1
Union Pacific 4-8-8-4 "Big Boy" Steam Engine Footage
Union Pacific 4-8-8-4 "Big Boy" Steam Engine Footage
DATE: 2011/01/16::
2
Union Pacific Big Boy 4005 (4-8-8-4)
Union Pacific Big Boy 4005 (4-8-8-4)
DATE: 2011/09/17::
3
Western Steam Power "Big Boy
Western Steam Power "Big Boy's in Action"
DATE: 2011/01/12::
4
Lionel Vision Line Union Pacific 4-8-8-4 Big Boy #4014
Lionel Vision Line Union Pacific 4-8-8-4 Big Boy #4014
DATE: 2015/01/13::
5
HO Union Pacific 4-8-8-4 Big Boy 4014 Customized (Excursion Version)
HO Union Pacific 4-8-8-4 Big Boy 4014 Customized (Excursion Version)
DATE: 2014/05/23::
6
Running of Lionel
Running of Lionel's J.L.C Union Pacific 4-8-8-4 Big Boy #4024 with Legacy
DATE: 2010/09/12::
7
2013 Athearn N Scale Big Boy 4-8-8-4 Review
2013 Athearn N Scale Big Boy 4-8-8-4 Review
DATE: 2013/04/19::
8
MTH Union Pacific Big Boy 4-8-8-4 #4016
MTH Union Pacific Big Boy 4-8-8-4 #4016
DATE: 2013/09/20::
9
4-8-8-4 UP Big Boy with Circus Train - Monroe Train Show
4-8-8-4 UP Big Boy with Circus Train - Monroe Train Show
DATE: 2013/02/09::
10
HO Scale 4-8-8-4 "Big Boy"
HO Scale 4-8-8-4 "Big Boy"
DATE: 2008/07/31::
11
HO Scale Union Pacific 4-8-8-4 Big Boy
HO Scale Union Pacific 4-8-8-4 Big Boy
DATE: 2009/05/19::
12
Train Simulator 2015 - Majestic Falls, UP BigBoy 4-8-8-4
Train Simulator 2015 - Majestic Falls, UP BigBoy 4-8-8-4
DATE: 2015/03/27::
13
UP 4014 Big Boy Rolling at Pomona, CA
UP 4014 Big Boy Rolling at Pomona, CA
DATE: 2013/11/14::
14
Adrian
Adrian's Union Pacific Gas Turbine and 4-8-8-4 Big Boy
DATE: 2010/01/31::
15
BLI Broadway Limited Union Pacific Big Boy 4-8-8-4
BLI Broadway Limited Union Pacific Big Boy 4-8-8-4
DATE: 2011/01/10::
16
ACCUCRAFT  UP 4-8-8-4 BIG BOY, LIVE STEAM
ACCUCRAFT UP 4-8-8-4 BIG BOY, LIVE STEAM
DATE: 2012/07/31::
17
ATHEARN GENESIS HO BIG BOY 4-8-8-4 SMOKING
ATHEARN GENESIS HO BIG BOY 4-8-8-4 SMOKING
DATE: 2010/03/26::
18
MTH HO 4 8 8 4 BIG BOY UP4005 ♪DCS SOUND♪
MTH HO 4 8 8 4 BIG BOY UP4005 ♪DCS SOUND♪
DATE: 2013/10/20::
19
Big Boy 4-8-8-4 N-scale
Big Boy 4-8-8-4 N-scale
DATE: 2008/04/27::
20
O Gauge Union Pacific Big Boy 4-8-8-4 Joshua Lionel Cowen JLC vs differences Lionmaster
O Gauge Union Pacific Big Boy 4-8-8-4 Joshua Lionel Cowen JLC vs differences Lionmaster
DATE: 2013/01/12::
21
Union Pacific Big Boy 4-8-8-4, Athearn N scale
Union Pacific Big Boy 4-8-8-4, Athearn N scale
DATE: 2012/04/24::
22
TopHobbyTrains Bachmann N Scale Sound EM1 2-8-8-4 Steam Locomotive Soundtraxx Tsunami Micro
TopHobbyTrains Bachmann N Scale Sound EM1 2-8-8-4 Steam Locomotive Soundtraxx Tsunami Micro
DATE: 2013/09/25::
23
Rail King 4-8-8-4  Imperial Big Boy.   Proto-Sound 3
Rail King 4-8-8-4 Imperial Big Boy. Proto-Sound 3
DATE: 2013/05/09::
24
BLI Blue Line Custom 4-8-8-4 Big Boy
BLI Blue Line Custom 4-8-8-4 Big Boy
DATE: 2010/01/15::
25
Lionel 6-28029 Union Pacific BIG BOY 4-8-8-4 TMCC
Lionel 6-28029 Union Pacific BIG BOY 4-8-8-4 TMCC
DATE: 2010/12/31::
26
lego 4-8-8-4 big boy 2
lego 4-8-8-4 big boy 2
DATE: 2011/12/09::
27
Precision Craft Models 4-8-8-4 Union Pacific Big Boy#4002 Steam Locomotive HO Scale
Precision Craft Models 4-8-8-4 Union Pacific Big Boy#4002 Steam Locomotive HO Scale
DATE: 2012/11/29::
28
HO UP 4-8-8-4 Big Boy  Broadway Limited
HO UP 4-8-8-4 Big Boy Broadway Limited
DATE: 2012/10/06::
29
Chesapeake & Ohio Lima 614 (4-8-4) Steam Locomotive
Chesapeake & Ohio Lima 614 (4-8-4) Steam Locomotive
DATE: 2010/01/10::
30
LEGO TRAIN BIG BOY 4-8-8-4 INSTRUCTIONS
LEGO TRAIN BIG BOY 4-8-8-4 INSTRUCTIONS
DATE: 2013/08/24::
31
Lego big boy 4-8-8-4  2013
Lego big boy 4-8-8-4 2013
DATE: 2013/10/16::
32
Athearn N Scale Big Boy 4-8-8-4
Athearn N Scale Big Boy 4-8-8-4
DATE: 2013/04/24::
33
Rivarossi Bigboy 4-8-8-4 by www.trains4u.in India Mumbai
Rivarossi Bigboy 4-8-8-4 by www.trains4u.in India Mumbai
DATE: 2014/09/17::
34
ATHEARN  GENESIS BIG BOY 4-8-8-4
ATHEARN GENESIS BIG BOY 4-8-8-4
DATE: 2011/03/14::
35
Review of Lionel
Review of Lionel's J.L.C Union Pacific 4-8-8-4 Big Boy #4024 with Legacy
DATE: 2010/09/12::
36
MTH Premier UP Big Boys (4-8-8-4) O-Gauge Steam Locomotives
MTH Premier UP Big Boys (4-8-8-4) O-Gauge Steam Locomotives
DATE: 2007/03/16::
37
Athearn Genesis "Big Boy" 4-8-8-4
Athearn Genesis "Big Boy" 4-8-8-4
DATE: 2010/05/14::
38
K-Line Big Boy 4-8-8-4
K-Line Big Boy 4-8-8-4
DATE: 2011/12/31::
39
lego 4-8-8-4 big boy 1
lego 4-8-8-4 big boy 1
DATE: 2011/12/09::
40
OFFICIAL Paragon2 ATSF 4-8-4, HO Promo Video by Broadway Limited Imports, LLC
OFFICIAL Paragon2 ATSF 4-8-4, HO Promo Video by Broadway Limited Imports, LLC
DATE: 2013/08/29::
41
Union Pacific 4-8-8-4 Big Boy
Union Pacific 4-8-8-4 Big Boy
DATE: 2013/08/25::
42
OFFICIAL Paragon2 NYC Niagara 4-8-4 and Dreyfuss Hudson Promo Video by Broadway Limited Imports, LLC
OFFICIAL Paragon2 NYC Niagara 4-8-4 and Dreyfuss Hudson Promo Video by Broadway Limited Imports, LLC
DATE: 2013/09/16::
43
MTH Premier SP GS-4 Daylight (4-8-4) O-Gauge Steam Locomotive
MTH Premier SP GS-4 Daylight (4-8-4) O-Gauge Steam Locomotive
DATE: 2007/03/16::
44
UNION  PACIFIC  BIGBOY 4-8-8-4 (#4014)  ATHEARN  N-SCALE 走行動画
UNION PACIFIC BIGBOY 4-8-8-4 (#4014) ATHEARN N-SCALE 走行動画
DATE: 2013/07/14::
45
Athearn 4-8-8-4 BigBoy UP
Athearn 4-8-8-4 BigBoy UP
DATE: 2008/03/03::
46
4-8-8-4 Big Boy 4012
4-8-8-4 Big Boy 4012
DATE: 2015/01/24::
47
UP Big Boy 4-8-8-4 on the WE+E
UP Big Boy 4-8-8-4 on the WE+E
DATE: 2010/01/30::
48
HO Scale Athearn Genesis 4-8-8-4 Union Pacific Big Boy
HO Scale Athearn Genesis 4-8-8-4 Union Pacific Big Boy
DATE: 2012/06/15::
49
Broad Way Limited BLI Big Boy Union Pacific 4-8-8-4 Part 2
Broad Way Limited BLI Big Boy Union Pacific 4-8-8-4 Part 2
DATE: 2012/06/03::
50
MTH 4-8-8-4 Railking Challenger
MTH 4-8-8-4 Railking Challenger
DATE: 2015/02/28::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
Jump to: navigation, search
A Big Boy locomotive. This example is Union Pacific 4023.

In the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-8-8-4 is a locomotive with a four-wheel leading truck, two sets of eight driving wheels, and a four-wheel trailing truck. 4-8-8-4s are commonly known as "Big Boys".

Other equivalent classifications are:
UIC classification: 2DD2 (also known as German classification and Italian classification)
French classification: 240+042
Turkish classification: 46+46
Swiss classification: 4/6+4/6

The equivalent UIC classification is refined to (2′D)D2′ for Mallet locomotives.

4-8-8-4 Big Boys were only produced for the Union Pacific Railroad. Twenty-five such engines were built between 1941 and 1944, numbered 4000 to 4024. Eight of these survive, all on static public display at various sites in the USA. Union Pacific has announced plans to restore No. 4014 to operation for use in mainline excursion service. No. 4014 is expected to be operational by 2019.[1]

The UP Big Boys were an expansion of the 4-6-6-4 "Challenger" type articulated locomotive. Although their wheels were an inch (25 mm) smaller than those of the Challengers, they were still able to sustain high speeds. Adding four driving wheels increased the pulling power of the locomotive and reduced the need for helper locomotives over steep grades.

Other American railroads considered buying 4-8-8-4s, including the Western Pacific Railroad, which already rostered large 2-8-8-2s and 4-6-6-4s, but diesel locomotives were gaining popularity and soon were able to displace these monster locomotives.

External links[edit]

References[edit]

  1. ^ Trains Magazine. "Union Pacific Big Boy: Rebirth of a Legend". Retrieved 22 October 2013. 


Wikipedia content is licensed under the GFDL License
Powered by YouTube
MASHPEDIA
LEGAL
  • Mashpedia © 2015