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
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::
3
Union Pacific Big Boy 4005 (4-8-8-4)
Union Pacific Big Boy 4005 (4-8-8-4)
DATE: 2011/09/17::
4
Western Steam Power "Big Boy
Western Steam Power "Big Boy's in Action"
DATE: 2011/01/12::
5
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::
6
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::
7
HO Scale 4-8-8-4 "Big Boy"
HO Scale 4-8-8-4 "Big Boy"
DATE: 2008/07/31::
8
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::
9
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::
10
MTH Union Pacific Big Boy 4-8-8-4 #4016
MTH Union Pacific Big Boy 4-8-8-4 #4016
DATE: 2013/09/20::
11
Broadway Limited 4-8-4 Northern #3751 ATSF review (2nd run) HO Scale Paragon 2
Broadway Limited 4-8-4 Northern #3751 ATSF review (2nd run) HO Scale Paragon 2
DATE: 2013/06/05::
12
UP 4014 Big Boy Rolling at Pomona, CA
UP 4014 Big Boy Rolling at Pomona, CA
DATE: 2013/11/14::
13
ATHEARN GENESIS HO BIG BOY 4-8-8-4 SMOKING
ATHEARN GENESIS HO BIG BOY 4-8-8-4 SMOKING
DATE: 2010/03/26::
14
N Scale Bachmann Spectrum 2-8-8-4 EM-1 B&O Yellowstone
N Scale Bachmann Spectrum 2-8-8-4 EM-1 B&O Yellowstone
DATE: 2013/12/30::
15
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::
16
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::
17
Adrian
Adrian's Union Pacific Gas Turbine and 4-8-8-4 Big Boy
DATE: 2010/01/31::
18
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::
19
HO Scale Union Pacific 4-8-8-4 Big Boy
HO Scale Union Pacific 4-8-8-4 Big Boy
DATE: 2009/05/19::
20
Athearn Genesis "Big Boy" 4-8-8-4
Athearn Genesis "Big Boy" 4-8-8-4
DATE: 2010/05/14::
21
LEGO TRAIN BIG BOY 4-8-8-4 INSTRUCTIONS
LEGO TRAIN BIG BOY 4-8-8-4 INSTRUCTIONS
DATE: 2013/08/24::
22
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::
23
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::
24
ACCUCRAFT  UP 4-8-8-4 BIG BOY, LIVE STEAM
ACCUCRAFT UP 4-8-8-4 BIG BOY, LIVE STEAM
DATE: 2012/07/31::
25
Union Pacific "Big Boy" 4-8-8-4 Steam Locomotive - N scale by Athearn
Union Pacific "Big Boy" 4-8-8-4 Steam Locomotive - N scale by Athearn
DATE: 2013/01/27::
26
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::
27
MTH Premier UP Big Boy (4-8-8-4) O-Gauge Steam Locomotive with the Caboose Train in True HD 1080p
MTH Premier UP Big Boy (4-8-8-4) O-Gauge Steam Locomotive with the Caboose Train in True HD 1080p
DATE: 2010/11/03::
28
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::
29
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::
30
Big Boy 4-8-8-4 N-scale
Big Boy 4-8-8-4 N-scale
DATE: 2008/04/27::
31
Train Simulator 2015 - Sherman Hill, 4-8-8-4 UP Big Boy
Train Simulator 2015 - Sherman Hill, 4-8-8-4 UP Big Boy
DATE: 2015/04/01::
32
BLI Blue Line Custom 4-8-8-4 Big Boy
BLI Blue Line Custom 4-8-8-4 Big Boy
DATE: 2010/01/15::
33
Bachmann EM-1 2-8-8-4 Yellowstone with SoundTraxx Tsunami
Bachmann EM-1 2-8-8-4 Yellowstone with SoundTraxx Tsunami
DATE: 2012/11/19::
34
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::
35
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::
36
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::
37
ATHEARN  GENESIS BIG BOY 4-8-8-4
ATHEARN GENESIS BIG BOY 4-8-8-4
DATE: 2011/03/14::
38
Athearn N Scale Big Boy 4-8-8-4
Athearn N Scale Big Boy 4-8-8-4
DATE: 2013/04/24::
39
Lego big boy 4-8-8-4  2013
Lego big boy 4-8-8-4 2013
DATE: 2013/10/16::
40
HO NYC S-1b 4-8-4 Niagara with Tsunami sound
HO NYC S-1b 4-8-4 Niagara with Tsunami sound
DATE: 2013/01/24::
41
lego 4-8-8-4 big boy 1
lego 4-8-8-4 big boy 1
DATE: 2011/12/09::
42
Athearn GENESIS Big Boy 4-8-8-4
Athearn GENESIS Big Boy 4-8-8-4
DATE: 2010/09/06::
43
MTH PREMIER 4-8-8-4 BIG BOY w/DYNAMO/WHISTLE SMOKE UPGRADE!!!
MTH PREMIER 4-8-8-4 BIG BOY w/DYNAMO/WHISTLE SMOKE UPGRADE!!!
DATE: 2013/05/05::
44
MTH 4-8-8-4 Railking Challenger
MTH 4-8-8-4 Railking Challenger
DATE: 2015/02/28::
45
K-Line Big Boy 4-8-8-4
K-Line Big Boy 4-8-8-4
DATE: 2011/12/31::
46
Athearn 4-8-8-4 BigBoy UP
Athearn 4-8-8-4 BigBoy UP
DATE: 2008/03/03::
47
N Scale Bachmann Sound Value 2-8-4 Berkshire
N Scale Bachmann Sound Value 2-8-4 Berkshire
DATE: 2015/03/31::
48
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::
49
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::
50
N scale 4-8-8-4 Big boy and Amtrak train.
N scale 4-8-8-4 Big boy and Amtrak train.
DATE: 2010/11/28::
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RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
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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. 


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