WLs75

Specifications
Specifications
Configuration:;
• Whyte	0-4-0DM
• UIC	B
Gauge	750 mm (2 ft 5+1⁄2 in); 785 mm (2 ft 6+29⁄32 in); 900 mm (2 ft 11+7⁄16 in)
Driver dia.	670 mm
Minimum curve	25 m
Wheelbase	1550 mm
Length	5110 mm
Width	1550 mm
Height	2650 mm
Adhesive weight	5 t
Loco weight	10 t
Fuel capacity	140 l
Transmission	mechanical

Type and origin
Type and origin
Power type	Diesel mechanical
Builder	ZNTK, Poznań
Build date	1965 - 1975
Total produced	86

WLs75
WLs75
	WLs75-38 in a museal station in Rudy
Power type
Type and origin
Power type	Diesel mechanical
Builder	ZNTK, Poznań
Build date	1965 - 1975
Total produced	86
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0DM
• UIC	B
Gauge	750 mm (2 ft 5+1⁄2 in); 785 mm (2 ft 6+29⁄32 in); 900 mm (2 ft 11+7⁄16 in)
Driver dia.	670 mm
Minimum curve	25 m
Wheelbase	1550 mm
Length	5110 mm
Width	1550 mm
Height	2650 mm
Adhesive weight	5 t
Loco weight	10 t
Fuel capacity	140 l
Transmission	mechanical
Maximum speed
Performance figures
Maximum speed	18.5 km/h
Power output	75 HP
Tractive effort	2400 kg
Operators
Career
Operators	industry

The WLs75 is a small narrow gauge diesel locomotive built in Poland, at the ZNTK in Poznań. It was used mostly on industrial railways.

History

The locomotive's design was started at the CBKPTK (Central Design Bureau of Railway Stock Industry) in Poznań.^[2] The design was finally made in 1961 by the ZNTK Poznań (Railway Stock Repair Works). It was powered by 75 hp diesel engine and had a mechanical transmission, driving two axles by cranks and connecting rods.^[2]

WLs75s were first built in 1965. (WLs stood for Wąskotorowa - narrow-gauge, lokomotywa - locomotive, spalinowa - internal combustion engine). In total, 86 were built with the last shipped in 1975.^[2] They were built for 750 mm (2 ft 5+1⁄2 in) and 785 mm (2 ft 6+29⁄32 in) gauge.^[2] Two locomotives were made for 900 mm (2 ft 11+7⁄16 in) for a park railway in Silesian Park.^[3]

The locomotives were only used in Poland. It was hoped thatthey would be acquired by Polish State Railways (PKP), but the railways found them under-powered. As a result, they were manufactured for the industry, mostly sugar works, smelters and steelworks. Two were used by the Polish Army.^[2] Production was relatively low, because most buyers preferred the cheaper 50 hp 2WLs50 locomotives.^[2]

WLs75-38
WLs75-38

References

^ Pokropiński (2009), p. 208
^ ^a ^b ^c ^d ^e ^f Pokropiński (2009), p. 165-167
^ Jakub Halor. "Kolej parkowa" (in Polish). Retrieved 2016-12-16.

Pokropiński, Bogdan 2009 (2009). Lokomotywy spalinowe produkcji polskiej [Combustion engine locomotives of Polish manufacture] (in Polish). Warsaw: WKiŁ. ISBN 978-83-206-1731-3.{{cite book}}: CS1 maint: numeric names: authors list (link)

[pokr208-1] Pokropiński (2009), p. 208

[pokr165-2] ^ ^a ^b ^c ^d ^e ^f Pokropiński (2009), p. 165-167

[3] Jakub Halor. "Kolej parkowa" (in Polish). Retrieved 2016-12-16.

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