Milwaukee Road class F7

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<tr><td colspan="2" style="text-align: center; font-size: smaller;">Image:Milwaukee F7 100.jpg
Class F7 #100 at Portage, Wisconsin, August 9, 1939. <tr><th>Builder</th><td>ALCO</td></tr><tr><th>Build date</th><td>1937–38</td></tr><tr><th>Total production</th><td>6</td></tr><tr><th>Gauge</th><td>4 ft 8½ in (1435 mm)</td></tr><tr><th>Driver size</th><td>84 in (2.13 m)</td></tr><tr><th>Length</th><td>100 ft 0 in (30.48 m)</td></tr><tr><th>Weight on drivers</th><td>216,000 lb (98,000 kg)</td></tr><tr><th>Locomotive and tender combined weight</th><td>791,000 lb (359,000 kg)</td></tr><tr><th>Tender capacity</th><td>50,000 lb (22,500 kg) coal, 16,700 US gallons (63,200 L) water</td></tr><tr><th>Boiler pressure</th><td>300 lbf/in² (2.07 MPa)</td></tr><tr><th>Fire grate area</th><td>96.5 ft² (9.0 m²)</td></tr><tr><th>Heating surface: Total</th><td>4,166 ft² (387 m²)</td></tr><tr><th>Superheater area</th><td>1,695 ft² (157 m²)</td></tr><tr><th>Cylinders</th><td>2</td></tr><tr><th>Cylinder size</th><td>23.5×30 in (597×762 mm)</td></tr><tr><th style="color: black; background: #cc9966; text-align: center;">Career</th><td style="color: black; background: #cc9966; text-align: center;">Milwaukee Road</td></tr><tr><th>Number</th><td>#100–105</td></tr><tr><th>Disposition</th><td>Withdrawn 1951, scrapped</td></tr>

**Milwaukee Road class F7**
Power type	Steam

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.