Idaho Northern / Oregon Railroad & Navigation / Oregon Railway & Navigation / Oregon Short Line / Oregon-Washington RR & Navigation / Pacific & Idaho Northern / San Pedro, Los Angeles & Salt Lake / St.Joseph & Grand Island / Union Pacifc / Union Pacific / Union Pacific, Denver & Gulf 4-6-0 "Ten-wheeler" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 100/900 (Locobase 6587)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. The first batch came from Rhode Island Locomotive Works (builder's numbers 54-55, 61-66 in 1868) as 900-907 while Baldwin (then trading under M. Baird & Company) supplied road numbers 909-918 (builder's numbers 1707-1708, 1710, 1715-1716, 1764-1765, 1768, 1770, 1774).

This class is a Ten-wheeler extension of the 842-class 4-4-0 design shown in Locobase 6587. The boiler seems to have had a 5 1/2-ft section inserted ahead of the front sheet of the firebox, although very little of the new length consisted of tubes.


Class 101 (Locobase 13060)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 30, p. 132. Works number was 30556 in April 1907

As noted in Locobase 13057, the 8 locomotives intended for the Morelia y Tacambaro in Guanajunto, Mexico were redirected to several other railroads.

Nampa, Ida served as headquarters for this short line, which picked up the 101 at Baldwin's fire sale. The IN was incorporated as the successor to the Boise, Nampa & Owyhe in 1902. At the time, the line ran 30 miles from Nampa to Murphy. When the Oregon Short Line took over the IN in 1912, the line ran from Nampa to Banks. In 1915, the OSL's motive power was incorporated by the Union Pacific and the 101 was renumbered 1502.


Class 102 (Locobase 8343)

Data from UP 11 - 1946 Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 30969 in May 1907; 35599-35600 in November 1911.

This trio of Ten-wheelers operated in Idaho on the UP's P & IN subsidiary after their delivery in 1907 (102) and 1910 (104-105). A smaller 4-6-0 delivered in the same period appears in Locobase 8344.

They were eventually integrated into the parent railroad's numbering system. Small and lightweight, the class operated until 1946-1947.


Class 103 (Locobase 8344)

Data from UP 11 - 1946 Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works number was 30616 in April 1907.

Mixed in with the 18" x 26" Ten-wheelers (Locobase 8343) delivered over several years, Baldwin sent along this single, smaller locomotive. It seems to have been sized for its railroad and had a small pair of cylinders as well as a modest-sized boiler and grate.

103 was renumbered 1585 by the UP in 1935 and continued to serve its Idaho customers until May 1947.


Class 1220 (Locobase 7442)

Data from 1918 Union Pacific Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 30607, 30626-30632, 30674-30675 in April 1907; 33754-33757, 33770-33773, 33786-33787 in September 1909; 36403-36406, 36456-36461 in April 1911.

Connelly's list shows these as 0-6-0s powered by 19"x 26" cylinders from the start, but the 1918 UP diagram book represents the class as Ten-wheelers with the 19"x 24" cylinders described in the specifications. Four (1221, 1231-1232, 1238) were given 69"drivers, which resulted in a tractive effort of 17,610 lb.

A few were superheated in a modification that replaced 122 small tubes with 21 5 3/8" flues, but most were converted to 0-6-0s beginning in 1915 and renumbered in the 4369-4400 series.


Class 1242 (Locobase 8341)

Data from UP 11 - 1946 Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Locobase 7442 describes the original 4-6-0 design that was superheated in the UP shops. The modification replaced 122 small tubes with 21 5 3/8" flues.


Class 1250 - superheated (Locobase 7444)

Data from 1918 Union Pacific Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

When the UP superheated these medium-size Ten-wheelers, they replaced 163 small tubes with 27 flues. Locobase doesn't know when these locomotives were refitted. The first of the superheated locomotives were retired in 1937.


Class 1320 - simpled & superheated (Locobase 6603)

Data from 1918 Union Pacific Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

When the 1320 compounds (Locobase 6602) were simpled not too long after they entered service, they took on the same characteristics as the 18 others that had been delivered as simple-expansion locomotives. Compared to the compounds, the simple-expansion design's firebox heating surface as calculated dropped considerably. In the 1920s, the few survivors were superheated with the usual loss of heating surface. The driver diameter was cut by 3" as well. Retirements occurred sporadically over a 15-year period from 1921 to 1936.


Class 1360 - simpled and superheated (Locobase 7434)

Data from 1918 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Although the Union Pacific did not operate a lot of Ten-wheelers, at least some of them were deemed worthy of updating. Some of the 1360 compounds (profiled in Locobase 6604) first were simpled along the same lines as other UP compounds. Later, the railroad removed half of the small tubes from the original boiler and replaced them with 26 flues. At least a couple of this class operated into the 1930s with these boilers.


Class 1400 (Locobase 6593)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php#oslun1459_4-6-0. Works numbers were 584-588 in April 1890.


Class 1405 (Locobase 6594)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php#oslun1459_4-6-0. Works numbers were 2452-2461 in October 1890, 2462 in November.

These were identical to the 1400s shown in Locobase 6593; by the time the UP documented in the referent diagram folio, the driver diameters had been reduced to 51".

As such , the entire class went to work for the Colorado & Southern in 1899 when that reilorad assumed control of the UP, D & G.

Locobase suspects that the 6 produced in February 1891 (works 2506-2511) and delivered to the Oregon Short Line as 1459-1464 were very similar except for the Belpaire boilers.


Class 148 / T-57 (Locobase 7839)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up05-1915-1962-06.php . Works numbers were 2321-2324 in October 1895.

Long-lasting Ten-wheelers operating in Oregon. 1734 was modified to carry many fewer tubes; see Locobas 7840.

Except for the 1736, which was "vacated" in 1923, this class remained in service into the 1940s. 1735 was vacated in 1940, 1733 in 1945, and 1734 in 1946.


Class 1500 (Locobase 7844)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php#oslun1459_4-6-0. Works numbers were 2059-2070 in October 1890.

According to Strack, these were delivered with 63" drivers, but later modified to roll on 51". The diagram shows 57", which may have reflected an even later update.


Class 152 /T-57 (Locobase 7841)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up05-1915-1962-06.php . Works numbers were 2379-2383 in December 1897.

Compared to the earlier ORR & N Ten-wheelers, these were bigger locomotives with larger boilers and grates. Thus they appeared to have an abundance of steam for any speed their 57" drivers might permit them to haul freight. Their fireboxes were later fitted with oil-burners.


Class 1703 / 1250 (Locobase 6599)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Additional information from 1899 Brooks catalogue. The two conflict, so Locobase chose the UP diagrams as definitive of the railroad's measurements. Works numbers were 3235-3274.

Described in Britain's Locomotive Magazine (October 1900, p. 152) as "The Most Powerful Ten-Wheeler on Earth" - how very Barnumesque. Tapered boiler, firebox with 20 sq ft of arch pipes, widely flared spark-arresting stack, steel clerestory cab, inside valve motion, small drivers. Many of these were superheated later; see Locobase 7444.


Class 1800 - 69"" (Locobase 6601)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. New York works numbers were 589-591 in April 1890, 592-601 in May, 602-605 in June.

Boiler pressure from the 1918 diagram book. The diagram book shows that at least some of the 1800/1300 class (Locobase 6600) were refitted with 69" drivers. The change reduced tractive effort, but rendered them more suitable for passenger-train service.

All were retired in the mid-1920s


Class 1800 / 1300 (Locobase 6600)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php . This design was an enlargement of the 1400s and shared the same firebox. When they were renumbered in the 1300s, the heating surface had dropped slightly as 4 tubes were removed and 30 sq ft of firebox heating surface was subtracted. The new totals were 163.3 sq ft direct heating surface and 1,900.6 sq ft total evaporative heating surface.


Class 1820/1320 (Locobase 6602)

Data from 1897 Union Pacific Folio 200 and UP 5 - 1918 Locomotives & Tenders supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 23, p. 148; "Heavy 10-Wheel Compound Passenger Locomotive", American Engineering and Railroad Journal, Volume 75, No.2 (February 1901), pp 54-55. Baldwin works numbers:

1900

18326-18331, 18361-18362 in October; 18382-18385 in November; 18425-18426, 18429, 18434, 18481-18482, 18484-18485 in December

1901

18898-18901, 18929-18932 in April; 18979-18984, 19039-19040 in May; 19111-19112, 19136-19137 in June

Part of a slew of Vauclain compounds delivered to the UP at the turn of the 20th Century.

Connelly's Baldwin list indicates that the first six engines had a 30" stroke; none of the other sources (including the Baldwin specs) show a 30" variant. The AERJ asserted that at the time of publication (February 1901), "in heating surface [they] have not been exceeded by any engines of the 10-wheel type of which we have record."

These were converted to simple-expansion engines -- see Locobase 9673 -- and later superheated; see Locobase 6603.


Class 1820/1320 simpled (Locobase 9673)

Data from UP 5 - 1918 Locomotives & Tenders supplied in May 2005 by Allen Stanley from his extensive Raildata collection

These ten locomotives were part of a slew of Vauclain compounds delivered to the UP at the turn of the 20th Century (Locobase 6602). They differed from the later engines in their class in having 69" drivers.

Not too long after their arrival on the UP, the railroad followed the pattern adopted by many other railroads and converted their compounds to simple-expansion engines as shown in the specifications. These were later superheated; see Locobase 6603.


Class 1830/1330 simpled (Locobase 9674)

Data from UP 5 - 1918 Locomotives & Tenders supplied in May 2005 by Allen Stanley from his extensive Raildata collection Works numbers were:

Delivered as part of a large contingent of Vauclain compounds with 15 1/2" HP and 25" LP cylinders (Locobase 6602), these engines had 72" drivers (73" when fitted with 3 1/2" tires). Not too long after their arrival on the UP, the railroad followed the pattern adopted by many other railroads and converted their compounds to simple-expansion engines as shown in the specifications. These were later superheated; see Locobase 6603.


Class 1860/1360 (Locobase 6604)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 25, p. 146. (Thanks to Chris Hohl for his email and spreadsheet providing details on this class as well as the cite to the Baldwin specifications volume of SMU's DeGolyer Library collection.) Works numbers were 21424, 21426 in December 1902; 21438-21439, 21443, 21457, 21466-21467, 21486 in January 1903, 21656 in February

This batch of Vauclain compounds differed from the 1830s (Locobase 659) in the layout of the firebox. The heating surface is considerably smaller as calculated, but the grate area grew substantially.They also featured smaller drivers. Like the cylinders in the other compounds, however, these too were supplied their steam through 13" (330 mm) piston valves. When ordered, the engines trailed Vanderbilt cylindrical tenders carrying 7,000 US gallons (26,495 litres).

Conversion to simple expansion meant only replacement of the Vauclain package with two 20" x 24" cylinders. This resulted in a tractive effort of 30,220 lb. Strack's roster states that half the class--1362, 1363, 1364, 1365, 1367, and 1369--retained their compound setups at least beyond May 1918.

This class began retirements a little later than the other UP Ten-wheelers -- 1927 -- but had all left the road by 1934.


Class 30 (Locobase 6578)

Data from 1914 ST J & GI locomotive diagram supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Rogers works #5350 was noted in this diagram book on this page 7; three more had already been retired or sold by 1914. 3 more Tenwheelers were delivered with cylinders 1" smaller in diameter. See Locobase 6577

Like the other St J & GI locomotives shown, this was a relatively lightweight and small example of its arrangement.


Class 33 (Locobase 6577)

Data from 1914 ST J & GI locomotive diagram supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Rogers works #5244, 5246, 5349 were noted in this diagram book on this page -- it turns out that 4 more Tenwheelers were delivered with cylinders 1 inch greater in diameter. See Locobase 6578.

Like the other St J & GI locomotives shown, this was a relatively lightweight and small example of its arrangement.


Class 400 (Locobase 12526)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 24, p. 50. Works numbers were 19173-19176, 19233-19234 in July 1901.

These were delivered as long-stroke Vauclain compound Consolidations with 15 1/2" HP and 26" LP cylinders. In 1923, two were converted to the simple-expansion layout shown in Locobase 8345.

The four that retained their Vauclain-compound layout were retired in 1927-1928.


Class 720 / T-57 - 263 (Locobase 7842)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers ran 2446-2449 in April 1899, 2450-2453 in June.

It's not clear to Locobase whether all of these locomotives were delivered with crown-bar boilers, but he supposes so. The data then show the locomotives as delivered. At least 3 of the engines were later fitted with radial stay boilers that differed in the size and number of boiler tubes: 263 2 1/4" tubes were replaced by 318 2" tubes. Total evaporative heating surface rose to 2,397 sq ft.

Five of the octet -- 1547-1548, 1550-1551, 1553 -- were "vacated" on the same day - 7 December 1926. The other 3 --1546, 1549, 1552 -- were withdrawn in January 1928.


Class 750 (Locobase 9516)

Data from "Cooke Locomotive for Oregon Short Line," Railway and Locomotive Engineering, October 1899, page 459. Works numbers were 2461-2468 in July 1899.

The Paterson builder supplied these relatively large Ten-wheelers as a batch (works #2461-2468). The last course of boiler was sharply coned upward to the dome, which stood just ahead of the cab. Valve gear appears to have been Walschaert and the large spark-arresting stack signified the locomotives' forested destination.


Class 919 (Locobase 7441)

Data from 1918 Union Pacific Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php#oslun1459_4-6-0.

Taunton's big contract with the UP seems to have covered these 85 Ten-wheelers. The first began delivery before the Golden Spike ceremony at Promontory and Taunton added to the class for 12 years. Many were delivered with 54" drivers and later fitted with the 57" sets shown in the specs. Others arrived on 60" drivers that were later traded for the 57" sets.

Most of the class was retired before the 1915 renumbering, but 16 lasted in service until the mid-1920s.


Class 922 / 1701 (Locobase 6598)

Data from 1897 Union Pacific Locomotives & Tenders Folio 200 supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

According to http://utahrails.net/up/steam/up-steam-1885-1915.php

(visited 14 July 2005), this pair was delivered in 1868 as part of an order from the Taunton works. The class originally had numbers 93-99. In 1892, 95-96 were rebuilt as 1700-1701, 99 was rebuilt as a 4-4-0 in 1894.


Class DL 67 / T-68 (Locobase 7262)

Data from SPLA&SL Locomotive Diagram book (the Salt Lake Route) supplied in May 2005 by Allen Stanley from his extensive Raildata collection. (Many thanks to Dan Watson for his 10 May 2016 email noting the 3201's movie role.) Works numbers were 3928-3929 in August 1901 and Schenectady works numbers were 6129-6132 in January 1902.

Brooks and Schenectady delivered Ten-wheelers to the LASL. From the evidence Locobase finds in Drury (1993), Two came from Brooks (works numbers 3928-3929), four more from Schenectady.

3201 starred in the gripping Hazards of Helen episode "The Wild Engines" in 1915 starring Helen Holmes. See Locobase 418 for more details on these cliffhangers.

As Drury notes, the parent Union Pacific wasn't big on 4-6-0s and these apparently were retired in 1925 with little or no updating beforehand.


Class T-57 (Locobase 7840)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up05-1915-1962-06.php . Locobase can't figure why two locomotives for the same railroad would be identical except for the number of boiler tubes in the barrel when neither is superheated. Yet a comparison with Locobase 7839 shows no other differences. Strack's roster provides no additional information.


Class T-63 (Locobase 7843)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Builder and roster data from Don Strack's compilation presented on Utah Rails' http://utahrails.net/steam/up03-upsys1885-1898-09.php#oslun1459_4-6-0. Works numbers were 507-510 in October 1889 and 511-512 in November.

Locobase assigns the builder and road numbers to this entry because it was the only set of Ten-wheelers delivered to the ORR & N in 1889. At that time, the locomotives rolled on 56" drivers; they were later given the 63" drivers shown in the specs.


Class T-63 - 1908s (Locobase 7845)

Data from OWRR&NCo 1 - 1930 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 45045-45050 in April 1908.

Whenever this batch was superheated, these OWRR&N Ten-wheelers were among the biggest operated by any railroad. Although freight-oriented, their superheaters, good amount of direct heating surface, and large boiler offered the potential for long-distance steaming. On the other hand, the design had a relatively small grate that probably proved to be the principal limiting factor.


Class T-64 - 1730 (Locobase 8345)

Data from UP 11 - 1946 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Originally, the OWRRN took delivery of six Ten-wheelers from Baldwin in 1901; this original configuration is shown in Locobase 12526. Two were fitted with a superheated boiler. The modification took a familiar form in which dozens of small tubes were deleted in favor of a modestly scaled superheater installation. 1730 was fitted with Young valve gear while 1731 operated Walschaert valve gear.

The first of the class retired in 1927, but the last, presumably superheated, engine of the sextet operated until 1948.


Class T-69 / 211 (Locobase 13531)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 33, p. 234. Works numbers were 33712, 33717, 33723 in August 1909; 33741-33743 in September; 36121-36123, 36144-36146, 36160 in March 1911.

See Locobase 10350 for the Oregon Short Line Ten-wheelers that were identical. They too had 12"-diameter piston valves, but larger tenders.

Like those locomotives, these Navigators were later superheated; see Locoobase 8346.


Class T-69 / 810 (Locobase 13530)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 33, p. 234. Works numbers were 33686-33692 in September 1909; 36190-36194 in March 1911.

The Harriman Lines' attempt at designing a common set of locomotives for all of its lines (e.g., Locobases 5340-5342) did not include a Ten-wheeler. When the component railroads (which included such heavyweights as the Southern Pacific and the Union Pacific) established a need for new, more powerful 4-6-0s, the resulting engines alluded to Harriman designs in many respects.

Like many of these early 20th-Century engines, this class would be superheated. See Locobase 8342.


Class T2 / 1572 (Locobase 8342)

Data from UP 11 - 1946 Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 33686-33692 in August 1909 and 36190-36194 in March 1911.

Not very long after these Ten-wheelers were delivered in 1909 (1572-1578) and 1911 (1579-1580), the OSL installed superheaters.

Retirements began in December 1933 with the 1572, 1574, 1576, 1581-1582. The other pre-World War II retirement was 1583 in April 1940. The others were retired in 1947-1951..


Class T2 / 1742 (Locobase 8346)

Data from UP 11 - 1946 Locomotives & Tenders diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 33712, 33717, 33723 in August 1909; 33741-33743 in September; 36121-36123, 36144-36146, 36160 in February 1911.

At the same time the Oregon Short Line was taking delivery of 8 Ten-wheelers (Locobase 13530), the OWRRN took on 13 more to the same design (Locobase 13531). When it came time to superheat them, however, those locomotives that went through the upgrade sacrificed ten more small tubes in a layout that otherwise was virtually identical to the superheated OSL 4-6-0s (Locobase 8342). Boiler pressure went higher, however.

The first of the class, probably still fitted with a saturated boiler, retired in December 1933. Two others were scrapped in September 1934, four in April 1940. The rest served into the late 1940s, with the 1751 being withdrawn in March 1949.

Specifications by Steve Llanso of Sweat House Media
Class100/9001011021031220
Locobase ID6587 13060 8343 8344 7442
RailroadUnion Pacific (UP)Idaho Northern (UP)Pacific & Idaho Northern (UP)Pacific & Idaho Northern (UP)Union Pacific (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class1223130
Road Numbers100-112/901-907, 914-918101102, 104-105/1584, 86-87103 / 15851220-1249
GaugeStdStdStdStdStd
Number Built1223130
BuilderseveralBurnham, Williams & CoBurnham, Williams & CoBurnham, Williams & CoBurnham, Williams & Co
Year18681907190719071906
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase14.33'14.25'11.33'11'13'
Engine Wheelbase24.82'24.92'22.17'21.25'23.79'
Ratio of driving wheelbase to overall engine wheebase 0.58 0.57 0.51 0.52 0.55
Overall Wheelbase (engine & tender)51.04'51.04'
Axle Loading (Maximum Weight per Axle)26733 lbs35800 lbs
Weight on Drivers79200 lbs88000 lbs94000 lbs81000 lbs103400 lbs
Engine Weight107200 lbs120000 lbs122000 lbs104000 lbs131200 lbs
Tender Light Weight107233 lbs80000 lbs91650 lbs129900 lbs107233 lbs
Total Engine and Tender Weight214433 lbs200000 lbs213650 lbs233900 lbs238433 lbs
Tender Water Capacity4000 gals4000 gals5000 gals6000 gals4000 gals
Tender Fuel Capacity (oil/coal)14 tons tons9 tons3040 gals14 tons
Minimum weight of rail (calculated)44 lb/yard49 lb/yard52 lb/yard45 lb/yard57 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter57"54"57"61"57"
Boiler Pressure160 psi180 psi180 psi180 psi165 psi
Cylinders (dia x stroke)18" x 24"18" x 24"18" x 26"17" x 24"19" x 24"
Tractive Effort18553 lbs22032 lbs22612 lbs17397 lbs21318 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27 3.99 4.16 4.66 4.85
Heating Ability
Firebox Area141.66 sq. ft144 sq. ft152 sq. ft111 sq. ft163.30 sq. ft
Grate Area16.71 sq. ft17.30 sq. ft22.20 sq. ft19.70 sq. ft24.56 sq. ft
Evaporative Heating Surface1495 sq. ft1788 sq. ft1920 sq. ft1371 sq. ft1901 sq. ft
Superheating Surface
Combined Heating Surface1495 sq. ft1788 sq. ft1920 sq. ft1371 sq. ft1901 sq. ft
Evaporative Heating Surface/Cylinder Volume211.50252.95250.73217.45241.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation26743114399635464052
Same as above plus superheater percentage26743114399635464052
Same as above but substitute firebox area for grate area2266625920273601998026945
Power L147385748598555905409
Power MT395.66432.01421.11456.44345.98

Specifications by Steve Llanso of Sweat House Media
Class12421250 - superheated1320 - simpled & superheated1360 - simpled and superheated1400
Locobase ID8341 7444 6603 7434 6593
RailroadUnion Pacific (UP)Union Pacific (UP)Union Pacific (UP)Union Pacific (UP)Union Pacific (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class2840105
Road Numbers1242-12431251,1320-13471360-13691400-1404 / 1220-1223
GaugeStdStdStdStdStd
Number Built5
BuilderUPUPUPUPNew York
Year19201920192519121890
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase13'14.60'14.50'14.50'13'
Engine Wheelbase23.79'24.75'26.75'26.75'23.79'
Ratio of driving wheelbase to overall engine wheebase 0.55 0.59 0.54 0.54 0.55
Overall Wheelbase (engine & tender)54.65'53.99'
Axle Loading (Maximum Weight per Axle)46500 lbs51500 lbs35940 lbs
Weight on Drivers113680 lbs135600 lbs149600 lbs146200 lbs103400 lbs
Engine Weight148500 lbs170000 lbs195000 lbs188800 lbs131200 lbs
Tender Light Weight132200 lbs107433 lbs
Total Engine and Tender Weight280700 lbs238633 lbs
Tender Water Capacity7000 gals7000 gals7000 gals7000 gals4000 gals
Tender Fuel Capacity (oil/coal)12 tons14 tons12 tons12 tons14 tons
Minimum weight of rail (calculated)63 lb/yard75 lb/yard83 lb/yard81 lb/yard57 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter57"61"69"63"62"
Boiler Pressure165 psi200 psi200 psi200 psi165 psi
Cylinders (dia x stroke)19" x 24"20" x 28"20" x 28"20" x 28"19" x 26"
Tractive Effort21318 lbs31213 lbs27594 lbs30222 lbs21232 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.33 4.34 5.42 4.84 4.87
Heating Ability
Firebox Area163 sq. ft203.40 sq. ft183.10 sq. ft159 sq. ft193.40 sq. ft
Grate Area24.56 sq. ft31.58 sq. ft32.38 sq. ft47 sq. ft24.56 sq. ft
Evaporative Heating Surface1424 sq. ft1771 sq. ft2160 sq. ft2106 sq. ft1822 sq. ft
Superheating Surface300 sq. ft388 sq. ft450 sq. ft450 sq. ft
Combined Heating Surface1724 sq. ft2159 sq. ft2610 sq. ft2556 sq. ft1822 sq. ft
Evaporative Heating Surface/Cylinder Volume180.81173.95212.16206.85213.55
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation40526316647694004052
Same as above plus superheater percentage474174537577110924052
Same as above but substitute firebox area for grate area3146748002428453752431911
Power L198301254216097143375573
Power MT571.91611.73711.65648.58356.47

Specifications by Steve Llanso of Sweat House Media
Class1405148 / T-571500152 /T-571703 / 1250
Locobase ID6594 7839 7844 7841 6599
RailroadUnion Pacific, Denver & Gulf (UP)Oregon Railway & Navigation (UP)Union Pacifc (UP)Oregon Railway & Navigation (UP)Union Pacific (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class11411540
Road Numbers1405-1415148-151/170-173/1733, 1735-17361500-1507, 1482-85/140-147, 136-139152-156 / 1737-17411703-1742 / 1250-1289
GaugeStdStdStdStdStd
Number Built11411540
BuilderRhode IslandCookeCookeCookeBrooks
Year18901895189018971898
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase13'13'13'13'14.60'
Engine Wheelbase23.79'23.79'23.83'23.79'24.75'
Ratio of driving wheelbase to overall engine wheebase 0.55 0.55 0.55 0.55 0.59
Overall Wheelbase (engine & tender)52.44'52.42'52.08'
Axle Loading (Maximum Weight per Axle)41400 lbs39000 lbs43600 lbs
Weight on Drivers103400 lbs119400 lbs112950 lbs125600 lbs134000 lbs
Engine Weight131200 lbs144440 lbs139800 lbs154400 lbs168000 lbs
Tender Light Weight107433 lbs110204 lbs103945 lbs105400 lbs106000 lbs
Total Engine and Tender Weight238633 lbs254644 lbs243745 lbs259800 lbs274000 lbs
Tender Water Capacity4000 gals2556 gals5000 gals
Tender Fuel Capacity (oil/coal)14 tons tons12.5 tons tons10.1 tons
Minimum weight of rail (calculated)57 lb/yard66 lb/yard63 lb/yard70 lb/yard74 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter51"57"57"57"57"
Boiler Pressure165 psi180 psi175 psi190 psi200 psi
Cylinders (dia x stroke)19" x 24"20" x 26"19" x 24"20" x 26"20" x 28"
Tractive Effort23826 lbs27916 lbs22610 lbs29467 lbs33404 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34 4.28 5.00 4.26 4.01
Heating Ability
Firebox Area193.41 sq. ft158 sq. ft158.20 sq. ft174.60 sq. ft234.68 sq. ft
Grate Area24.56 sq. ft24.50 sq. ft24.70 sq. ft31 sq. ft31.58 sq. ft
Evaporative Heating Surface1822 sq. ft2164 sq. ft2095 sq. ft2477 sq. ft2677 sq. ft
Superheating Surface
Combined Heating Surface1822 sq. ft2164 sq. ft2095 sq. ft2477 sq. ft2677 sq. ft
Evaporative Heating Surface/Cylinder Volume231.34228.90266.00262.01262.94
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation40524410432358906316
Same as above plus superheater percentage40524410432358906316
Same as above but substitute firebox area for grate area3191328440276853317446936
Power L149675343609263967186
Power MT317.71295.96356.72336.80354.68

Specifications by Steve Llanso of Sweat House Media
Class1800 - 69""1800 / 13001820/13201820/1320 simpled1830/1330 simpled
Locobase ID6601 6600 6602 9673 9674
RailroadUnion Pacific (UP)Union Pacific (UP)Union Pacific (UP)Union Pacific (UP)Union Pacific (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class1717401030
Road Numbers1800 -18161800-18161820-1859/1320-13591820-1829 / 1320-13291830-1859
GaugeStdStdStdStdStd
Number Built1740
BuilderNew YorkNew YorkBurnham, Williams & CoUPUP
Year18901890190019091912
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase13'13'14.50'14.50'14.50'
Engine Wheelbase23.79'23.79'26.75'26.75'26.75'
Ratio of driving wheelbase to overall engine wheebase 0.55 0.55 0.54 0.54 0.54
Overall Wheelbase (engine & tender)52.17'52.20'54'
Axle Loading (Maximum Weight per Axle)35800 lbs35800 lbs51340 lbs50000 lbs50070 lbs
Weight on Drivers103400 lbs103400 lbs142440 lbs142990 lbs142390 lbs
Engine Weight131200 lbs131200 lbs184240 lbs183700 lbs187950 lbs
Tender Light Weight107233 lbs107433 lbs118190 lbs132200 lbs122400 lbs
Total Engine and Tender Weight238433 lbs238633 lbs302430 lbs315900 lbs310350 lbs
Tender Water Capacity4000 gals4000 gals6000 gals7000 gals6000 gals
Tender Fuel Capacity (oil/coal)14 tons14 tons10 tons12 tons12 tons
Minimum weight of rail (calculated)57 lb/yard57 lb/yard79 lb/yard79 lb/yard79 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter69"62"69"69"73"
Boiler Pressure165 psi165 psi200 psi200 psi200 psi
High Pressure Cylinders (dia x stroke)20" x 24"20" x 24"15.5" x 28"20" x 28"20" x 28"
Low Pressure Cylinders (dia x stroke)26" x 28" (2)
Tractive Effort19513 lbs21716 lbs24456 lbs27594 lbs26082 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.30 4.76 5.82 5.18 5.46
Heating Ability
Firebox Area193.64 sq. ft193.64 sq. ft186 sq. ft183.10 sq. ft183.10 sq. ft
Grate Area24.56 sq. ft24.56 sq. ft32.38 sq. ft32.38 sq. ft32.38 sq. ft
Evaporative Heating Surface1959 sq. ft1959 sq. ft3011 sq. ft3008 sq. ft3008 sq. ft
Superheating Surface
Combined Heating Surface1959 sq. ft1959 sq. ft3011 sq. ft3008 sq. ft3008 sq. ft
Evaporative Heating Surface/Cylinder Volume224.48224.48492.39295.45295.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation40524052647664766476
Same as above plus superheater percentage40524052647664766476
Same as above but substitute firebox area for grate area3195131951372003662036620
Power L163655719526888649377
Power MT407.13365.81244.61410.00435.55

Specifications by Steve Llanso of Sweat House Media
Class1860/13603033400720 / T-57 - 263
Locobase ID6604 6578 6577 12526 7842
RailroadUnion Pacific (UP)St.Joseph & Grand Island (UP)St.Joseph & Grand Island (UP)Oregon Railroad & Navigation (UP)Oregon Short Line (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class104368
Road Numbers1860-1869/1360-136930-32, 3433400-405 / 180-185 / 1727-1732720-727 / 1546-1553
GaugeStdStdStdStdStd
Number Built104368
BuilderBurnham, Williams & CoRogersRogersBurnham, Williams & CoCooke
Year19021898189819011899
Valve GearStephensonStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase14.50'11.67'11.67'14.50'13.50'
Engine Wheelbase26.75'22.17'22.17'26.75'23.79'
Ratio of driving wheelbase to overall engine wheebase 0.54 0.53 0.53 0.54 0.57
Overall Wheelbase (engine & tender)55.99'53.25'53.25'
Axle Loading (Maximum Weight per Axle)35940 lbs35940 lbs44000 lbs
Weight on Drivers140070 lbs102000 lbs102000 lbs140000 lbs132000 lbs
Engine Weight185210 lbs126500 lbs126500 lbs181500 lbs156000 lbs
Tender Light Weight122400 lbs101000 lbs101000 lbs120000 lbs
Total Engine and Tender Weight307610 lbs227500 lbs227500 lbs301500 lbs
Tender Water Capacity6000 gals6000 gals6000 gals6000 gals
Tender Fuel Capacity (oil/coal)10 tons10 tons10 tons tons tons
Minimum weight of rail (calculated)78 lb/yard57 lb/yard57 lb/yard78 lb/yard73 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter62"62"62"63"57"
Boiler Pressure200 psi180 psi180 psi200 psi200 psi
High Pressure Cylinders (dia x stroke)15.5" x 28"18" x 26"17" x 26"15.5" x 30"20" x 26"
Low Pressure Cylinders (dia x stroke)26" x 28" (2)26" x 30" (2)
Tractive Effort27217 lbs20788 lbs18543 lbs28698 lbs31018 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.15 4.91 5.50 4.88 4.26
Heating Ability
Firebox Area159 sq. ft130 sq. ft130 sq. ft186 sq. ft205 sq. ft
Grate Area47 sq. ft22 sq. ft22 sq. ft32 sq. ft29 sq. ft
Evaporative Heating Surface2984 sq. ft1414 sq. ft1414 sq. ft3011 sq. ft2260 sq. ft
Superheating Surface
Combined Heating Surface2984 sq. ft1414 sq. ft1414 sq. ft3011 sq. ft2260 sq. ft
Evaporative Heating Surface/Cylinder Volume487.98184.65207.02459.57239.06
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation94003960396064005800
Same as above plus superheater percentage94003960396064005800
Same as above but substitute firebox area for grate area3180023400234003720041000
Power L145395013562144896602
Power MT214.32325.05364.48212.07330.79

Specifications by Steve Llanso of Sweat House Media
Class750919922 / 1701DL 67 / T-68T-57
Locobase ID9516 7441 6598 7262 7840
RailroadOregon Short Line (UP)Union Pacific (UP)Union Pacific (UP)San Pedro, Los Angeles & Salt Lake (UP)Oregon Railroad & Navigation (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class885261
Road Numbers750-757919-1003922, 921 / 1701, 1700200-205/3200-3205 / 1591-15961734
GaugeStdStdStdStdStd
Number Built88526
BuilderCookeTauntonUPRRAlco-BrooksCooke
Year18991868189219011895
Valve GearWalschaertStephensonStephensonStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase13.50'14.33'13'14.50'13'
Engine Wheelbase23.87'24.82'23.79'28.67'23.79'
Ratio of driving wheelbase to overall engine wheebase 0.57 0.58 0.55 0.51 0.55
Overall Wheelbase (engine & tender)52.12'56.83'52.44'
Axle Loading (Maximum Weight per Axle)28733 lbs41400 lbs
Weight on Drivers143000 lbs79200 lbs113200 lbs141250 lbs119400 lbs
Engine Weight171000 lbs107200 lbs137100 lbs176050 lbs144400 lbs
Tender Light Weight98000 lbs107233 lbs107433 lbs111472 lbs
Total Engine and Tender Weight269000 lbs214433 lbs244533 lbs255872 lbs
Tender Water Capacity4500 gals4000 gals4000 gals6200 gals
Tender Fuel Capacity (oil/coal)10 tons14 tons14 tons2350 gals gals
Minimum weight of rail (calculated)79 lb/yard44 lb/yard63 lb/yard78 lb/yard66 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter57"57"51"67"57"
Boiler Pressure200 psi165 psi160 psi175 psi180 psi
Cylinders (dia x stroke)20" x 28"18" x 24"20" x 24"20" x 28"20" x 26"
Tractive Effort33404 lbs19133 lbs25600 lbs24866 lbs27916 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.28 4.14 4.42 5.68 4.28
Heating Ability
Firebox Area185 sq. ft141.66 sq. ft206.80 sq. ft194 sq. ft158.30 sq. ft
Grate Area30 sq. ft16.71 sq. ft25.24 sq. ft35.27 sq. ft24.50 sq. ft
Evaporative Heating Surface2538 sq. ft1495 sq. ft2275 sq. ft2752 sq. ft1819 sq. ft
Superheating Surface
Combined Heating Surface2538 sq. ft1495 sq. ft2275 sq. ft2752 sq. ft1819 sq. ft
Evaporative Heating Surface/Cylinder Volume249.29211.50260.70270.31192.41
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation60002757403861724410
Same as above plus superheater percentage60002757403861724410
Same as above but substitute firebox area for grate area3700023374330883395028494
Power L164634886515771444722
Power MT298.92408.02301.30334.51261.56

Specifications by Steve Llanso of Sweat House Media
ClassT-63T-63 - 1908sT-64 - 1730T-69 / 211T-69 / 810
Locobase ID7843 7845 8345 13531 13530
RailroadOregon Railway & Navigation (UP)Oregon-Washington RR & Navigation (UP)Oregon-Washington RR & Navigation (UP)Oregon-Washington RR & Navigation (UP)Oregon Short Line (UP)
CountryUSAUSAUSAUSAUSA
Whyte4-6-04-6-04-6-04-6-04-6-0
Number in Class662135
Road Numbers45-50/1494-1499/130-135/1709-17141755-17601730-1731211-223 / 1742-1754810-821/1572-1583
GaugeStdStdStdStdStd
Number Built66135
BuilderNew YorkAlco-BrooksOWRRNBaldwinBaldwin
Year18891908192319091909
Valve GearStephensonStephensonvariousStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase14.42'13.83'14.50'14.25'14.25'
Engine Wheelbase25.04'25.83'26.75'26.25'26.25'
Ratio of driving wheelbase to overall engine wheebase 0.58 0.54 0.54 0.54 0.54
Overall Wheelbase (engine & tender)51.67'60.18'55.17'57.29'57.29'
Axle Loading (Maximum Weight per Axle)32000 lbs55500 lbs
Weight on Drivers92350 lbs162000 lbs145310 lbs159000 lbs159000 lbs
Engine Weight125000 lbs208000 lbs190150 lbs203000 lbs203000 lbs
Tender Light Weight97000 lbs135800 lbs129900 lbs159965 lbs
Total Engine and Tender Weight222000 lbs343800 lbs320050 lbs362965 lbs
Tender Water Capacity7000 gals6000 gals9000 gals7000 gals
Tender Fuel Capacity (oil/coal)2770 gals2940 gals10 tons tons
Minimum weight of rail (calculated)51 lb/yard90 lb/yard81 lb/yard88 lb/yard88 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"63"64"69"69"
Boiler Pressure150 psi200 psi200 psi200 psi200 psi
Cylinders (dia x stroke)19" x 24"22" x 28"22" x 26"22" x 28"22" x 28"
Tractive Effort17534 lbs36569 lbs33426 lbs33389 lbs33389 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.27 4.43 4.35 4.76 4.76
Heating Ability
Firebox Area127.40 sq. ft206 sq. ft224 sq. ft178 sq. ft178 sq. ft
Grate Area18.60 sq. ft32.10 sq. ft32 sq. ft49.50 sq. ft49.50 sq. ft
Evaporative Heating Surface1895 sq. ft2421 sq. ft2260 sq. ft3029 sq. ft3029 sq. ft
Superheating Surface464 sq. ft450 sq. ft
Combined Heating Surface1895 sq. ft2885 sq. ft2710 sq. ft3029 sq. ft3029 sq. ft
Evaporative Heating Surface/Cylinder Volume240.61196.52197.57245.88245.88
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation27906420640099009900
Same as above plus superheater percentage27907447748899009900
Same as above but substitute firebox area for grate area1911047792524163560035600
Power L15063130021385673177317
Power MT362.60530.82630.66304.36304.36

Specifications by Steve Llanso of Sweat House Media
ClassT2 / 1572T2 / 1742
Locobase ID8342 8346
RailroadOregon Short Line (UP)Oregon-Washington RR & Navigation (UP)
CountryUSAUSA
Whyte4-6-04-6-0
Number in Class813
Road Numbers810-821/1572-1583211-223/250-262/1742-1754
GaugeStdStd
Number Built813
BuilderOSLNP
Year
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase14.25'14.25'
Engine Wheelbase26.25'26.25'
Ratio of driving wheelbase to overall engine wheebase 0.54 0.54
Overall Wheelbase (engine & tender)59.48'59.48'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers161000 lbs161000 lbs
Engine Weight206000 lbs206000 lbs
Tender Light Weight133050 lbs177530 lbs
Total Engine and Tender Weight339050 lbs383530 lbs
Tender Water Capacity7000 gals9000 gals
Tender Fuel Capacity (oil/coal)14 tons3580 gals
Minimum weight of rail (calculated)89 lb/yard89 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter69"69"
Boiler Pressure190 psi200 psi
Cylinders (dia x stroke)22" x 28"22" x 28"
Tractive Effort31720 lbs33389 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.08 4.82
Heating Ability
Firebox Area213 sq. ft180 sq. ft
Grate Area49.50 sq. ft49.50 sq. ft
Evaporative Heating Surface2465 sq. ft2353 sq. ft
Superheating Surface464 sq. ft464 sq. ft
Combined Heating Surface2929 sq. ft2817 sq. ft
Evaporative Heating Surface/Cylinder Volume200.10191.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation94059900
Same as above plus superheater percentage1091011484
Same as above but substitute firebox area for grate area4694541760
Power L11366813870
Power MT561.48569.78

Photos

Reference


If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.