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Specifications
Specifications
Configuration:;
• Whyte	0-4-0T
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	2 ft 6 in (760 mm)
Length	21 ft 1+1⁄4 in (6,433 mm)
Loco weight	20.25 long tons (20.57 t)

Type and origin
Type and origin
Power type	Steam
Builder	Sentinel Waggon Works
Build date	1927
Total produced	2

GSR 280 Class
GSR 280 Class
Power type
Type and origin
Power type	Steam
Builder	Sentinel Waggon Works
Build date	1927
Total produced	2
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-0T
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	2 ft 6 in (760 mm)
Length	21 ft 1+1⁄4 in (6,433 mm)
Loco weight	20.25 long tons (20.57 t)
Operators
Career
Operators	Great Southern Railways (GSR)
Class	M1 (Inchicore)
Power class	TT
Number in class	2
Locale	Ireland
Withdrawn	1948

The Great Southern Railways (GSR) Class 280 were 0-4-0T locomotives built by Sentinel in 1927.^[1]^{: 257–258}

Design

The design consisted of a vertical boiler inside the cab surrounded by the coal bunker and water tanks and the cylinders mounted vertically between the axles. The design was similar to others Sentinel has provided to other companies.^[1]^{: 257–258} The LNER Class Y3 and GWR No. 12 are examples of a broadly similar design.

Service

The locomotive design had a low cost operating cost and suited to shunting and tight radius curve. Initially allocated to Cork and Tralee by 1932 both had moved to Limerick and worked the market siding. Following the closure of the market siding in 1940 they lay idle until disposal in 1940.^[1]^{: 257–258}