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The reference for locomotives and railcars

Unidos de Yucatan No. 62 and 75 to 79

Mexico 1903 6 produced
No. 260, formerly 76, in February 1965 in Sotuta Robert W. Richardson

In 1903, Baldwin built a light three-foot gauge 2-6-0 for the Merida a Peto in Mexico that was numbered 12 and named “Catalina A de Casasus”. It carried the works number 21935 and belonged to the Baldwin type 8-20 D 115. The wood burner weighed 52,000 pounds, of which 43,000 rested on the drivers. At 45,000 pounds, the tender was not much lighter than the locomotive. The railroad became part of the Unidos de Yucatan in 1908 and the locomotive was renumbered to 62.

Five more locomotives were built in 1928 which were nearly identical, but burned oil and were 5,000 pounds heavier. They carried the numbers 75 to 79. 62 was retired in 1948 and 75 and 79 followed in 1962. The other three were sold to the Unidos de Sureste. No. 260, the earlier No. 76, was sold to Disney in 1969 for service at Disney World in Orlando. For this it was rebuilt in 1971, renamed to “Lilly Belle” and received the number 2.

As “Lilly Belle” in Disney World Orlando Facebook/Go To WDW

Technical data

General

Property 62 57-79
Built 1903 1928
Manufacturers Baldwin
Wheel arrangement 2-6-0 (Mogul)
Gauge 914 mm (Three feet)

Dimensions and weights

Property 62 57-79
Wheelbase 5.46 m
Service mass 23.6 t 25.9 t
Adhesion mass 19.5 t 21.3 t
Total mass 44 t 46.3 t
Rigid wheelbase 3.66 m
Water capacity 8,328 l 11,356 l
Fuel capacity 5,981 l (oil)

Boiler

Property 62 57-79
Grate area 0.827 m²
Firebox surface 5.574 m²
Tube heating surface 45.058 m²
Evaporative heating surface 50.632 m²
Total heating surface 50.6 m²

Power plant

Property 62 57-79
Driver diameter 1,016 mm
Boiler pressure 11 bar
Expansion type simple expansion
Cylinders two, 330 x 457 mm

Power

Property 62 57-79
Power source steam
Estimated power 164 kW (223 PS) 224 kW (305 PS)
Starting effort 46.0 kN

Calculated values

Property 62 57-79
Factor of adhesion 1 : 4.16 1 : 4.55
Optimal speed 23 km/h 29 km/h
Power-to-weight ratio 7.0 kW/t 8.7 kW/t
Heating Surface Equivalent 78.5 m²
Cylinder volume/HSE 1 : 997.47
Adhesive weight/Total 1 : 1.21
Tractive force/Heating surface 1 : 18.98
Grate area/Heating surface 1 : 61.22
Firebox/Tube surface 1 : 8.08
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