Introduction

The technical documentation for this locomotive was produced in 1961 at the Poznań Research Centre for Rail Vehicles, and the production was given over to the Chrzanów

Chrzanów

Chrzanów is a town in south Poland with 39,704 inhabitants . It is situated in the Lesser Poland Voivodeship and is the capital of Chrzanów County.- To 1809:...

 Locomotive Factory (Fablok

Fablok

Fablok is a Polish manufacturer of steam locomotives, based in Chrzanów. Until 1947 the official name was The First Factory of Locomotives in Poland Ltd. , Fablok being a widely used syllabic abbreviation of Fabryka Lokomotyw. It is now named "BUMAR - FABLOK S.A. "...

). The prototype was ready in 1964 and initially was tested in Warsaw

Warsaw

Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

.
In 1967 and later, these locomotives were supplied to Legnica

Legnica

Legnica is a town in south-western Poland, in Silesia, in the central part of Lower Silesia, on the plain of Legnica, riverside: Kaczawa and Czarna Woda. Between 1 June 1975 and 31 December 1998 Legnica was the capital of the Legnica Voivodeship. It is currently the seat of the county...

, Piotrków

Piotrków

Piotrków may refer to the following places in Poland:*Piotrków Trybunalski, a city in Piotrków County, Łódź Voivodeship*Piotrków Kujawski, a city in Gmina Piotrków Kujawski in Radziejów County, Kuyavian-Pomeranian Voivodeship...

, Oleśnica

Olesnica

Oleśnica is a town in the Trzebnickie Hills in southwestern Poland with 36,951 inhabitants . It is situated in Lower Silesian Voivodeship...

, Wrocław, Szczakowa

Szczakowa

Szczakowa is a district of the Polish city of Jaworzno. Located in historical Lesser Poland, it now belongs to the Silesian Voivodeship and is one of the most important rail hubs of the area. In the years 1933-1956, it was a separate town....

, Tarnowskie Góry

Tarnowskie Góry

Tarnowskie Góry is a town in Silesia in southern Poland, near Katowice. Borders on the Upper Silesian Metropolitan Union - metropolis with the population of 2 millions. Located in the Silesian Highlands....

 and Gdańsk

Gdansk

Gdańsk is a Polish city on the Baltic coast, at the centre of the country's fourth-largest metropolitan area.The city lies on the southern edge of Gdańsk Bay , in a conurbation with the city of Gdynia, spa town of Sopot, and suburban communities, which together form a metropolitan area called the...

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Later modifications

In 1972, a new version (6D/M) was developed especially for Moroccan railways

ONCF

ONCF or ONCFM is Morocco's national railway operator. The Office employs around 9,767 employees and has a network of 1,907 km, all standard gauge...

 (ONCFM). 37 were delivered as class DG 200.

Some locomotives were moved into passenger service and reclassified PKP class SP42

PKP class SP42

-History:The SP42 is in fact the same locomotive as SM42, but modified for passenger transport. The modification was carried out by adding a heating system for passenger cars on the locomotive. Withdrawal of this class started in '90s, some of them was rebuilt into SU42 class . SP42 class were...

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Nicknames

This locomotive has also been referred to by the following nicknames:

• Zebra
  Zebra
  Zebras are several species of African equids united by their distinctive black and white stripes. Their stripes come in different patterns unique to each individual. They are generally social animals that live in small harems to large herds...
  
  or Stonka (eng. Colorado beetle
  Colorado potato beetle
  The Colorado potato beetle , also known as the Colorado beetle, the ten-striped spearman, the ten-lined potato beetle or the potato bug, is an important pest of potato crops. It is approximately 10 mm long, with a bright yellow/orange body and five bold brown stripes along the length of each...
  
  ) - from the livery
• Wibrator (eng. Vibrator
  Vibrator (mechanical)
  A vibrator is a mechanical device to generate vibrations. The vibration is often generated by an electric motor with an unbalanced mass on its driveshaft.There are many different types of vibrator...
  
  ) - from the vibrations the engine produced
• Eleska - from the factory number: Ls800
• Fablok - from the producer

Resources

• SM42, SP42 and SU42 – article with photos and technical data
• SM42 picture gallery –