USATC S160 Class


The United States Army Transportation Corps S160 Class is a class of 2-8-0 Consolidation steam locomotive designed for use in Europe during World War II for heavy freight work. A total of 2,120 were built and they worked on railroads across the world, including Africa, Asia, all of Europe and South America.

Design

During the 1930s, the United States Army Transportation Corps approved an update of a Baldwin Locomotive Works World War I design, in contingency for war transportation, to create the S159 Class. During the period of World War II, when America was neutral, the government of Franklin D. Roosevelt approved the Lend-Lease supply to the United Kingdom of the S200 Class, designed specifically to fit into the restricted British loading gauge.
With America's entry to World War II, the USATC needed a developed design from which to create a volume of locomotive power for the wrecked railways of Europe, which they could use to deploy military hardware and civilian goods. Hence, the design created by Maj. J. W. Marsh from the Railway Branch of the Corps of Engineers, learnt from both previous locomotives, designed on austerity principles and built, using methods which created efficient and fast construction speed over long life, such as axlebox grease lubricators and rolled plates preferred to castings.
With cast frames and cast wheels, the front two driving axles were sprung independently from the rear two driving axles, to allow for running on poor quality track. The larger tender layout was derived from the similar design for the WD Austerity 2-8-0, with the coal bunker inset above the water tank to improve visibility when running backwards.

Construction

British deployment

800 locomotives were constructed in 1942/3 in thirteen batches, split between ALCO, Baldwin and Lima Locomotive Works. Shipped to South Wales and dispatched from the GWR locomotive depot at Newport, Ebbw Junction, the first 43 locomotives were transferred to the LNER Doncaster Works for completion, and later running in over the East Coast Main Line. This started a pattern whereby each of the four British railway companies eventually deployed a total of 400 S160's under the guise of "running in," but factually replacing damaged stock and increasing the capacity of the British railway system to allow for shipping of military pre-invasion equipment and troops. The eventual deployment of S160's were:
The second batch of 400 S160's were prepared for storage by USATC personnel at the Great Western's Ebbw Junction locomotive depot in the immediate run-up to D-Day. After the D-Day invasion of Normandy, the locomotives deployed across Britain again began to be collected and be refurbished at Ebbw Junction in preparation for shipment to Europe.

Operational failures

The S160's were designed for quick and efficient building, not long-term operations, thus compromises in design led to some difficulties in operation. The axle-box grease-lubricators were not very efficient, particularly when maintenance procedures lapsed or were delayed for operational war reasons, and so axle-boxes often ran hot. Braking was poor by modern standards, with a Westinghouse steam brake used for the locomotive, which was woefully insufficient, due to the long distance from the driver's valve to the brake cylinder.
A major fault of the S160 was use of a single water gauge of a Klinger design, unfamiliar to U.K. crews. If the valves were not fully open, the crews could be misled into thinking that the water level was adequate, even though it was becoming dangerously low. When a low water condition allowed the crown sheet to overheat, the stay bolts holding the crown sheet would fail with little warning, resulting in a boiler explosion. In a space of ten months, three UK S160s suffered a collapse of the firebox crown, with the first leading to the death of a GWR fireman on No. 2403 in November 1943. Although there are claims that the stay bolts or firebox design were less than for domestic locomotive boilers, the locomotives were equipped with a "oiler built to comply in all aspects with the A.S.M.E. Boiler Code, except that the shell shall have a factor safety of 4."

Deployment

Judging accurately the actual deployment of 2120 locomotives is difficult, but the following numbers are referenced:

Europe

The British locomotives, together with those shipped direct from America were also similarly deployed first with troops reclaiming Europe, and then subsumed throughout European national railways as replacements for their destroyed stock after the war:
At the same time as S160s were being deployed into Britain, when General Patton led American troops in Operation Torch into the North African Campaign, their Transport Corps brought the S160s with them. These locomotives moved across the north of the continent as Patton's troops waged war, and when the troops moved to Italy the majority of their S160s moved up with them. These locomotives, supplemented with those directly imported from America, were eventually to create a group of 243 locomotives, subsumed by the Italian State Railway's to become the FS Class 736 class.
After World War II, the reconstruction of the world required transportation. The S160s were deployed to Asia under the United Nations Relief and Rehabilitation Administration, to China and South Korea.
Although "S160" has been popularly adopted as the class identification for this design of War Department Consolidation, it can not be verified as an official designation despite considerable research. The S160 designation is not found in 1942 and 1943 Baldwin drawing indexes, the Lima drawing index for the class, nor in meeting minutes in which representatives of the War Department and the three builders made several design decisions prior to production. It is also not found in any of approximately 900 engineering drawings which are still in existence. The Baldwin designation for the design, 2-8-0-19S, is found in their drawing indexs, on some drawings, and is stamped onto major locomotive components on examples built by Baldwin.

Variants

There were several major variants of the S160 class, excluding in-life design development:
Mainly due to their numbers, rather than the design or build quality, at least 26 examples of the S160 have survived into preservation, making them one of the most numerous survivors of all Mainline Steam Locomotives:
USATC No.BuilderPost World War II OwnerCurrent OwnerLocationNotes
1631Alco 70284 MÁV 411.388Great Central Railway Ruddington, Nottinghamshireunder restoration
2138Alco 70620 MÁV 411.380Great Central Railway Ruddington, NottinghamshireSource of strategic spares for 1631
2364Baldwin 69621 MÁV 411.337Great Central Railway Ruddington, NottinghamshireChassis only, source for strategic spares for 1631
2627Baldwin 69855 Alaska Railroad 556City of Anchorage Anchorage, Alaska
3523Baldwin 70480 Alaska Railroad 557 Wasilla, AlaskaAs of August 2012, being restored for operation.
5846Lima 8784 US Army 606Crewe Railroad Museum Crewe, VirginiaRe-lettered to Norfolk and Western #606
5187Lima 8846 US Army 2627; US Army 607US Army Transportation Museum Fort Eustis Military Railroad
2628Baldwin 69856 US Army 611Bill Miller Equipment Sales Eckhart Mines, MarylandFitted with Franklin Type B Rotary Cam Poppet valve gear, which is intended for use on the PRR 5550 project, undergoing restoration
2630Baldwin 69858 US Army 612Age of Steam Roundhouse Sugarcreek, OhioFrom Southeastern Railway Museum, Duluth, Georgia
1702Baldwin 64641 Reader RailroadGreat Smoky Mountains Railroad Dillsboro, North CarolinaOperational
5197Lima 8856 Fushun Industrial Railway, #KD6.463Churnet Valley Railway Stoke-on-Trent, StaffordshireOverhaul began 2013, returned to service February 2017.
6046Baldwin 72080 MÁV 411.144Churnet Valley Railway Stoke-on-Trent, StaffordshireOverhaul finished July 2012, Returned to service December 2012.
2253Baldwin 69496 PKP Tr.203.208Peter Best Dartmouth Steam Railway6 June 2019 Full restoration completed by Steam Powered Services in Stockton. Renamed Omaha Beach honouring the 75th anniversary of the D-Day invasion.
5820Lima 8758 PKP Tr.203.474Keighley and Worth Valley Railway West YorkshireReturned to service in January 2014 following overhaul
3278Baldwin 70340 FS 736.073; SEK Θγ575Tyseley Locomotive WorksTyseley, West Midlands#701 Franklin D. Roosevelt, Under overhaul at Tyseley for Long Marston Military Railway
5164Lima 8823 PKP Tr.201.51Polskie Koleje Państwowe Jaworzyna Śląska
2438ALCO 70787 PKP Tr.203.296Polskie Koleje Państwowe Jaworzyna Śląska
5801Lima 8739 PKP Tr203-451Polskie Koleje Państwowe Warsaw Railway Museum
3540Baldwin 70497 MÁV 411.118Hungarian Railway MuseumBudapestOperational, wore incorrect builders plate from ALCO 70587. Correct builder's plate restored in July, 2020.
2781Lima 8434 MÁV 411.264Railway station HatvanPlinthed
6056Baldwin 72090 MÁV 411.358Railway station HegyeshalomPlinthed
1786Baldwin 67679 MÁV 411.005Unknown KomaromBoiler only.
2206Lima 8212 SEK Θγ 525OSE Thessaloniki Old Depotstored
2524Lima 8341 TCDD 45172Turkish State Railways Çamlık Railway Museum
2879Alco 71076 TCDD 45174Turkish State Railways Ankara Railway Museum
3292Alco 71547 FS736.083Museo Ferroviario Piemontese TurinAwaiting restoration
3324Alco 71579 FS 736.114FS Pietrarsa railway museum
Baldwin-Lima-Hamilton 75503 US Army 610Tennessee Valley Railroad Museum Chattanooga, TennesseeOut of service for its 1472 inspection & rebuild. 610 is technically not an S-160 but classified as a type A, constructed in 1952
3524Baldwin 70481 SEK Θγ 532OSE Thessaloniki Old Depotstored
2226Lima 8232 SEK Θγ 535OSE Thessaloniki Old Depotstored
3299ALCo 71554 FS 736.090; SEK Θγ 576OSE Tithorea Depotstored. Oil burner, bought from Italian FS in 1959
3420Baldwin 70377 FS 736.158; SEK Θγ 584OSE Thessaloniki Old Depotstored. Oil burner, bought from Italian FS in 1959. Has tender from Θγ 689
3698Lima 8611 FS 736.207; SEK Θγ 593OSE Thessaloniki Depotstored. Oil burner, bought from Italian FS in 1959