Est 441 to 485

4 ft 8+1⁄2 in)Driver dia.1,840 mm (6 ft 1⁄2 in) (other sources: 1,820 or 1,850 mm (5 ft 11+5⁄8 in or 6 ft 7⁄8 in))Trailing dia.1,220 mm (4 ft 0 in)Length8.595 m (28 ft 2.4 in)Adhesive weight27.8 t (61,300 lb)Loco weight37.2 or 39.7 t (82,000 or 87,500 lb)Tender weight24.0 or 27.0 t (52,900 or 59,500 lb)Fuel capacity5.0 t (11,000 lb)Water cap.7.0 or 10.0 m³ (1,540 or 2,200 imp gal; 1,850 or 2,640 US gal)Firebox:​ • TypeCrampton • Grate area1.71 m² (18.4 sq ft)Boiler pressure10 kg/cm² (0.981 MPa; 142 psi)Heating surface103.2 m² (1,111 sq ft)CylindersTwo, insideCylinder size430 mm × 610 mm (16+15⁄16 in × 24 in)Valve gearStephenson

Performance figures
Maximum speed	90 km/h (56 mph)
Power output	620 CV (456 kW; 612 hp)
Tractive effort	6 t (13,200 lb)

Career
Operators	Chemins de fer de l'Est SNCF
Power class	Est series 3 (later 4)
Numbers	Est: 441 – 485 SNCF: 021 A 446, 452, 472, 474, 478
Retired	1926–1945

Est 441 to 485 was a class of 45 French 0-4-2 locomotives for mixed service, built in 1885 for the Chemins de fer de l'Est.^[1] They were the final development of the 0-4-2 locomotive in France.^[2]

The locomotives were built by Société Alsacienne de Constructions Mécaniques (SACM) at their works in Graffenstaden and Belfort.^[3]

Year	Est no.	SACM factory	SACM serial nos.	SNCF no.
1885	441–465	Graffenstaden	3536–3560	021 A 446, 452
1885	466–485	Belfort	3756–3775	021 A 472, 474, 478

• Davies, John (July 2001). Chemins de fer de l’Est Locomotive List 1839–1938 (Third ed.). Woodbridge, Queensland: Dr. John Davies. ISBN 0-646-06600-5.
• Gillot, Jean (1976). Les Locomotives a Vapeur de la S.N.C.F. Région Est (in French). Editions Picador.
• Vilain, Lucien-Maurice (1980). L'Évolution des locomotives à vapeur de la compagnie des chemins de fer de l'Est 1853-1938 (in French). éditions Pygmalion. ISBN 2-85704-081-4.

• ETH-Bibliothek Zürich, Bildarchiv. Chemins der fer de l’Est 445, viewer
• ETH-Bibliothek Zürich, Bildarchiv. Armored locomotive Est series 441-485, viewer