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NCC Class S1
Type and origin
Power type
Steam
Designer
S. Rendall
Builder
NCC, York Road works, Belfast
Build date
1908–1909
Rebuilder
NCC
Rebuild date
1928–1930
Number rebuilt
2
Specifications
Configuration:
• Whyte
2-4-2T
• UIC
1′B1 n2vt
Gauge
3 ft (914 mm)
Leading dia.
2 ft 0 in (0.610 m)
Driver dia.
3 ft 9 in (1.143 m)
Trailing dia.
2 ft 0 in (0.610 m)
Wheelbase
22 ft 3 in (6.78 m)
Length
29 ft 9+7⁄8 in (9.09 m)
Width
7 ft 4 in (2.24 m)
Height
9 ft 8 in (2.95 m)
Axle load
10 long tons 0 cwt (22,400 lb or 10.2 t)
Adhesive weight
20 long tons 0 cwt (44,800 lb or 20.3 t)
Loco weight
33 long tons 0 cwt (73,900 lb or 33.5 t)
Fuel type
Coal
Fuel capacity
1.0 long ton (1.0 t)
Water cap.
570 imperial gallons (2,600 L; 680 US gal)
Boiler pressure
160 psi (1.10 MPa)
Heating surface:
• Firebox
58.2 sq ft (5.41 m2)
• Tubes
614.8 sq ft (57.12 m2)
• Total surface
673 sq ft (62.5 m2)
Cylinders
Two, left: HP; right: LP
High-pressure cylinder
14+3⁄4 in × 20 in (375 mm × 508 mm)
Low-pressure cylinder
21 in × 20 in (533 mm × 508 mm)
Valve gear
Walschaerts
Loco brake
Steam
Train brakes
Automatic vacuum
Performance figures
Tractive effort
13,150 lbf (58.5 kN)
Career
Operators
Northern Counties Committee
→ Ulster Transport Authority
Numbers
101, 102 → 41, 42
Scrapped
February 1954
The Northern Counties Committee (NCC) Class S1 was a class of two-cylinder compound 2-4-2T steam locomotives that was introduced for service on the 3 ft (910 mm) narrow gauge railways of County Antrim in north-east Ireland. The members of the class were rebuilds of the BNCR Class S.
The Northern Counties Committee (NCC) ClassS1 was a class of two-cylinder compound 2-4-2T steam locomotives that was introduced for service on the 3 ft...
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