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Baris 15: * powertype = Steam * caption = Big Boy #4014 on display in Pomona, CA * builder = [[American Locomotive Company]] * builddate = 1941 (20), 1944 (5) * totalproduction = 25 * whytetype = [[4-8-8-4]] * uicclass = (2'D)D2' * gauge = {{RailGauge\|ussg}} * leadingsize = * driversize = {{convert\|68 \|in m3\|m\|3\|abbr=on}} diameter * trailingsize = * length = {{convert\|132 \|ft\|9+1/4\|in\|m\|2\|abbr=on} * weightondrivers = {{convert\|540000 ~~lbt~~\|lb\|t\|1\|abbr=on}} * locotenderweight= {{convert\|1208750 ~~lbt~~\|lb\|t\|1\|abbr=on}} * fueltype = Coal * fuelcap = {{28 short ins (25,4 lt)}} * watercap = {{25000 USgal (85.000 lt)}} * boilerpressure = {{convert\|300 \|lb/in2 ~~(2.1~~ \|MPa)\|abbr=on}} * cylindercount = Four * cylindersize = 23¾ in bore × 32 in stroke (603 mm × 813 mm) * topspeed = {{80 mph (120 km/h)}} * tractiveeffort = {{135375 lbf (802 kN)}} * railroad = [[Union Pacific Railroad\|Union Pacific]] * railroadclass = ''4000–4019:'' 4884-1<br>''4020–4024:'' 4884-2 * lastrundate = July 21, 1959

Union Pacific Big Boy: Perbedaan antara revisi