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 13,060 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 Wheelbase (ft)14.3314.2511.331113
Engine Wheelbase (ft)24.8224.9222.1721.2523.79
Ratio of driving wheelbase to overall engine wheebase 0.58 0.57 0.51 0.52 0.55
Overall Wheelbase (engine & tender) (ft)51.0451.04
Axle Loading (Maximum Weight per Axle) (lbs)26,73335,800
Weight on Drivers (lbs)79,20088,00094,00081,000103,400
Engine Weight (lbs)107,200120,000122,000104,000131,200
Tender Loaded Weight (lbs)107,23380,00091,650129,900107,233
Total Engine and Tender Weight (lbs)214,433200,000213,650233,900238,433
Tender Water Capacity (gals)40004000500060004000
Tender Fuel Capacity (oil/coal) (gals/tons)149304014
Minimum weight of rail (calculated) (lb/yd)4449524557
Geometry Relating to Tractive Effort
Driver Diameter (in)5754576157
Boiler Pressure (psi)160180180180165
High Pressure Cylinders (dia x stroke) (in)18" x 24"18" x 24"18" x 26"17" x 24"19" x 24"
Tractive Effort (lbs)18,55322,03222,61217,39721,318
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.27 3.99 4.16 4.66 4.85
Heating Ability
Firebox Area (sq ft)141.66144152111163.30
Grate Area (sq ft)16.7117.3022.2019.7024.56
Evaporative Heating Surface (sq ft)14951788192013711901
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)14951788192013711901
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 area22,66625,92027,36019,98026,945
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 Wheelbase (ft)1314.6014.5014.5013
Engine Wheelbase (ft)23.7924.7526.7526.7523.79
Ratio of driving wheelbase to overall engine wheebase 0.55 0.59 0.54 0.54 0.55
Overall Wheelbase (engine & tender) (ft)54.6553.99
Axle Loading (Maximum Weight per Axle) (lbs)46,50051,50035,940
Weight on Drivers (lbs)113,680135,600149,600146,200103,400
Engine Weight (lbs)148,500170,000195,000188,800131,200
Tender Loaded Weight (lbs)132,200107,433
Total Engine and Tender Weight (lbs)280,700238,633
Tender Water Capacity (gals)70007000700070004000
Tender Fuel Capacity (oil/coal) (gals/tons)1214121214
Minimum weight of rail (calculated) (lb/yd)6375838157
Geometry Relating to Tractive Effort
Driver Diameter (in)5761696362
Boiler Pressure (psi)165200200200165
High Pressure Cylinders (dia x stroke) (in)19" x 24"20" x 28"20" x 28"20" x 28"19" x 26"
Tractive Effort (lbs)21,31831,21327,59430,22221,232
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.33 4.34 5.42 4.84 4.87
Heating Ability
Firebox Area (sq ft)163203.40183.10159193.40
Grate Area (sq ft)24.5631.5832.384724.56
Evaporative Heating Surface (sq ft)14241771216021061822
Superheating Surface (sq ft)300388450450
Combined Heating Surface (sq ft)17242159261025561822
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 percentage47417453757711,0924052
Same as above but substitute firebox area for grate area31,46748,00242,84537,52431,911
Power L1983012,54216,09714,3375573
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 Wheelbase (ft)1313131314.60
Engine Wheelbase (ft)23.7923.7923.8323.7924.75
Ratio of driving wheelbase to overall engine wheebase 0.55 0.55 0.55 0.55 0.59
Overall Wheelbase (engine & tender) (ft)52.4452.4252.08
Axle Loading (Maximum Weight per Axle) (lbs)41,40039,00043,600
Weight on Drivers (lbs)103,400119,400112,950125,600134,000
Engine Weight (lbs)131,200144,440139,800154,400168,000
Tender Loaded Weight (lbs)107,433110,204103,945105,400106,000
Total Engine and Tender Weight (lbs)238,633254,644243,745259,800274,000
Tender Water Capacity (gals)400025565000
Tender Fuel Capacity (oil/coal) (gals/tons)1412.5010.10
Minimum weight of rail (calculated) (lb/yd)5766637074
Geometry Relating to Tractive Effort
Driver Diameter (in)5157575757
Boiler Pressure (psi)165180175190200
High Pressure Cylinders (dia x stroke) (in)19" x 24"20" x 26"19" x 24"20" x 26"20" x 28"
Tractive Effort (lbs)23,82627,91622,61029,46733,404
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34 4.28 5.00 4.26 4.01
Heating Ability
Firebox Area (sq ft)193.41158158.20174.60234.68
Grate Area (sq ft)24.5624.5024.703131.58
Evaporative Heating Surface (sq ft)18222164209524772677
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)18222164209524772677
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 area31,91328,44027,68533,17446,936
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 Wheelbase (ft)131314.5014.5014.50
Engine Wheelbase (ft)23.7923.7926.7526.7526.75
Ratio of driving wheelbase to overall engine wheebase 0.55 0.55 0.54 0.54 0.54
Overall Wheelbase (engine & tender) (ft)52.1752.2054
Axle Loading (Maximum Weight per Axle) (lbs)35,80035,80051,34050,00050,070
Weight on Drivers (lbs)103,400103,400142,440142,990142,390
Engine Weight (lbs)131,200131,200184,240183,700187,950
Tender Loaded Weight (lbs)107,233107,433118,190132,200122,400
Total Engine and Tender Weight (lbs)238,433238,633302,430315,900310,350
Tender Water Capacity (gals)40004000600070006000
Tender Fuel Capacity (oil/coal) (gals/tons)1414101212
Minimum weight of rail (calculated) (lb/yd)5757797979
Geometry Relating to Tractive Effort
Driver Diameter (in)6962696973
Boiler Pressure (psi)165165200200200
High Pressure Cylinders (dia x stroke) (in)20" x 24"20" x 24"15.5" x 28"20" x 28"20" x 28"
Low Pressure Cylinders (dia x stroke) (in)26" x 28"
Tractive Effort (lbs)19,51321,71624,45627,59426,082
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.30 4.76 5.82 5.18 5.46
Heating Ability
Firebox Area (sq ft)193.64193.64186183.10183.10
Grate Area (sq ft)24.5624.5632.3832.3832.38
Evaporative Heating Surface (sq ft)19591959301130083008
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)19591959301130083008
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 area31,95131,95137,20036,62036,620
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 12,526 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 Wheelbase (ft)14.5011.6711.6714.5013.50
Engine Wheelbase (ft)26.7522.1722.1726.7523.79
Ratio of driving wheelbase to overall engine wheebase 0.54 0.53 0.53 0.54 0.57
Overall Wheelbase (engine & tender) (ft)55.9953.2553.25
Axle Loading (Maximum Weight per Axle) (lbs)35,94035,94044,000
Weight on Drivers (lbs)140,070102,000102,000140,000132,000
Engine Weight (lbs)185,210126,500126,500181,500156,000
Tender Loaded Weight (lbs)122,400101,000101,000120,000
Total Engine and Tender Weight (lbs)307,610227,500227,500301,500
Tender Water Capacity (gals)6000600060006000
Tender Fuel Capacity (oil/coal) (gals/tons)101010
Minimum weight of rail (calculated) (lb/yd)7857577873
Geometry Relating to Tractive Effort
Driver Diameter (in)6262626357
Boiler Pressure (psi)200180180200200
High Pressure Cylinders (dia x stroke) (in)15.5" x 28"18" x 26"17" x 26"15.5" x 30"20" x 26"
Low Pressure Cylinders (dia x stroke) (in)26" x 28"26" x 30"
Tractive Effort (lbs)27,21720,78818,54328,69831,018
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.15 4.91 5.50 4.88 4.26
Heating Ability
Firebox Area (sq ft)159130130186205
Grate Area (sq ft)4722223229
Evaporative Heating Surface (sq ft)29841414141430112260
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)29841414141430112260
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 area31,80023,40023,40037,20041,000
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 Wheelbase (ft)13.5014.331314.5013
Engine Wheelbase (ft)23.8724.8223.7928.6723.79
Ratio of driving wheelbase to overall engine wheebase 0.57 0.58 0.55 0.51 0.55
Overall Wheelbase (engine & tender) (ft)52.1256.8352.44
Axle Loading (Maximum Weight per Axle) (lbs)28,73341,400
Weight on Drivers (lbs)143,00079,200113,200141,250119,400
Engine Weight (lbs)171,000107,200137,100176,050144,400
Tender Loaded Weight (lbs)98,000107,233107,433111,472
Total Engine and Tender Weight (lbs)269,000214,433244,533255,872
Tender Water Capacity (gals)4500400040006200
Tender Fuel Capacity (oil/coal) (gals/tons)1014142350
Minimum weight of rail (calculated) (lb/yd)7944637866
Geometry Relating to Tractive Effort
Driver Diameter (in)5757516757
Boiler Pressure (psi)200165160175180
High Pressure Cylinders (dia x stroke) (in)20" x 28"18" x 24"20" x 24"20" x 28"20" x 26"
Tractive Effort (lbs)33,40419,13325,60024,86627,916
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.28 4.14 4.42 5.68 4.28
Heating Ability
Firebox Area (sq ft)185141.66206.80194158.30
Grate Area (sq ft)3016.7125.2435.2724.50
Evaporative Heating Surface (sq ft)25381495227527521819
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)25381495227527521819
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 area37,00023,37433,08833,95028,494
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 13,531 13,530
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 Wheelbase (ft)14.4213.8314.5014.2514.25
Engine Wheelbase (ft)25.0425.8326.7526.2526.25
Ratio of driving wheelbase to overall engine wheebase 0.58 0.54 0.54 0.54 0.54
Overall Wheelbase (engine & tender) (ft)51.6760.1855.1757.2957.29
Axle Loading (Maximum Weight per Axle) (lbs)32,00055,500
Weight on Drivers (lbs)92,350162,000145,310159,000159,000
Engine Weight (lbs)125,000208,000190,150203,000203,000
Tender Loaded Weight (lbs)97,000135,800129,900159,965
Total Engine and Tender Weight (lbs)222,000343,800320,050362,965
Tender Water Capacity (gals)7000600090007000
Tender Fuel Capacity (oil/coal) (gals/tons)2770294010
Minimum weight of rail (calculated) (lb/yd)5190818888
Geometry Relating to Tractive Effort
Driver Diameter (in)6363646969
Boiler Pressure (psi)150200200200200
High Pressure Cylinders (dia x stroke) (in)19" x 24"22" x 28"22" x 26"22" x 28"22" x 28"
Tractive Effort (lbs)17,53436,56933,42633,38933,389
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.27 4.43 4.35 4.76 4.76
Heating Ability
Firebox Area (sq ft)127.40206224178178
Grate Area (sq ft)18.6032.103249.5049.50
Evaporative Heating Surface (sq ft)18952421226030293029
Superheating Surface (sq ft)464450
Combined Heating Surface (sq ft)18952885271030293029
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 area19,11047,79252,41635,60035,600
Power L1506313,00213,85673177317
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 Wheelbase (ft)14.2514.25
Engine Wheelbase (ft)26.2526.25
Ratio of driving wheelbase to overall engine wheebase 0.54 0.54
Overall Wheelbase (engine & tender) (ft)59.4859.48
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)161,000161,000
Engine Weight (lbs)206,000206,000
Tender Loaded Weight (lbs)133,050177,530
Total Engine and Tender Weight (lbs)339,050383,530
Tender Water Capacity (gals)70009000
Tender Fuel Capacity (oil/coal) (gals/tons)143580
Minimum weight of rail (calculated) (lb/yd)8989
Geometry Relating to Tractive Effort
Driver Diameter (in)6969
Boiler Pressure (psi)190200
High Pressure Cylinders (dia x stroke) (in)22" x 28"22" x 28"
Tractive Effort (lbs)31,72033,389
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.08 4.82
Heating Ability
Firebox Area (sq ft)213180
Grate Area (sq ft)49.5049.50
Evaporative Heating Surface (sq ft)24652353
Superheating Surface (sq ft)464464
Combined Heating Surface (sq ft)29292817
Evaporative Heating Surface/Cylinder Volume200.10191.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation94059900
Same as above plus superheater percentage10,91011,484
Same as above but substitute firebox area for grate area46,94541,760
Power L113,66813,870
Power MT561.48569.78

Photos

Reference


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