Soviet locomotive class IS

Specifications
Specifications
Configuration:;
• Whyte	2-8-4
Gauge	1,524 mm (5 ft)
Leading dia.	1,050 mm (41.34 in)
Driver dia.	1,850 mm (72.83 in)
Trailing dia.	1,050 mm (41.34 in)
Adhesive weight	88 tonnes (87 long tons; 97 short tons)
Loco weight	133 tonnes (131 long tons; 147 short tons)
Firebox:
• Grate area	7.04 m2 (75.8 sq ft)
Boiler pressure	15 kgf/cm2 (1.47 MPa; 213 psi)
Heating surface	295.2 m2 (3,178 sq ft)
Superheater:;
• Heating area	148.4 m2 (1,597 sq ft)
Cylinders	Two, outside
Cylinder size	670 mm × 770 mm (26.38 in × 30.31 in)

Type and origin
Type and origin
Power type	Steam
Builder	October Revolution Locomotive Factory, Voroshilovgrad (Luhansk)
Build date	1932–1942
Total produced	649

Soviet locomotive class ИС
Soviet locomotive class ИС
	Steam locomotive IS20-16 with streamline casing at the locomotive factory in Voroshilovgrad in 1937. It was the Soviet steam locomotive-champion with maximum speed of 155 km/h (96 mph).
Power type
Type and origin
Power type	Steam
Builder	October Revolution Locomotive Factory, Voroshilovgrad (Luhansk)
Build date	1932–1942
Total produced	649
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-4
Gauge	1,524 mm (5 ft)
Leading dia.	1,050 mm (41.34 in)
Driver dia.	1,850 mm (72.83 in)
Trailing dia.	1,050 mm (41.34 in)
Adhesive weight	88 tonnes (87 long tons; 97 short tons)
Loco weight	133 tonnes (131 long tons; 147 short tons)
Firebox:
• Grate area	7.04 m2 (75.8 sq ft)
Boiler pressure	15 kgf/cm2 (1.47 MPa; 213 psi)
Heating surface	295.2 m2 (3,178 sq ft)
Superheater:;
• Heating area	148.4 m2 (1,597 sq ft)
Cylinders	Two, outside
Cylinder size	670 mm × 770 mm (26.38 in × 30.31 in)
Maximum speed
Performance figures
Maximum speed	115 km/h (71 mph)
Tractive effort	233.5 kN (52,490 lbf)
Numbers
Career
Numbers	IS20-1
Retired	1965–1987
Scrapped	1975–1996

The Soviet locomotive class IS (

Great Patriotic War against Nazi Germany

.

Overview

The locomotive used the same cylinders and boilers as the

FD series locomotives. However the IS steam locomotive had a 2-8-4

wheel arrangement.

Construction

The first steam locomotive was released from the Kolomna factory on October 4, 1932. In April–December a steam locomotive was tested on the October, Southern, and Ekaterinenskaya railways.

In 1936, production began at

FD

, passenger modification).

Use

These locomotives were used until 1972.

Gallery

IS20-1 in 1932
IS20-1 in 1932
IS20-08 in 1936
Russian locomotive class IS exhibited in Paris in 1937
The only preserved IS plinthed IS20-578 in Kyiv

Books

Главное управление локомотивного хозяйства МПС (1956). Справочник по локомотивам железных дорог СССР (in Russian). Трансжелдориздат.
Сыромятникова, С.П., ed. (1937). Курс паровозов. Устройство и работа паровозов и техника их ремонта (in Russian). Трансжелдориздат (State Publishing House).

References

External links

The Moscow Railway Museum at Rizhsky Rail Terminal