Russian locomotive class O

Specifications
Specifications
Configuration:;
• Whyte	0-8-0
Gauge	1,524 mm (5 ft)
Driver dia.	1,200 mm (47.24 in)
Length	9.672 m (31 ft 8+3⁄4 in), w/o tender
Loco weight	Engine only: 52 to 55 long tons (53 to 56 t; 58 to 62 short tons)
Fuel type	Coal
Firebox:
• Grate area	1.85 m2 (19.9 sq ft)
Boiler pressure	Various,; from: 11 kgf/cm2 (1.08 MPa; 156 psi); to: 15 kgf/cm2 (1.47 MPa; 213 psi)
Cylinders	Two, outside
Cylinder size	Simple:; 500 mm × 650 mm (19.69 in × 25.59 in); Compound:; hp: 500 mm × 650 mm (19.69 in × 25.59 in); lp: 730 mm × 650 mm (28.74 in × 25.59 in)

Type and origin
Type and origin
Power type	Steam
Build date	1890–1915, 1925–1928

O class steam locomotive
O class steam locomotive
	Preserved steam locomotive Ov-841 at the Moscow Railway museum, Rizhsky Rail Terminal
Power type
Type and origin
Power type	Steam
Build date	1890–1915, 1925–1928
Configuration:;
Specifications
Configuration:;
• Whyte	0-8-0
Gauge	1,524 mm (5 ft)
Driver dia.	1,200 mm (47.24 in)
Length	9.672 m (31 ft 8+3⁄4 in), w/o tender
Loco weight	Engine only: 52 to 55 long tons (53 to 56 t; 58 to 62 short tons)
Fuel type	Coal
Firebox:
• Grate area	1.85 m2 (19.9 sq ft)
Boiler pressure	Various,; from: 11 kgf/cm2 (1.08 MPa; 156 psi); to: 15 kgf/cm2 (1.47 MPa; 213 psi)
Cylinders	Two, outside
Cylinder size	Simple:; 500 mm × 650 mm (19.69 in × 25.59 in); Compound:; hp: 500 mm × 650 mm (19.69 in × 25.59 in); lp: 730 mm × 650 mm (28.74 in × 25.59 in)
Class
Career
Class	О

The Russian locomotive class O (from Russian: Основной) was an early type of Russian steam locomotives. 9,129 locomotives were built between 1890 and 1928; hence it was the second most numerous class of locomotive in Russia, after E class,^[1] which was a unique number even on the international level.

Variants

Basic variants were early O^d and O^D (Russian: О^д, O^Д) with Joy valve gear and most numerous later O^V (O^В) with Walschaerts valve gear. Some locomotives were built as two cylinder simple expansion and others as two cylinder compounds.^[2]

Armoured locomotives

During World War I, the Russian Civil War and the Eastern Front of World War II O-class locomotives were widely used as standard armoured locomotives in armoured trains due to rugged construction and low silhouette. Relatively lightweight, these locomotives could carry more armor without overloading the track.

Gallery

A model of a Soviet Armoured train in the Museum of the Moscow Railway at Paveletsky Rail Terminal in Moscow. It composes one Armoured Russian Locomotive Class O.
0-8-0 Armoured locomotive Ov 5067 at the Central Armed Forces Museum, Moscow
Ov 7024 Moskva-Ryazanskaya, Sortirovochnaya depot, Moscow, an 0-8-0
Locomotive OD class the 100th manufactured at Krasnoye Sormovo in 1899
Steam locomotive Ok (Od) on the Estonian Railway circa 1920
Soviet armoured train No.2 "Yuzhnouralskiy Zheleznodorozhnik" (South-Ural Railroad Man), of 38th Armoured Train Unit, Briansk front, abandoned at Marmyzhi 29 June 1942 (OB-3 type)
Od-1080 at the Russian Railway Museum, Saint Petersburg
Ov 6640 at Varshavsky Rail Terminal, St. Petersburg
Od 716 of Chinese Eastern Railway

References

^ Rakov, V.A. (1995). Lokomotivy otechestvennyh zheleznyh dorog 1845-1955 (in Russian). Moscow. pp. 152 and 190. ISBN 5-277-00821-7.{{cite book}}: CS1 maint: location missing publisher (link)
^ Le Fleming, H.M.; Price, J.H. (1960). Russian Steam Locomotives. London: John Marshbank Ltd. pp. 34–35.

External links

[1] Rakov, V.A. (1995). Lokomotivy otechestvennyh zheleznyh dorog 1845-1955 (in Russian). Moscow. pp. 152 and 190. ISBN 5-277-00821-7.{{cite book}}: CS1 maint: location missing publisher (link)

[2] Le Fleming, H.M.; Price, J.H. (1960). Russian Steam Locomotives. London: John Marshbank Ltd. pp. 34–35.

[1]

[2]

Variants

Armoured locomotives

Gallery

See also

References

External links