Class of French 0-8-0 locomotives
Nord 4.001 to 4.075 and 4.636 to 4.990 Type and origin Power type Steam Build date 1866–1891
Specifications Configuration: • Whyte 0-8-0 • UIC D n2 Gauge 1,435 mm (4 ft 8+ 1 ⁄2 in )Driver dia. 1,300 mm (4 ft 3+ 1 ⁄8 in)Wheelbase 4.25 m (13 ft 11+ 1 ⁄4 in)Length 8.115 m (26 ft 7+ 1 ⁄2 in)Adhesive weight 44.2 t (97,444 lb) Loco weight 43.4 t (95,681 lb) Fuel type Coal Firebox: • Type • Grate area 4.801 – 4.950: 2.23 m2 (24.0 sq ft) 4.951 – 4.990: 2.10 m2 (22.6 sq ft) Boiler pressure 8.5–10 kg/cm2 (0.834–0.981 MPa; 121–142 psi) Heating surface 4.801 – 4.950: 125 / 141 m2 (1,350 / 1,520 sq ft) 4.951 – 4.990: 125 / 145 m2 (1,350 / 1,560 sq ft) Cylinders Two, outside Cylinder size 500 mm or 550 mm × 650 mm (19+ 11 ⁄16 in or 21+ 5 ⁄8 in × 25+ 9 ⁄16 in)Valve gear Stephenson
Career Operators Chemins de Fer du Nord Numbers Nord: 4.001 – 4.075, 4.636 – 4.990 Nicknames 180 unités Preserved One: Nord 4.853
Nord 4.001 to 4.075 and 4.636 to 4.990 , also called 180 unités , were 0-8-0 locomotives for freight traffic of the Chemins de Fer du Nord .
Construction history
The locomotives were built in several batches by various manufacturers.
Starting with 1879 a Belpaire firebox was installed in the newly built machines, and beginning with 1890 the locomotives were equipped with a cab.
In 1921 the remaining machines were renumbered as follows:
4.001 – 4.075 became 4.601 – 4.674 (4.005 was written off in 1908)
4.636 – 4.800 became 4.702 – 4.853
4.801 – 4.850 became 4.856 – 4.878
4.881 – 4.919 became 4.881 – 4.930
4.954 – 4.990 became 4.931 – 4.954
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