomotives built by ALCO in 1937–38 to haul the Milwaukee's Hiawatha express passenger trains. Following on from the success of the road's class A 4-4-2s, the F7s allowed the road to haul longer trains on the popular Chicago–Twin Cities Hiawatha routes.
[edit] See also
- CNW Class E-4 - nine very similar 4-6-4 locomotives built for the Milwaukee's Chicago competitor, the Chicago and North Western Railway.
[edit] References
- Benn, Bryan. Fastest Steam Locomotive. Retrieved on 2006-01-09.
- Ross, Don. Chicago Milwaukee St. Paul & Pacific: Class F7 4-6-4 Hiawatha Atlantics. Don's Rail Photos. Retrieved on 2006-01-09.
- Hollingsworth, Brian and Cook, Arthur (2001). The Great Book of Trains. Osceola, Wisconsin: MBI Publishing. ISBN 0-7603-1193-5.
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