Russian locomotive class Ye

Specifications
Specifications
Configuration:;
• Whyte	2-10-0
• UIC	1′E h2
Gauge	5 ft (1,524 mm) ; Those remaining in US or going; to China Railway, converted to; 4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	52 in (1,321 mm)
Length	72 ft 9 in (22.17 m)
Adhesive weight	180,200 lb (81,700 kg)
Loco weight	207,700 lb (94,200 kg)
Total weight	342,500 lb (155,400 kg)
Fuel type	Coal
Fuel capacity	40,000 lb (18,100 kg)
Water cap.	7,000 US gal (26,000 L; 5,800 imp gal)
Firebox:
• Grate area	64.7 sq ft (6.01 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface	2,594 sq ft (241.0 m2)
Superheater:;
• Heating area	569 sq ft (52.9 m2)
Cylinders	Two
Cylinder size	25 in × 28 in (635 mm × 711 mm)
Valve gear	Walschaerts

Type and origin
Type and origin
Power type	Steam
Builder	Baldwin Locomotive Works; American Locomotive Company; Canadian Locomotive Company
Model	12-44 F
Build date	1915–1918; 1943–1947
Total produced	3,193+

Russian class Е [Ye]
Russian class Е [Ye]
	Еа-629 (Ел-629) as a monument in Ussuriysk (Primorsky Krai)
Power type
Type and origin
Power type	Steam
Builder	Baldwin Locomotive Works; American Locomotive Company; Canadian Locomotive Company
Model	12-44 F
Build date	1915–1918; 1943–1947
Total produced	3,193+
Configuration:;
Specifications
Configuration:;
• Whyte	2-10-0
• UIC	1′E h2
Gauge	5 ft (1,524 mm) ; Those remaining in US or going; to China Railway, converted to; 4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	52 in (1,321 mm)
Length	72 ft 9 in (22.17 m)
Adhesive weight	180,200 lb (81,700 kg)
Loco weight	207,700 lb (94,200 kg)
Total weight	342,500 lb (155,400 kg)
Fuel type	Coal
Fuel capacity	40,000 lb (18,100 kg)
Water cap.	7,000 US gal (26,000 L; 5,800 imp gal)
Firebox:
• Grate area	64.7 sq ft (6.01 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface	2,594 sq ft (241.0 m2)
Superheater:;
• Heating area	569 sq ft (52.9 m2)
Cylinders	Two
Cylinder size	25 in × 28 in (635 mm × 711 mm)
Valve gear	Walschaerts
Maximum speed
Performance figures
Maximum speed	55 mph (89 km/h)
Tractive effort	51,500 lbf (229.08 kN)
Operators
Career
Operators	Imperial Russian Government; Finnish State Railways; Various American railways.

The Russian locomotive class Ye, and subclasses Ye^a, Ye^k, Ye^l, Ye^f, Ye^m, Ye^mv and Ye^s (Russian: Паровоз Е; Е^а, Е^к, Е^л, Е^ф, Е^м, Е^мв and Е^с) were a series of 2-10-0 locomotives built by American builders for the Russian railways in World War I and again in World War II. They were lightweight engines with relatively low axle loadings.

Due to the Bolshevik revolution in 1917, 200 locomotives were stranded in the United States so these were fitted with wider tires: locomotive driving wheels had steel tires which were heated to expand them, then driven over the wheels so that they shrank into place. By fitting wider tires with a deeper tread width, the effective wheel gauge could be decreased from the Russian standard of 5 ft (1,524 mm) to 4 ft 8+1⁄2 in (1,435 mm) (the US standard) to fit the American gauge, and could then be sent to various railroads. The locomotives were nicknamed "Russian Decapods."

A number of locomotives were acquired by the Finnish railways (class Tr2) and by the China Railway (class DK2)