25:
204:. The locomotive was too large to work elsewhere in the system. Pennsylvania Railroad executive hoped that the locomotive could haul 1,000 tons at 100 miles per hour, which were exceeded in a December 1940 test run which reached 101 mph with 1,350 tons being pulled. While it was capable of very high speeds, no firm documentary evidence has so far surfaced to confirm the record 133 mph run cited in the December 1941 issue of Popular Mechanics magazine which, if true, would make this locomotive the fastest steam locomotive ever built.
90:
1093:
54:
1088:
267:
225:
76:
47:
972:
967:
979:
185:
197:
1114:
600:
192:, the longest and heaviest rigid frame reciprocating steam locomotive ever built and is referred to as the
960:
950:
235:
610:
245:
260:
37:
955:
593:
41:
33:
1119:
989:
921:
792:
681:
157:
142:
58:
1083:
1069:
181:
148:
929:
253:
222:"Riding the Gargantua of the Rails" by Roderick M. Grant, Popular Mechanics (December 1941)
166:
8:
226:
http://www.steamlocomotive.com/locobase.php?country=USA&wheel=Duplex&railroad=prr
1064:
993:
925:
694:
685:
395:
230:
219:"High-Capacity Locomotive for Fast Service" Railway Age Vol. 106, No. 25 (24 June 1939)
134:
1059:
1046:
796:
615:
189:
112:
689:
101:
1054:
201:
276:
124:
105:
1108:
200:, and was afterward placed in limited service between Chicago, Illinois, and
120:
116:
782:
777:
772:
767:
762:
755:
750:
745:
740:
735:
730:
725:
718:
713:
708:
703:
240:
93:
The
Pennsylvania Railroad's lone S1 was the only 6-4-4-6 ever constructed.
275:
109:
236:
http://www.dieselpunks.org/profiles/blogs/sunday-streamline-14-the-big
943:
938:
911:
639:
350:
904:
899:
894:
889:
884:
879:
874:
867:
862:
857:
852:
847:
842:
837:
832:
827:
820:
815:
810:
805:
671:
666:
656:
651:
644:
634:
629:
624:
588:
213:
Loco
Profile 24: Pennsylvania Duplexii by Brian Reed (June 1972)
1031:
1002:
583:
578:
573:
566:
561:
556:
551:
546:
541:
536:
479:
447:
427:
385:
380:
365:
360:
325:
310:
1036:
1024:
1019:
1014:
1007:
529:
524:
519:
514:
509:
504:
499:
494:
489:
484:
474:
469:
462:
457:
452:
442:
437:
432:
422:
417:
412:
405:
400:
390:
375:
370:
355:
345:
337:
330:
320:
315:
305:
300:
295:
290:
89:
277:
Steam locomotive wheel arrangements (Whyte notation)
231:
http://www.crestlineprr.com/duplexexperimentals.html
196:. This experimental locomotive was exhibited at the
1106:
46:but its sources remain unclear because it lacks
261:
216:Pennsy Power (I) by Alvin F. Staufer (1962)
268:
254:
141:(also known as German classification and
77:Learn how and when to remove this message
88:
241:http://streamlinermemories.info/?p=5258
1107:
130:Other equivalent classifications are:
249:
18:
16:Duplex locomotive wheel arrangement
13:
14:
1131:
23:
1:
207:
173:up to the early 1920s, later
7:
180:Only one was produced, the
10:
1136:
198:1939 New York World's Fair
1078:
1045:
988:
920:
791:
680:
609:
283:
32:This article includes a
990:Articulated locomotives
980:2-4-4-2+2-8-8-2+2-4-4-2
922:Articulated locomotives
793:Articulated locomotives
682:Articulated locomotives
61:more precise citations.
1082:Other notation forms:
158:Turkish classification
143:Italian classification
94:
956:0-6-2+2-4-2-4-2+2-6-0
182:Pennsylvania Railroad
149:French classification
92:
167:Swiss classification
1115:6-4-4-6 locomotives
284:Single engine types
119:, two sets of four
1047:Geared locomotives
973:2-10-10-10-10-10-2
188:of 1939. It was a
135:UIC classification
115:, is one with six
113:wheel arrangements
95:
34:list of references
1102:
1101:
194:Pennsylvania Type
190:duplex locomotive
87:
86:
79:
1127:
270:
263:
256:
247:
246:
102:steam locomotive
82:
75:
71:
68:
62:
57:this article by
48:inline citations
27:
26:
19:
1135:
1134:
1130:
1129:
1128:
1126:
1125:
1124:
1105:
1104:
1103:
1098:
1074:
1041:
992:
984:
961:2-6-6-2+2-6-6-2
924:
916:
795:
787:
692:
684:
676:
614:
605:
279:
274:
210:
202:Crestline, Ohio
125:trailing wheels
108:for describing
83:
72:
66:
63:
52:
38:related reading
28:
24:
17:
12:
11:
5:
1133:
1123:
1122:
1120:Whyte notation
1117:
1100:
1099:
1097:
1096:
1091:
1086:
1079:
1076:
1075:
1073:
1072:
1067:
1062:
1057:
1051:
1049:
1043:
1042:
1040:
1039:
1034:
1028:
1027:
1022:
1017:
1011:
1010:
1005:
999:
997:
986:
985:
983:
982:
976:
975:
970:
964:
963:
958:
953:
947:
946:
941:
935:
933:
918:
917:
915:
914:
908:
907:
902:
897:
892:
887:
882:
877:
871:
870:
865:
860:
855:
850:
845:
840:
835:
830:
824:
823:
818:
813:
808:
802:
800:
789:
788:
786:
785:
780:
775:
770:
765:
759:
758:
753:
748:
743:
738:
733:
728:
722:
721:
716:
711:
706:
700:
698:
678:
677:
675:
674:
669:
664:
659:
654:
648:
647:
642:
637:
632:
627:
621:
619:
607:
606:
604:
603:
597:
596:
591:
586:
581:
576:
570:
569:
564:
559:
554:
549:
544:
539:
533:
532:
527:
522:
517:
512:
507:
502:
497:
492:
487:
482:
477:
472:
466:
465:
460:
455:
450:
445:
440:
435:
430:
425:
420:
415:
409:
408:
403:
398:
393:
388:
383:
378:
373:
368:
363:
358:
353:
348:
342:
341:
334:
333:
328:
323:
318:
313:
308:
303:
298:
293:
287:
285:
281:
280:
273:
272:
265:
258:
250:
244:
243:
238:
233:
228:
223:
220:
217:
214:
209:
206:
184:'s sole class
178:
177:
164:
155:
146:
121:driving wheels
117:leading wheels
106:Whyte notation
85:
84:
42:external links
31:
29:
22:
15:
9:
6:
4:
3:
2:
1132:
1121:
1118:
1116:
1113:
1112:
1110:
1095:
1092:
1090:
1087:
1085:
1081:
1080:
1077:
1071:
1068:
1066:
1063:
1061:
1058:
1056:
1053:
1052:
1050:
1048:
1044:
1038:
1035:
1033:
1030:
1029:
1026:
1023:
1021:
1018:
1016:
1013:
1012:
1009:
1006:
1004:
1001:
1000:
998:
995:
991:
987:
981:
978:
977:
974:
971:
969:
968:2-8-8-8-8-8-2
966:
965:
962:
959:
957:
954:
952:
949:
948:
945:
942:
940:
937:
936:
934:
931:
927:
923:
919:
913:
910:
909:
906:
903:
901:
898:
896:
893:
891:
888:
886:
883:
881:
878:
876:
873:
872:
869:
866:
864:
861:
859:
856:
854:
851:
849:
846:
844:
841:
839:
836:
834:
831:
829:
826:
825:
822:
819:
817:
814:
812:
809:
807:
804:
803:
801:
798:
794:
790:
784:
781:
779:
776:
774:
771:
769:
766:
764:
761:
760:
757:
754:
752:
749:
747:
744:
742:
739:
737:
734:
732:
729:
727:
724:
723:
720:
717:
715:
712:
710:
707:
705:
702:
701:
699:
696:
691:
687:
683:
679:
673:
670:
668:
665:
663:
660:
658:
655:
653:
650:
649:
646:
643:
641:
638:
636:
633:
631:
628:
626:
623:
622:
620:
617:
612:
611:Divided drive
608:
602:
599:
598:
595:
592:
590:
587:
585:
582:
580:
577:
575:
572:
571:
568:
565:
563:
560:
558:
555:
553:
550:
548:
545:
543:
540:
538:
535:
534:
531:
528:
526:
523:
521:
518:
516:
513:
511:
508:
506:
503:
501:
498:
496:
493:
491:
488:
486:
483:
481:
478:
476:
473:
471:
468:
467:
464:
461:
459:
456:
454:
451:
449:
446:
444:
441:
439:
436:
434:
431:
429:
426:
424:
421:
419:
416:
414:
411:
410:
407:
404:
402:
399:
397:
394:
392:
389:
387:
384:
382:
379:
377:
374:
372:
369:
367:
364:
362:
359:
357:
354:
352:
349:
347:
344:
343:
339:
336:
335:
332:
329:
327:
324:
322:
319:
317:
314:
312:
309:
307:
304:
302:
299:
297:
294:
292:
289:
288:
286:
282:
278:
271:
266:
264:
259:
257:
252:
251:
248:
242:
239:
237:
234:
232:
229:
227:
224:
221:
218:
215:
212:
211:
205:
203:
199:
195:
191:
187:
183:
176:
172:
168:
165:
163:
159:
156:
154:
150:
147:
144:
140:
136:
133:
132:
131:
128:
126:
122:
118:
114:
111:
107:
103:
100:
91:
81:
78:
70:
67:November 2022
60:
56:
50:
49:
43:
39:
35:
30:
21:
20:
661:
618:engine types
193:
179:
174:
170:
161:
152:
138:
129:
98:
96:
73:
64:
53:Please help
45:
951:2-8-8-8-8-2
783:4-8-4+4-8-4
778:4-8-2+2-8-4
773:4-8-0+0-8-4
768:2-8-2+2-8-2
763:2-8-0+0-8-2
756:4-6-4+4-6-4
751:4-6-2+2-6-4
746:4-6-0+0-6-4
741:2-6-2+2-6-2
736:2-6-0+0-6-2
731:0-6-2+2-6-0
726:0-6-0+0-6-0
719:4-4-2+2-4-4
714:2-4-2+2-4-2
709:2-4-0+0-4-2
704:0-4-0+0-4-0
59:introducing
1109:Categories
1070:Willamette
928:and other
340:(monorail)
208:References
123:, and six
110:locomotive
944:2-8-8-8-4
939:2-8-8-8-2
930:Multiplex
912:2-10-10-2
104:, in the
640:2-2-4-0T
1065:Heisler
1025:0-6-4-0
994:Engerth
926:Triplex
905:4-8-8-4
900:4-8-8-2
895:2-8-8-4
890:2-8-8-2
885:2-8-8-0
880:0-8-8-0
875:0-8-6-0
868:4-6-6-4
863:4-6-6-2
858:4-4-6-2
853:2-6-8-0
848:2-6-6-6
843:2-6-6-4
838:2-6-6-2
833:2-6-6-0
828:0-6-6-0
821:2-4-4-2
816:2-4-4-0
811:0-4-4-2
806:0-4-4-0
695:Garratt
686:Fairlie
672:4-6-4-4
667:4-4-6-4
662:6-4-4-6
657:4-4-4-4
652:2-4-6-2
645:4-2-2-0
635:2-2-2-2
630:2-2-2-0
625:0-2-2-0
351:0-4-0+4
171:2/5+2/5
99:6-4-4-6
55:improve
1060:Climax
797:Mallet
616:Duplex
601:4-14-4
594:4-12-2
589:2-12-4
584:2-12-2
579:2-12-0
574:0-12-0
567:4-10-2
562:4-10-0
557:2-10-4
552:2-10-2
547:2-10-0
542:0-10-2
537:0-10-0
480:0-8-4T
448:2-6-6T
428:0-6-6T
386:2-4-6T
381:2-4-4T
366:0-4-6T
361:0-4-4T
326:4-2-4T
311:2-2-4T
1089:Swiss
1037:0-8-6
1032:0-8-4
1020:0-6-4
1015:2-6-4
1008:0-4-6
1003:0-4-4
996:types
932:types
799:types
697:types
690:Meyer
530:6-8-6
525:4-8-6
520:4-8-4
515:4-8-2
510:4-8-0
505:2-8-6
500:2-8-4
495:2-8-2
490:2-8-0
485:0-8-6
475:0-8-2
470:0-8-0
463:4-6-4
458:4-6-2
453:4-6-0
443:2-6-4
438:2-6-2
433:2-6-0
423:0-6-4
418:0-6-2
413:0-6-0
406:4-4-6
401:4-4-4
396:4-4-2
391:4-4-0
376:2-4-2
371:2-4-0
356:0-4-2
346:0-4-0
338:0-3-0
331:6-2-0
321:4-2-2
316:4-2-0
306:2-2-2
301:2-2-0
296:0-2-4
291:0-2-2
40:, or
1055:Shay
693:and
613:and
175:4/10
162:2525
153:3223
139:3BB3
1094:UIC
1084:AAR
1111::
688:,
186:S1
169::
160::
151::
137::
127:.
97:A
44:,
36:,
269:e
262:t
255:v
145:)
80:)
74:(
69:)
65:(
51:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
