View source for USATC S118 Class

{{Infobox locomotive
|name=USATC S118 class
|powertype=Steam
|image=20070420-KORINTHOS-DA-7108.jpg
|imagesize=310px
|caption=SPAP Δ108, later SEK 7108, a post-war S118 copy, displayed at [[Hellenic Railways Organisation rolling stock#Preserved steam locomotives|Corinth Old Station]], April 2007
|builder=[[American Locomotive Company]] (338),<br>[[Baldwin Locomotive Works]] (253+33),<br>[[Davenport Locomotive Works]] (67+6),<br>[[HK Porter]] (25+5),<br>[[Vulcan Iron Works]] (58+8)
|builddate=1942–1945 (for USATC),<br>1945–1948 (copies)
|totalproduction=741 for USATC, 52 copies
|whytetype=[[2-8-2]]
|uicclass=1′D1′ h2
|gauge={{Track gauge|3ft|lk=on}}<br>{{Track gauge|1000mm|allk=on}}<br>{{Track gauge|3ft6in|lk=on}}
|leadingdiameter = {{convert|26|in|mm|0|abbr=on}}
|driverdiameter  = {{convert|48|in|mm|0|abbr=on}}
|trailingdiameter= {{convert|30|in|mm|0|abbr=on}}
|length={{convert|59|ft|5+1/2|in|mm|0|abbr=on}}
|weightondrivers={{convert|80000|lb|kg t|sigfig=3|abbr=in|sp=us}}
|locoweight     ={{convert|119000|lb|kg t|sigfig=4|abbr=in|sp=us}}
|tenderweight   ={{convert|96700|lb|kg t|sigfig=4|abbr=in|sp=us}}
|fueltype=[[Coal]] or [[fuel oil]]
|fuelcap={{convert|18000|lb|kg t|sigfig=3|abbr=in|sp=us}}
|watercap={{convert|5000|usgal|sigfig=5|abbr=on}}
|firearea={{convert|27.7|sqft|m2|abbr=on}}
|tubesandflues={{convert|1256|sqft|m2|abbr=on}}
|fireboxarea={{convert|115|sqft|m2|abbr=on}}
|totalsurface={{convert|1371|sqft|m2|abbr=on}}
|superheaterarea={{convert|374|sqft|m2|abbr=on}}
|boilerpressure={{convert|185|lbf/in2|MPa|2|abbr=on}}
|cylindercount=Two, outside
|cylindersize={{convert|16|x|24|in|mm|0|abbr=on}}
|valvegear=[[Walschaerts valve gear|Indirect Walschaerts]]
|valvetype=
|tractiveeffort={{convert|20100|lbf|kN|1|abbr=on}}
|factorofadhesion=3.98
|operator=[[United States Army Transportation Corps|USATC]]
|fleetnumbers=3000–3029, 130–249, 257–639, 661–788, 811–890
|locale=North America, South America, North Africa, West Africa, East Africa, Middle East, South and South East Asia, Australia
}}
The [[United States Army Transportation Corps]] (USATC) '''S118 Class''' is a class of [[2-8-2]] [[steam locomotive]].  Built to either {{Track gauge|3ft|lk=on}}, {{Track gauge|1000mm|allk=on}} or {{Track gauge|3ft6in|lk=on}} gauge, they were used in at least 24 different countries.

Based on Australia's new [[Queensland C17 class locomotive|C17 class]] locomotives, their specifications were forwarded to the United States where the [[United States Army Transportation Corps]] (USATC) drew up plans for a 2-8-2 with specifications similar to a C17 class. 741 were built in the period late 1942–1945 with a further 52 appearing between 1945 and 1948.  They were built by [[Baldwin Locomotive Works|Baldwin]] (253+33), [[American Locomotive Company|Alco]] (338), Porter (25+5), [[Davenport Locomotive Works|Davenport]] (67+6) and [[Vulcan Iron Works|Vulcan]] (58+8) in the United States. The first thirty were numbered 3000–3029, with subsequently locomotives numbered 130–249, and 257–889. Locomotives 640–660 and 789–810 were cancelled.

The first twenty locomotives (3000–3019) were sent to Nigeria. Eleven, (190–200), were converted to {{RailGauge|3ft}} gauge by putting {{convert|3|in|mm|1|abbr=on}} wide spacers (rings) between the [[wheel]]s and the [[Bogie|truck]] [[side frame]]s on same length [[axle]]s, and delivered to the [[White Pass and Yukon Route#Operations during World War II|White Pass and Yukon Route]] in [[Alaska]]. Twenty (216–235) were delivered to [[Queensland]] where they formed the [[Queensland Rail]]ways' [[Queensland AC16 class locomotive|AC16 Class]]. Others were sent to North Africa, [[Gold Coast (British colony)|Gold Coast (Africa)]], [[Iraq]], India, and [[Burma]].

After the war, surplus locomotives were sold to [[British Malaya|Malaya]], the [[Philippines]] (as Manila Railroad 850 class),<ref>{{Cite web |first=Jonathan |last=Smith |title=Manila Railroad steam locomotives |url=https://jdhsmith.math.iastate.edu/term/slphmrr.htm |publisher=[[Iowa State University]] |access-date=January 22, 2021}}</ref> [[Siam]], [[Cambodia]], [[Cameroon]], [[East African Railways and Harbours Corporation#Railways|Tanganyika]],<ref>{{cite book |last=Tourret |first=R |isbn=0-905878-00-0 |year=1976 |title=War Department Locomotives |place=Abingdon |publisher=www.tourretpublishing.com|page=35}}</ref> northern [[Argentina]], [[Taiwan]] and the [[United Fruit Company]] (for operations in [[Costa Rica]] and [[Honduras]]).

==Copies==
Baldwin built 33 copies for the [[Indian Railways]], Porter built two for the [[Chemins de Fer des Grands Lacs]] in the [[Belgian Congo]], Vulcan built a batch of eight for the [[Piraeus, Athens and Peloponnese Railways]] (SPAP) in [[Greece]] ([[SPAP class Δ (Vulcan)|class Δ]]).{{sfn|Durrant|1972|p=58}} Davenport built six with a higher boiler pressure for the [[Chemin de Fer Franco-Ethiopien]] de [[Djibouti]] á [[Addis Ababa|Addis-Ababa]].

==Survivors==
Several S118 locomotives still exist:
{| class="wikitable"
!No.
!Builder
!Post WW2 Owner
!Current Owner
!Location
!Status
!Image
!Notes
|-
|<small>'''190'''</small>
|<small>Baldwin 69425</small>
|<small>[[White Pass and Yukon Route]]</small>
|<small>[[Tweetsie Railroad]]</small>
|<small>{{flagicon|USA}} [[Blowing Rock, North Carolina]], United States</small>
|<small>Operational</small>
|[[File:TweetsieRailroadNo190 2022.jpg|200px]]
|<small>Named "The Yukon Queen".</small>
|-
|<small>'''192'''</small>
|<small>Baldwin 69427</small>
|<small>[[White Pass and Yukon Route]]</small>
|<small>[[Dollywood]]</small>
|<small>{{flagicon|USA}} [[Pigeon Forge, Tennessee|Pigeon Forge]], [[Tennessee]], United States</small>
|<small>Operational</small>
|[[File:Dollywood Express 192 Owens Farm.jpg|200px]]
|<small>Named "Klondike Katie".</small>
|-
|<small>'''195'''</small>
|<small>Baldwin 69430</small>
|<small>[[White Pass and Yukon Route]]</small>
|<small>[[Skagway, Alaska|City of Skagway]]</small>
|<small>{{flagicon|USA}} [[Skagway, Alaska|Skagway]], [[Alaska]], United States</small>
|<small>Displayed</small>
|[[File:Skagway ENBLA07.jpg|200px]]
|
|-
|<small>'''[[Queensland AC16 class locomotive|218]]'''</small>
|<small>Baldwin 69453</small>
|<small>[[Queensland Rail]]ways</small>
|<small>[[Zig Zag Railway]]</small>
|<small>{{flagicon|Australia}} [[Lithgow, New South Wales]], Australia</small>
|Under overhaul
|[[File:218A Zig Zag.jpg|200x200px]]
|<small>Named "The Yank"</small>
|-
|<small>'''[[Queensland AC16 class locomotive|221]]'''</small>
|<small>Baldwin 69456</small>
|<small>[[Queensland Rail]]ways</small>
|<small>[[Queensland Rail]]</small>
|<small>{{flagicon|Australia}} [[Ipswich, Queensland]], Australia</small>
|<small>Operational</small>
|[[File:AC16 221A Ipswich Workshops.jpg|200px]]
|<small>Mainline Certified</small>
|-
|<small>'''1798'''</small>
|<small>Baldwin 74011</small>
|<small>[[Northeast Frontier Railway]]</small>
|<small></small>
|<small>{{flagicon|India}} [[New Jalpaiguri]], India</small>
|<small>Operational</small>
|[[File:Njp station 4.jpg|200px]]
|<small>Post war copy</small>
|-
|<small>'''Δ-101'''</small>
|<small>Vulcan 4700</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Myloi, Argolis|Myloi]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7101</small>
|-
|<small>'''Δ-102'''</small>
|<small>Vulcan 4701</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Myloi, Argolis|Myloi]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7102</small>
|-
|<small>'''Δ-103'''</small>
|<small>Vulcan 4702</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Myloi, Argolis|Myloi]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7103</small>
|-
|<small>'''Δ-104'''</small>
|<small>Vulcan 4703</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Kalamata]], [[Greece]]</small>
|<small>Displayed</small>
|[[File:Kalamata Municipal Railway Park 36.jpg|200px]]
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7104</small>
|-
|<small>'''Δ-105'''</small>
|<small>Vulcan 4704</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Kalamata]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7105</small>
|-
|<small>'''Δ-106'''</small>
|<small>Vulcan 4705</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Tripoli, Greece|Tripolis]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7106</small>
|-
|<small>'''Δ-107'''</small>
|<small>Vulcan 4706</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Myloi, Argolis|Myloi]], [[Greece]]</small>
|<small>Dumped</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7107</small>
|-
|<small>'''Δ-108'''</small>
|<small>Vulcan 4707</small>
|<small>[[Piraeus, Athens and Peloponnese Railways]]</small>
|<small>[[Hellenic Railways Organisation|OSE]]</small>
|<small>{{flagicon|Greece}} [[Corinth]], [[Greece]]</small>
|<small>Stored</small>
|
|<small>Post-war copy, later [[Hellenic State Railways|SEK]] No. 7108</small>
|-
|}

==References==
{{reflist}}
{{refbegin}}
*{{cite book |last=Durrant |first=A. E. |year=1972 |orig-year=1966 |title=The Steam locomotives of Eastern Europe |location=Newton Abbot, Devon |publisher=David and Charles |isbn= 0-7153-4077-8 }}
*{{Tourret-Allied Military Locomotives|pages=190–207}}
*{{cite web |url=http://orion.math.iastate.edu/jdhsmith/term/slusatc.htm |title=USATC steam locomotives |access-date=2009-02-05 |last=Smith |first=J.D.H. }}
{{refend}}

== External links ==
{{Commons category|USATC S118 Class}}
* http://narrowmind.railfan.net/WPYR/late-steam/190dia.JPG
* http://www.steamlocomotive.com/australia/data.shtml
* http://www.qrig.org/motive-power/steam/ac16-class/
* http://www.railsnorth.com/wpyr-190s.pdf

[[Category:USATC S118 Class| ]]
[[Category:United States Army locomotives|S118]]
[[Category:2-8-2 locomotives]]
[[Category:Steam locomotives of Myanmar]]
[[Category:Steam locomotives of India]]
[[Category:Steam locomotives of Taiwan]]
[[Category:Steam locomotives of Thailand]]
[[Category:Steam locomotives of Cambodia]]
[[Category:Steam locomotives of the Philippines]]
[[Category:Metre-gauge steam locomotives]]
[[Category:3 ft 6 in gauge locomotives]]