Tramroad de Nazareth 2-8-0 Locomotives in Brazil

Class Francisco Sa (Locobase 13771)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 44, p. 155 and Vol 66, pp. 331+. Works numbers were 35991 in January 1911 and 52628-52629 in December 1919.

In 1913, as the T de N was buying a sister to the 1900 Mogul it already operated (Locobase 12462), it plumped for a somewhat more powerful wood-burning Consolidation. Its chief advantage over the 2-6-0s lay in its 3 1/2-ton (3,175 kg) greater adhesion weight spread over one more axle on the 42 lb/yard (21 kg/metre) rail. Grades on the Nazareth were listed as "2%, 3%, and 3 1/2% all in combination with curves". The curves were shown as having radii of 90, 100, and 120 metres (295, 328, and 394 feet), although how these combined with the grades isn't stated.

The Nazareth bought two more of the same design in 1919. Named Antonio Moniz and Pedreira Franco, respectively, the later engines were identical except for a ton-and-a-quarter decrease in engine weight to 63,500 lb (28,803 kg). As before they had "arsenical" copper fireboxes. Unusually for wood burners, these had straight stacks with copper tops.

The notes in the 1919 specs are typical of tramway operation. The driving springs needed to be of "ample strength to withstand shocks in passing over uneven joints in the rails, the road bed being in poor condition." The locomotives they already had, they stated, were "not of ample strength." Also, the Eames Vacuum Brake didn't release quickly enough and had weak seals that meant that when partly worn, the brakes wouldn't hold the train.