Photographed CN 6077 1944 U-1-f Class MLW 4-8-4 Steam Locomotive on static display at the Northern Ontario Railroad Museum Heritage Center in Prescott Park located in Capreol Ontario Canada. UIC classification 2D1 h2Gauge 4 ft 812 in (1. 435 mm)Leading wheel diameter 34 in (0.864 m)Driver diameter 73 in (1.854 m)Trailing wheel diameter 43 in (1.092 m)Wheelbase Coupled: 19 ft 0 in (5.79 m) Loco: 42 ft 2 in (12.85 m) Loco tender: 80 ft 1034 in (24.66 m)Length 90 ft 018 in (27.44 m)Width 10 ft 9 in (3.28 m)Height 15 ft 412 in (4.69 m)Weight on drivers 236. 950 pounds (107.48 tonnes; 105.78 long tons)Locomotive weight 355. 700 pounds (161.3 tonnes; 158.8 long tons)Tender weight 281. 840 pounds (127.84 tonnes; 125.82 long tons)Fuel type Originally coal, later oilTender capacity Coal: 18 tons coal, 11. 700 gal water Oil: 5. 000 gal oil, 11. 000 gal waterBoiler 8 ft 6 in (2.59 m) diameter 42 ft 4 in (12.90 m) lengthBoiler pressure 260 lbfin2 (1.79 Mpa)Firegrate area 70.2 sq ft (6.52 m2)Heating surf ace: Tubes and flues 3. 198 sq ft (297.1 m2) Firebox 386 square feet (35.9 m2) Total 3. 584 sq ft (333.0 m2)Superheater type Schmidt type ESuperheater area 1. 570 sq ft (146 m2)Cylinders Two, outsideCylinder size 24 in 30 in (610 mm 762 mm)Valve gear Walschaerts Tractive effort 52 (52. 315 lbf or 232.7 kN)Factor of adhesion 4.