The russian steam locomotive class IS was a Soviet

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 passenger steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 type. The contract design was prepared in 1929 at the Kolomna factory. The IS were manufactured between 1932 and 1942.

Overview

The steam locomotive was a 2-8-4. The locomotive used the cylinders and boilers of the steam FD series locomotives However the IS steam locomotive had a different wheel arrangement.

Specification

• Evaporating surface: 295.2 m²
• Superheating area: 148.4 m²),
• Working pressure: 15 kgf/cm² (1.47 MPa)
• Locomotive weight: 133 tonnes
• Adhesive weight: 88 tonnes
• Speed: 100–115 km/h.

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 the Voroshilovograd

Kolomna

Kolomna is an ancient city and the administrative center of Kolomensky District of Moscow Oblast, Russia, situated at the confluence of the Moskva and Oka Rivers, southeast of Moscow. The area of the city is about . The city was founded in 1177...

 factory. In total, 649 steam locomotives were constructed. Later it was renamed FDP (steam locomotive FD

Steam locomotive FD

The russian locomotive class FD FD from Felix Dzerzhinsky, russian: ФД from Феликс Дзержинский was a soviet russian main freight steam locomotive type. Between 1932 to 1942 years 3213 locomotives were built.- History :...

, passenger modification).

Books

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