Nord 4.1201 to 4.1272

Specifications
Configuration:;
• Whyte	2-8-2T
• UIC	1′D1′ h2t
Gauge	1,435 mm (4 ft 8 1⁄2 in)
Driver dia.	1,550 mm (61.02 in)
Loco weight	122,500 kg (270,100 lb; 120.6 long tons)
Fuel type	Coal
Fuel capacity	4,000 kg (8,800 lb; 3.9 long tons)
Water cap	10,000 l (2,200 imp gal; 2,600 US gal)
Firebox:; • Firegrate area	3.08 m2 (33.2 sq ft)
Boiler pressure	Originally: 1.8 MPa (261 lbf/in2); later: 1.6 MPa (232 lbf/in2);
Heating surface	203.83 m2 (2,194.0 sq ft)
Superheater:;
• Heating area	64.25 m2 (691.6 sq ft)
Cylinders	Two, outside
Cylinder size	Originally: 640 mm × 700 mm (25.20 in × 27.56 in); later: 585 mm × 700 mm (23.03 in × 27.56 in);
Valve gear	Cossart rotary cam

Type and origin
Power type	Steam
Designer	Marc de Caso
Builder	CF du Nord, Hellemmes Works (5); SACM (10); ANF (18); Société Franco-Belge (18); Schneider-Creusot (9); Fives-Lille (6); SFCM (6);
Build date	1932–1935
Total produced	72

Nord 4.1201 – 4.1272; SNCF 2-141.TC
	SNCF 2-141.TC.27 at Paris Gare du Nord, late August 1970
Type and origin
Power type	Steam
Designer	Marc de Caso
Builder	CF du Nord, Hellemmes Works (5); SACM (10); ANF (18); Société Franco-Belge (18); Schneider-Creusot (9); Fives-Lille (6); SFCM (6);
Build date	1932–1935
Total produced	72
Specifications
Configuration:;
• Whyte	2-8-2T
• UIC	1′D1′ h2t
Gauge	1,435 mm (4 ft 8 1⁄2 in)
Driver dia.	1,550 mm (61.02 in)
Loco weight	122,500 kg (270,100 lb; 120.6 long tons)
Fuel type	Coal
Fuel capacity	4,000 kg (8,800 lb; 3.9 long tons)
Water cap	10,000 l (2,200 imp gal; 2,600 US gal)
Firebox:; • Firegrate area	3.08 m2 (33.2 sq ft)
Boiler pressure	Originally: 1.8 MPa (261 lbf/in2); later: 1.6 MPa (232 lbf/in2);
Heating surface	203.83 m2 (2,194.0 sq ft)
Superheater:;
• Heating area	64.25 m2 (691.6 sq ft)
Cylinders	Two, outside
Cylinder size	Originally: 640 mm × 700 mm (25.20 in × 27.56 in); later: 585 mm × 700 mm (23.03 in × 27.56 in);
Valve gear	Cossart rotary cam
Performance figures
Power output	Originally: 2,140 PS (1,570 kW; 2,110 hp)
Tractive effort	Originally: 282.9 kN (63,600 lbf); later: 210.4 kN (47,300 lbf);
Career
Operators	Chemin de fer du Nord; → SNCF;
Locale	Northern France
Withdrawn	1959–1970
Disposition	One preserved, remainder scrapped

Nord 4.1201 to 4.1272 was a class of French Mikado tank locomotives built for suburban service on the Chemin de fer du Nord's lines north of Paris.

They were designed by Marc de Caso, an engineer working in the company's engineering design office. They were equipped with the same boiler as the Nord's "Superpacifics" (3.1251 to 3.1290) They also had "Cossart" type rotary cam actuated valve gear.

The series were renumbered 2-141.TC.1 to 2-141.TC.72 by SNCF after its creation in 1938; the class was still in service until 12 December 1970, when the use of steam traction on the Nord commuter network was ended.

Construction history

The 72 locomotives were built from 1932 until 1935 by seven manufacturers, including the railway's own workshops at Hellemmes, Lille

Table of locomotive orders ^[1]
Year	Qty	Manufacturer	Serial No.	Nord No.	SNCF No.
1932–33	5	Hellemmes	—	4.1201 – 4.1205	2-141.TC.1 to 2-141.TC.5
1933–34	10	SACM	7688–7697	4.1206 – 4.1215	2-141.TC.6 to 2-141.TC.15
1934	10	ANF	402–411	4.1216 – 4.1225	2-141.TC.16 to 2-141.TC.25
1933–34	10	SFB	2679–2688	4.1226 – 4.1235	2-141.TC.26 to 2-141.TC.35
1934–35	8	ANF	412–419	4.1236 – 4.1243	2-141.TC.36 to 2-141.TC.43
1934	8	SFB	2689–2696	4.1244 – 4.1251	2-141.TC.44 to 2-141.TC.51
1934	9	Schneider	4638–4646	4.1252 – 4.1260	2-141.TC.52 to 2-141.TC.60
1934	6	Fives-Lille	4849–4854	4.1261 – 4.1266	2-141.TC.61 to 2-141.TC.66
1934–35	6	SFCM	4254–4259	4.1267 – 4.1272	2-141.TC.67 to 2-141.TC.72

From 1936, as an economy measure, the boiler pressure was reduced from 1.8 to 1.6 megapascals (260 to 230 lbf/in²), and the cylinder bore was reduced from 640 to 585 millimetres (25.20 to 23.03 in). This reduced the tractive effort from 266.37 to 197.38 kilonewtons (59,880 to 44,370 lbf).

Service history

In 1935, the 4.1200s essentially provide commuter services at the head of push-pull trains composed of five to nine cars, up to 420 tons gross. They are assigned in part to depots of Joncherolles, Mitry, Beaumont ... They are found between Paris on the one hand and Ermont, Creil and Pontoise on the other. In addition to the commuter traffic, 4.1200's also take charge of the freight service between Persian-Beaumont and Luzarches with reversal at Montsoult.

The beginning of the end began in 1969 and the last two trains to have been powered by 2-141.TC ran on December 12, 1970 with train 1731 between Paris-Nord and Valmondois via Ermont-Eaubonne (with 2-141.TC.64) and train 1748 between Persian-Beaumont and Paris-Nord via Valmondois and Ermont-Eaubonne (with 2-141.TC.54)^[2]

Preservation

141.TC.51 stored at Ascq

One locomotive has been preserved: 4.1251 / 2-141.TC.51 (SFB 2696 of 1934). This locomotive had been exhibited at the Brussels International Exposition, in 1935. It has been preserved by AAATV of Lille, and stored at Ascq.

Models

The 4.1200s / 2-141.TCs have been reproduced in HO scale by:

RMA (French firm), brass injected model, released in 1987, 20 years after being announced
Keyser (English craftsman), as a white metal kit
Metropolitan (or Metrop) (high-end Swiss), brass model
Fulgurex (high-end Swiss), very fine brass model.

References

↑ Davies 1997, pp. 131–133.
↑ Prévot 2013.

Davies, John (January 1997). Chemins de fer du Nord Locomotive List 1842–1938. Sunnybank, Queensland: Dr. John Davies. ISBN 0-646-30938-2.
Prévot, Aurélien (October 2013). "Les 2-141 TC : Portrait du Rail". Ferrovissime. Auray: LR Presse (64).