Monongahela 2-8-0 "Consolidation" Locomotives in the USA

Class H5 (Locobase 7062)

Data from MNGHLA 12 - 1949 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Works numbers were 46769-46774, 47028-47029 in November 1909, 47983-47988 in July 1910, 51591-51596 in July 1912, and 54292-54297 in December 1913.

The design fit the typical demands of low-drivered mineral and coal haulers in Pennsylvania and Maryland, whether saturated (as in this class) or superheated (e.g.., the H5sa that came along a few years later).

One diagram notes that those H5s fitted with thermic syphons add 50 sq ft (4.65 sq m) to the firebox heating surface. That is the version shown in the specs, which also show twelve fewer boiler tubes as a result.

Engine 119 was fitted with a superheater that contributed 570 sq ft (52.95 sq m) to the total heating surface of 2 ,905 sq ft (269.9 sq m). To house the 30 5 3/8" superheater flues, the boiler lost 167 2" tubes. See H5sa (Locobase 7063) for the as-built superheated version of this class.

One early sale saw the 125 going to locomotive rebuilderr/reseller Birmingham Rail & Locomotive in 1936; BR&L placed the engine in May with the Oneida & Western as their 26.

After 30 years of H-5 service, the Monongahela sold the 116 in August 1944, the 131 in September 1944, and 30 followed in April 1945 to the Morristown & Erie as their 10-12; . The M&E sold the trio for scrap in October 1955.

Class H5sa (Locobase 7063)

Data from MNGHLA 12 - 1949 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Rail Data Exchange. Twelve of these superheated Consolidations came from the Alco's Pittsburgh Locomotive Works (builder's numbers 55834-55839 and 58658-58663); Porter supplied the 13th (its number 6848).

The Monongahela sold the 142 in 1944 to the Pittsburgh, Chartiers & Youghiogheny as their 16.