Norfolk & Southern 2-6-0 "Mogul" Locomotives in the USA

Class 10 (Locobase 12045)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 18, p 63. Works number was 12968 in October 1892

Locobase entries 12045-12046 show two Vauclain compound Moguls that apparently were procured by the N & S to assess two combinations of cylinder volume and driver diamater. The 10 had the greater cylinder volume and taller drivers - its tractive effort calculates a bit higher.

In 1899, the N & S rebuilt the 10 as a 19" x 24" simple-expansion engine. Two years later, the railroad again modified the 10, creating a 4-4-0 with 18" x 24" cylinders and 68" drivers. After serving another 8 years, the 10 retired in 1910.

Class 9 (Locobase 12046)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 18, p 63 and Volume 20, p. 104. (Thanks to Samuel Smith for his 15 September 2020 email pointing out a record duplication; Locobase 12188 was deleted as a result.) Works number was 12958 in October 1892 and 14742 in March 1896.

Locobase 12045 shows one of the two Vauclain compound Moguls that apparently were procured by the N&S to assess two combinations of cylinder volume and driver diamater. The 9 had less cylinder volume, but smaller drivers. Surprisingly, perhaps, when the N & S bought a third compound Mogul, they bought a copy of the 9.

Both locomotives were rebuilt as 17" x 24" simple-expansion engines with 62" drivers soon after the turn of the Century. 9 was sold to the John L Roper Lumber Company in 1909. 11 was retired in June 1926.

Class C-1 (Locobase 12475)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 23, p. 207. Works numbers were 18925 in January 1901 and 20147 in February 1902.

This pair of Moguls were lightweight standard-gauge 2-6-0s in most respects. They offered relatively low cylinder volume, adhesion and engine weights, boiler heating surface area, grate area, and firebox heating surface area.

On the other hand, they were paid for, so both ran for over 30 years before being retired in January 1936.

Class C-2 (Locobase 11495)

Data from Baldwin Locomotive Works Specification for Engines, 1903, as digitized by the DeGolyer Library of Southern Methodist University Volume 26, p. 265. Works numbers were 23850, 23923 in March 1904.

This pair of Moguls followed the two 17"-cylindered C-1s from from three years earlier (Locobase 12475) . In addition to more cylinder volume, the class had 34 more tubes (of the same length) in the boiler, and put 15,000 lb (6,804 kg) more on the drivers and 16,000 lb (7,257 kg) on all four axles.

On the other hand, the C-2s still occupied the lowest quarter in most categories of all classes of standard-gauge Moguls from that period.

After a 30-year run, the 16 went to the ferro-knacker in 1934. The 17 followed in December 1936.