Vietnam Railways 141 Class

3 ft 3+3⁄8 in) (Vietnam & Cambodia)
1,067 mm (3 ft 6 in) (Congo)Leading dia.0,900 mm (35.43 in)Driver dia.1,200 mm (47.24 in)Trailing dia.0,900 mm (35.43 in)Length11.450 m (37 ft 6.8 in)
19.010 m (62 ft 4.4 in) (with tender)Width2.700 m (8 ft 10.3 in)Height4.244 m (13 ft 11.1 in)Axle load12.5 t (12.3 long tons; 13.8 short tons)Loco weight50 t (49 long tons; 55 short tons)Tender weight7 t (6.9 long tons; 7.7 short tons)Total weight57 t (56 long tons; 63 short tons)Fuel capacity6 t (5.9 long tons; 6.6 short tons) (coal)Cylinders2Cylinder size450 mm × 610 mm (17.717 in × 24.016 in)
bore x stroke

Performance figures
Maximum speed	67 km/h (42 mph)
Power output	1,100 hp (820 kW) (at wheels)
Tractive effort	104.71 kN (23,540 lbf)

Career
Operators	Vietnam Railways Congo–Ocean Railway Cambodia Railways
Class	141 Vietnam Railways 141 Congo–Ocean Railway 141 Cambodia Railways
Numbers	141-501~141-527(SACM version) 141-A-101~141-A-110(SACM version) 141-121~141-122(Gia Lam version) 141-157~141-216(Tangshan version)
Official name	Mikađô
Nicknames	Tự Lực
Retired	1974-1975 (SCAM version) 1985-1995 (Tangshan & Gia Lam version, except 141-159, 141-160, 141-190)
Preserved	4

The 141-Class Locomotive is a powerful metre gauge steam locomotive in use on Vietnamese Railways. Mechanically they are very similar to Vietnamese 231-500 Class locomotives.^[1][2]

The first variants of the 141-1 class locomotives were produced by the Société Alsacienne de Construction Mecaniques (SACM) in Mulhouse between 1947 and 1950. An order for 27 (an additional order for 17 was reduced to 8 in 1951) locomotives was placed for the French Indochinese colonies before the partition of North and South Vietnam. Both nations would continue to use the French 141-Class into the 1970s.^[2]

In 1965 the North built two domestic locomotives using disassembled French models and spare parts. These were dubbed the 'Tu Luc' or 'self-reliant' class. The engines were built by Gia Lam Ironworks in Hanoi. More locomotives were planned, but the escalation of the Vietnamese War forces production to move to China. The Chinese class of locomotives, the Zi Li^{[Chinese script needed]} (Unaided or self-reliant), was an almost identical copy of the French and Vietnamese locomotives, but were slightly lighter.^[2]

• 141-158: Saigon station
• 141-179: Vinh Railway Station
• 141-182: Di An Works
• 141-026: Da Nang Railway Station