Pennsylvania Railroad Class N2s

The PRR N2s were a fleet of 130 Heavy 2-10-2 Steam Locomotives built during and after World War I for use on the Pennsylvania Railroad under the design aspects of the United States Railroad Administration.
== History and Design ==
During 1917 as the war raged on in Europe, the United States Railroad Administration controlled over 90% of America's railroads as the Pennsylvania Railroad was one of the many, as the Pennsy had several locomotive classes under construction at the time, the USRA ordered the Pennsy to take some of the Government designed Steam Locomotives of the USRA for modern steam power to fulfil the power shortage of heavier locomotives. This time after the Pennsy selected the famed I-1s which debuted a year before in 1916, the Pennsylvania Railroad decided to stay with experimenting with ten-driver locomotives. After a group of Heavy N1s designed by the Pennsy arrived the next year during 1918, the PRR acquired one hundred and thirty giant Heavy 2-10-2s based on the USRA Heavy Santa Fe Design. When constructed by the American Locomotive Company and the Baldwin Locomotive Works in 1919, these locomotives were too late to help out with the Great War as it ended in November 1918. But the Pennsy kept them as they were designed for very heavy drag services with 63" drivers, large 30" x 32" cylinders, driven with a massive radial-stay boiler capable of 190 Lbs. of PSI. Having a designed maximum speed of 35 miles per hour, they gave an impressive 74,000 Lbs. of tractive effort, although not as much as the giant I-1 class Decapods. All of them were built with center-positioned headlights with bell hanging over the smokebox door, although this look didn't stay for too long as the Pennsy was interested in modifying them after the dissolve of the USRA Control by 1920. 
== Service Lives and Rebuilds to "Pennsy" Practices ==
The N2s along with the slightly larger and older N1s were put to work in hauling Ore from the great lakes areas on the Pennsylvania Railroad along with the major tasks of moving heavy coal trains as they were well-suited to do. After the United States Railroad Administration lost control of the major railroads by 1920, the Pennsy had its power on what to do with the odd N2s as they weren't designed by the Railroad itself. After a few years passed the PRR began rebuilding the units, not only improving their appearance, but improving their boiler capacities. Starting in 1923, the PRR rebuilt the first few and over a couple years converted all of them to N2sa's. When rebuilding the units, the Pennsy removed their center position headlights and moved them higher like all other Pennsy engines. The N2s also gained new number plates in place of where the headlight originally was. The biggest thing changed of these locomotives was they received Superheaters (N2sa) and the original radial-stay boilers were cut and new square-shoulder sections were mounted on top of the boiler making larger heating space converting it to a Belpaire Boiler like most Pennsy Engines. They also received doghouses on their tenders along with some other updated parts. They looked like whole new engines as they looked more like the other Locomotives on home grounds although they were still somewhat noticeable as older USRAs. The New N2sa's were good locomotives to use on their heavy freight assignments all over the Pennsy lines east, although they're boiler pressure or cylinders never changed, they were satisfying for what a load they can move, they also did a good job on pusher service. For being a bigger design in its era, the N2sa's were only limited to 35 mph max as that was the design's only flaw, and when faster locomotives were needed the I-1sa's took over.
== World War II and later Retirement ==
After the attack on Pearl Harbor, the US entered World War II as the Pennsylvania Railroad joined forces with other railroads to help out. The Pennsy N2s were still in decent shape as they were used along with the Earlier N1s in Freight services and by 1942 all of the N2sa's were in full use, the Railroad ordered new powerful locomotives to help out. In 1942-1944 the Pennsy built 125 2-10-4 "Texas" type engines to replace the older slower engines with limited speeds like the N classes. After the faster J1s were in prime wartime freight service, the Ns were placed into secondary roles still in coal services, after World War II ended in 1945, the Ns were considered to be soon replaced as retirements along with scrapping began in 1947 as the Pennsy ordered faster multiple unit diesel sets to replace them. Many lasted through thirty years of age as most were retired in 1950, with the last out of steam by December 1953. The last units were scrapped by 1954 as the Pennsy retired all steam operations in October 1957, none were preserved.
== Stock List ==
Total: ALCO (100 Units) Baldwin (30 Units), All rebuilt by PRR Juniata Shops.
Number(s) 	Builder and Year 	Rebuilt 	Retirement and Scrapping	Notes
7036 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	February 1949 	Had Southern valve gear.
7082 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	November 1949 	
7104 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
7123 	Baldwin Locomotive Works, 7/1919.	1920s to N2sa	June 1949 	Had Southern valve gear.
7126 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	January 1949 	Had Southern valve gear.
7139 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	November 1949 	Had Southern valve gear.
7181 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1953 	Had Southern valve gear.
7190 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	August 1953 	Had Southern valve gear.
7212 	Baldwin Locomotive Works, 8/1919.	1920s to N2sa	August 1953 	Had Southern valve gear.
7263 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1952 	
7265 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
7268 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1950 	
7269 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	May 1949 	
7276 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	February 1949 	Had Southern valve gear,
7277 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	November 1949 	
7281 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	September 1949 	
7282 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1949 	Had Southern valve gear.
7283 	ALCO-Brooks Works, 1919. 	1920s to N2sa	August 1948 	Had Walscherts valve gear.
7284 	ALCO-Brooks Works, 1919. 	1920s to N2sa	May 1952 	Had Walscherts valve gear.
7285 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	
7286 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	September 1949 	
7326 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1953 	
7343 	Baldwin Locomotive Works, 9/1919.	1920s to N2sa	September 1949 	Had Southern valve gear.
7635 	ALCO-Brooks Works, 11/1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
7909 (Was renumbered from #7009 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
7910 (Was renumbered from #7010 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1952 	Had Walscherts valve gear.
7916 (Was renumbered from #7016 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	February 1949 	
7917 (Was renumbered from #7034 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
7918 (Was renumbered from #7044 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	June 1949 	Had Walscherts valve gear.
7921 (Was renumbered from #7079 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	
7925 (Was renumbered from #7081 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1952 	Had Walscherts valve gear.
7927 (Was renumbered from #7088 before it was delivered) 	ALCO-Brooks Works, 3/1919. 	1920s to N2sa	February 1949 	Had Walscherts valve gear.
7930 (Was renumbered from #7098 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	
7937 (Was renumbered from #7099 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1952 	Had Walscherts valve gear.
7939 (Was renumbered from #7103 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	August 1952 	Had Walscherts valve gear.
7960 (Was renumbered from #7557 before it was delivered) 	ALCO-Brooks Works, 3/1919. 	1920s to N2sa	February 1949 	Had Walscherts valve gear.
7961 (Was renumbered from #7558 before it was delivered) 	ALCO-Brooks Works, 3/1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
7962 (Was renumbered from #7559 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear and at some point, had a 6-axle long-haul tender equipped.
8008 	ALCO-Brooks Works, 1919. 	1920s to N2sa	April 1953 	Had Walscherts valve gear.
8039 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	
8044 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	May 1952 	
8070 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
8095 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8098 	ALCO-Brooks Works, 1919. 	1920s to N2sa	May 1952 	Had Walscherts valve gear.
8105 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8110 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown, before 1954. 	Had Walscherts valve gear.
8140 (Was renumbered from #7560 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1952 	Had Walscherts valve gear.
8144 (Was renumbered from #7561 before it was delivered) 	ALCO-Brooks Works, 3/1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8147 (Was renumbered from #7562 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	February 1949 	Had Walscherts valve gear.
8149 (Was renumbered from #7794 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	August 1952 	Had Walscherts valve gear.
8159 	ALCO-Brooks Works, 4/1919. 	1920s to N2sa	January 1948 	Had Walscherts valve gear.
8162 (Was renumbered from #7795 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	August 1952 	Had Walscherts valve gear.
8164 (Was renumbered from #7796 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8184 	Baldwin Locomotive Works, 7/1919.	1920s to N2sa	May 1952 	Had Southern valve gear.
8196 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	September 1949 	Had Southern valve gear.
8206 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8208 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1949 	
8215 	ALCO-Brooks Works, 1919. 	1920s to N2sa	December 1948 	Had Walscherts valve gear.
8223 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1950 	Had Walscherts valve gear.
8227 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	September 1949 	Had Southern valve gear.
8231 (Was renumbered from #7800 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	February 1949 	Had Walscherts valve gear.
8241 	ALCO-Brooks Works, 4/1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8253 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8255 	ALCO-Brooks Works, 1919. 	1920s to N2sa	August 1952 	Had Walscherts valve gear.
8258 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1949 	Had Walscherts valve gear.
8263 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	November 1953 	Had Southern valve gear.
8266 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8268 	ALCO-Brooks Works, 4/1919. 	1920s to N2sa	February 1952 	Had Walscherts valve gear.
8299 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8316 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	October 1949 	Had Southern valve gear.
8337 	Baldwin Locomotive Works, 7/1919.	1920s to N2sa	November 1949 	Had Southern valve gear.
8360 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	March 1953 	Had Southern valve gear.
8371 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	August 1952 	Had Southern valve gear.
8376 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1952 	Had Walscherts valve gear.
8379 	Baldwin Locomotive Works, 7/1919.	1920s to N2sa	March 1952 	Had Southern valve gear.
8389 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1953 	Had Walscherts valve gear.
8393 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1948 	Had Walscherts valve gear.
8408 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8425 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1950 	
8794 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8895 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
8896 	ALCO-Brooks Works, 1919. 	1920s to N2sa	December 1948 	
8897 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1949 	
8901 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
8902 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8903 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
8904 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1950 	Had Walscherts valve gear.
8905 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8906 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
8909 	Baldwin Locomotive Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8912 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
8914 (Ren. #9925 in 1950) 	ALCO-Brooks Works, 5/1919. 	1920s to N2sa	May 1952 	Had Walscherts valve gear.
8915 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
8916 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8917 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8918 	ALCO-Brooks Works, 1919. 	1920s to N2sa	November 1948 	Had Walscherts valve gear.
8919 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1950 	Had Walscherts valve gear.
8920 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
8921 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1950 	
8922 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8928 	ALCO-Brooks Works, 1919. 	1920s to N2sa	October 1949 	Had Walscherts valve gear.
8929 (Ren. #9931 by 1951) 	ALCO-Brooks Works, 5/1919. 	1920s to N2sa	August 1952 	Had Walscherts valve gear.
8940 (Was renumbered from USRA #20001 in 1921) 	ALCO-Brooks Works, 6/1919. 	1920s to N2sa	March 1952 	Had Walscherts valve gear.
8941 (Was renumbered from USRA #20002 in 1921) 	ALCO-Brooks Works, 6/1919. 	1920s to N2sa	January 1949 	Had Walscherts valve gear.
8942 (Was renumbered from USRA #20003 in 1921) 	ALCO-Brooks Works, 6/1919. 	1920s to N2sa	February 1949 	Had Walscherts valve gear.
8943 (Was renumbered from USRA #20004 in 1921) 	ALCO-Brooks Works, 6/1919. 	1920s to N2sa	April 1953 	Had Walscherts valve gear.
8944 (Was renumbered from USRA #20005 in 1921) 	ALCO-Brooks Works, 6/1919. 	1920s to N2sa	February 1949 	
8944 (Was renumbered from #7107 before it was delivered) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	
8945 (Was renumbered from USRA #20039 in 1921) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	March 1949 	
8946 (Was renumbered from USRA #20040 in 1921) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	April 1949 	
8947 (Was renumbered from USRA #20041 in 1921, renumbered to #9934 in 1951)	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Southern valve gear, scrapped by 1954.
8948 (Was renumbered from USRA #20042 in 1921, renumbered to #9936 in 1951)	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
8949 (Was renumbered from USRA #20043 in 1921, renumbered to #9938 in 1951)	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Southern valve gear, scrapped by 1954.
9731 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
9733 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear.
9737 	ALCO-Brooks Works, 1919. 	1920s to N2sa	September 1949 	
9738 	ALCO-Brooks Works, 3/1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
9739 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9838 	ALCO-Brooks Works, 5/1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9839 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9845 (Ren. #8016 in 1951) 	ALCO-Brooks Works, 1919. 	1920s to N2sa	July 1953 	Had Walscherts valve gear.
9849 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9851 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9853 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
9854 	ALCO-Brooks Works, 1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
9855 	ALCO-Brooks Works, 1919. 	1920s to N2sa	October 1949 	
9856 	ALCO-Brooks Works, 5/1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
9857 	ALCO-Brooks Works, 5/1919. 	1920s to N2sa	January 1950 	Had Walscherts valve gear.
9858 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Scrapped by 1954.
9859 	ALCO-Brooks Works, 1919. 	1920s to N2sa	Unknown 	Had Walscherts valve gear, scrapped by 1954.
== Trivia ==
* The N2 series was the only Steam Locomotive design on the Pennsylvania Railroad to feature Southern valve gear, although some were built with Walscherts.
* Despite being almost as heavy as the I-1sa class Decapods, the N2s were less powerful as they weren't popular with PRR crews.
* The N2s were one of few USRA designed Steam locomotives accepted by the PRR during the great War.
* Although the USRA Heavy Santa Fe type was selected by only a few railroads like the ERIE, the Pennsy had the most numerous number of the type than any other railroad.
Category:United States Railroad Administration
Category:2-10-2 steam locomotives
Category:2-10-2 locomotives
Category:Built in 1919
Category:Baldwin locomotives
Category:ALCO locomotives
Category:ALCO-Brooks locomotives
Category:USRA Heavy Santa Fe
Category:Pennsylvania locomotives
Category:Steam locomotives
Category:American steam locomotives
Category:4 foot 8 1⁄2 inch gauge
Category:Standard gauge locomotives of the United States
Category:Scrapped steam locomotives
Category:Scrapped locomotives
Category:Ten-coupled locomotives
Category:Freight locomotives
Category:Tender locomotives
Category:Tender Engines