648:. Information is conflicting on the number of injuries that resulted: Some report that two railroad employees were injured, while another report stated that as the locomotive passed by the Devon Avenue crossing an automobile driver was injured by flying debris. Whatever the case, no one was killed. The train stayed on the rails, and continued to over 10,560 feet from the station until coming to a complete stop. The cause of the incident was later found to have been caused by the failure of a connection link between the valve gear's combination lever and a Nathan mechanical lubricator. In fact, both of the locomotive's crossheads had been running dry on lubrication, but the right one was the first to fail. After this incident, #102 never ran again, as the cost was not considered worth repairs.
32:
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froze in its guide. It immediately overheated, broke, and dropped from the guide while the train was traveling at an estimated speed between 90 and over 100 mph. Air brake lines were severed, putting the engine into emergency. The engine was severely damaged, broken drive gear tore up ties and
611:
is officially accepted to be the world's fastest, with a run recorded at 125.88 mph (202.58 km/h) but authenticated at 126 mph in 1938. The
Mallard run was slightly downhill and the locomotive broke down at the end of the run.
599:
railroading expert, once recorded a run between
Chicago and Milwaukee where the locomotive reached 125 mph (201 km/h) and sustained an average 120 mph (190 km/h) for 4.5 miles (7.2 km). However, the
651:
The first one built, #100, was also the first withdrawn from service, on
November 10, 1949; and the last one built #105 was the final one in service and was withdrawn August 10, 1951, and scrapped shortly after.
615:
The
Milwaukee F7s are accepted as the fastest steam locomotives by a different measure—scheduled speed between stations. In 1939, shortly after they were introduced into passenger service, the
589:
The F7s are major contenders for the fastest steam locomotives ever built, as they ran at over 100 miles per hour (160 km/h) daily. One run in
January 1941 recorded by a reporter for
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On July 27, 1950, F7 #102 was on a run between
Chicago and Milwaukee on the "North Woods Hiawatha." 73 miles from Milwaukee, the right main
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magazine saw 110 miles per hour (180 km/h) achieved twice—in the midst of a heavy snowstorm. Baron Gérard
Vuillet, a
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811:- six similar 4-6-4 type locomotives with the same boiler pressure and driving wheel size, also used in Chicago by the
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schedule was modified such that the engines would need to run the 78.3 mi (126.0 km) between
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above the original single highlight to further enhance the safety of daily highspeed operation.
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roadbed, and debris (including the main rod) was found as far as 1400 feet west of
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in 58 minutes—a start-to-stop average of 81 mph (130 km/h).
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In the late 1940s, the
Milwaukee F7s were modified to equip an additional
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928:(136). The Railway and Locomotive Historical Society, Inc.: 28–129.
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type locomotives built for the
Milwaukee's Chicago competitor, the
960:. Vol. 3, no. 1. Kalmbach Publishing Co. pp. 65–73.
798:
546:
542:
189:
578:, the F7s allowed the road to haul heavier trains on the popular
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20,000 US gal (75,700 L; 16,700 imp gal)
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851:
Fashion in Steel: Streamlined Steam
Locomotives in North America
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Edson, William D. (Spring 1977). "Milwaukee Road Locomotives".
25:
433: in × 30 in (597 mm × 762 mm)
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317:
791,000 lb (359,000 kilograms; 359 metric tons) full
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415,000 lb (188,000 kilograms; 188 metric tons)
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72,250 lb (32,770 kilograms; 32.77 metric tons)
990:. Windsor, Berkshire, UK: Profile Publications Ltd.
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997:"Chicago Milwaukee St. Paul & Pacific: 4-6-4s"
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301:216,000 lb (98,000 kilograms; 98 metric tons)
335:50,000 lb (23,000 kilograms; 23 metric tons)
1116:Standard gauge locomotives of the United States
571:. Following on from the success of the road's
102:A class F7 being moved out of the Alco factory
16:Class of 6 streamlined 4-6-4 steam locomotives
8:
933:Hollingsworth, Brian; Cook, Arthur (2001).
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483:
442:
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258:38 and 44 in (965 and 1,118 mm)
76:Learn how and when to remove this message
956:King, Ed; Scribbins, Jim (Spring 2002).
39:This article includes a list of general
825:
1106:Steam locomotives of the United States
1101:Railway locomotives introduced in 1938
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963:
941:. Osceola, Wisconsin: MBI Publishing.
538:comprised six (#100–#105) high-speed,
87:
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7:
400:1,695 sq ft (157.5 m)
375:4,166 sq ft (387.0 m)
279:100 ft 0 in (30.48 m)
271:89 ft 10 in (27.38 m)
795:Chicago and North Western class E-4
359:96.5 sq ft (8.97 m)
45:it lacks sufficient corresponding
14:
803:Chicago and North Western Railway
1054:
464:50,294 lbf (223.72 kN)
96:
30:
988:Loco Profile 26 – The Hiawathas
848:Young, Jan (30 November 2017).
367:300 lbf/in (2.07 MPa)
1:
1091:Streamlined steam locomotives
561:–38 to haul the Milwaukee's
513:November 1949 to August 1951
454:120 mph (193 km/h)
1025:Kalmbach Publishing Company
555:American Locomotive Company
129:American Locomotive Company
1132:
1076:Milwaukee Road locomotives
906:"Fastest Steam Locomotive"
248:84 in (2,134 mm)
18:
482:
441:
397: • Heating area
164:
107:
95:
1023:. Milwaukee, Wisconsin:
937:The Great Book of Trains
237:36 in (914 mm)
146:August to September 1938
1061:Milwaukee Road class F7
356: • Grate area
91:Milwaukee Road class F7
60:more precise citations.
1096:Passenger locomotives
1063:at Wikimedia Commons
656:Table of locomotives
1111:Scrapped locomotives
986:Reed, Brian (1972).
809:AT&SF class 3460
797:- nine very similar
618:Twin Cities Hiawatha
19:For other uses, see
889:, pp. 226–227.
657:
606:LNER Class A4 4468
446:Performance figures
21:F7 (disambiguation)
1020:The Hiawatha Story
655:
269:Loco & tender:
1086:4-6-4 locomotives
1059:Media related to
1001:Don's Rail Photos
973:Missing or empty
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646:Edgebrook Station
627:Sparta, Wisconsin
551:steam locomotives
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389: • Type
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1081:ALCO locomotives
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926:Railroad History
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908:. Archived from
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112:Type and origin
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225:standard gauge
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174:Configuration:
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169:Specifications
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152:Total produced
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966:cite magazine
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948:0-7603-1193-5
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912:on 2006-04-20
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904:Benn, Bryan.
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877:, p. 51.
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691:November 1949
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553:built by the
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536:'s class "F7"
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451:Maximum speed
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416:Cylinder size
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332:Fuel capacity
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254:Trailing dia.
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220:1,435 mm
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183: •
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135:Serial number
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1004:. Retrieved
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914:. Retrieved
910:the original
882:
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854:. Lulu.com.
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521:All scrapped
410:Two, outside
380:Superheater:
314:Total weight
268:
233:Leading dia.
72:
63:
44:
995:Ross, Don.
781:August 1951
740:August 1938
727:August 1950
722:August 1938
704:August 1938
686:August 1938
604:locomotive
584:Twin Cities
540:streamlined
518:Disposition
306:Loco weight
138:69064–69069
66:August 2013
58:introducing
1070:Categories
1006:2011-11-07
916:2010-02-05
897:References
875:Edson 1977
709:April 1951
668:serial No.
634:Mars Light
557:(ALCO) in
340:Water cap.
143:Build date
117:Power type
41:references
763:June 1951
745:June 1951
661:Milwaukee
641:crosshead
573:class "A"
492:Operators
406:Cylinders
322:Fuel type
285:Axle load
264:Wheelbase
1033:70107874
1017:(1970).
789:See also
674:Retired
663:Road No.
586:routes.
567:express
564:Hiawatha
384:
351:
348:Firebox:
216: in
178:
623:Portage
608:Mallard
602:British
580:Chicago
510:Retired
505:100–105
502:Numbers
428:⁄
211:⁄
125:Builder
54:improve
1039:
1031:
945:
858:
597:French
592:Trains
576:4-4-2s
547:Baltic
487:Career
392:Type E
276:Length
243:Driver
43:, but
1041:91468
820:Notes
799:4-6-4
772:69069
754:69068
736:69067
718:69066
700:69065
682:69064
671:Built
543:4-6-4
197:Gauge
190:4-6-4
185:Whyte
120:Steam
1037:OCLC
1029:LCCN
979:help
943:ISBN
856:ISBN
666:Alco
625:and
559:1937
531:The
474:4.29
326:Coal
245:dia.
769:105
751:104
733:103
715:102
697:101
679:100
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968:}}
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
