Victorian Railways NA class

Specifications
Specifications
Configuration:;
• Whyte	2-6-2T
• UIC	1′C1′ t
Driver	2nd coupled axle, flangeless
Gauge	2 ft 6 in (762 mm)
Leading dia.	24.25 in (0.62 m)
Driver dia.	36 in (0.91 m)
Trailing dia.	24.25 in (0.62 m)
Minimum curve	3 chains (60.35 m)
Wheelbase:
• Engine	21 ft 10 in (6.65 m)
Length:;
• Over couplers	30 ft 10 in (9.40 m)
Width	8 ft 3 in (2.51 m)
Height	10 ft 10 in (3.30 m)
Frame type	Bar frames
Axle load	1: 9.455 long tons (9.607 t; 10.590 short tons); 2: 9.3 long tons (9.4 t; 10.4 short tons)
Adhesive weight	1: 25.65 long tons (26.06 t; 28.73 short tons); 2: 25.95 long tons (26.37 t; 29.06 short tons)
Empty weight	1: 27.9 long tons (28.3 t; 31.2 short tons); 2: 28.45 long tons (28.91 t; 31.86 short tons)
Loco weight	1: 34.35 long tons (34.90 t; 38.47 short tons); 2: 34.9 long tons (35.5 t; 39.1 short tons)
Fuel type	Coal
Fuel capacity	Initially 1.5 long tons (1,524.07 kg),; later 1.75 long tons (1,778.08 kg) then 2 long tons (2,032.09 kg) with hungry boards.
Water cap.	Initially 600 US gal (2,271.25 L), later 750 US gal (2,839.06 L) or 780 US gal (2,952.62 L)
Firebox:
• Type	Round-top
Boiler:;
• Type	Parallel
Boiler pressure	1 only: 160 psi (1.10 MPa); 2-17: 180 psi (1.24 MPa)
Heating surface:
• Firebox	9.03 ft2 (0.8 m2)
• Total surface	524 ft2 (48.7 m2)
Cylinders	2
Cylinder size	1, 3, 5-17: 13 in × 18 in (330 mm × 457 mm)
High-pressure cylinder	2 & 4: 9+1⁄2 in × 18 in (241 mm × 457 mm)
Low-pressure cylinder	2 & 4: 16 in × 18 in (406 mm × 457 mm)

Type and origin
Type and origin
Power type	Steam
Designer	Baldwin Locomotive Works
Builder	Baldwin Locomotive Works (2); VR Newport Workshops (15);
Model	BLW simple: 10-20¼-D1; BLW compound: 10-13-26¼-D1;
Build date	1898–1915
Total produced	17

Victorian Railways NA class
Victorian Railways NA class
	NA locomotive 12A at Belgrave on the Puffing Billy Railway 2005.
Power type
Type and origin
Power type	Steam
Designer	Baldwin Locomotive Works
Builder	Baldwin Locomotive Works (2); VR Newport Workshops (15);
Model	BLW simple: 10-20¼-D1; BLW compound: 10-13-26¼-D1;
Build date	1898–1915
Total produced	17
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2T
• UIC	1′C1′ t
Driver	2nd coupled axle, flangeless
Gauge	2 ft 6 in (762 mm)
Leading dia.	24.25 in (0.62 m)
Driver dia.	36 in (0.91 m)
Trailing dia.	24.25 in (0.62 m)
Minimum curve	3 chains (60.35 m)
Wheelbase:
• Engine	21 ft 10 in (6.65 m)
Length:;
• Over couplers	30 ft 10 in (9.40 m)
Width	8 ft 3 in (2.51 m)
Height	10 ft 10 in (3.30 m)
Frame type	Bar frames
Axle load	1: 9.455 long tons (9.607 t; 10.590 short tons); 2: 9.3 long tons (9.4 t; 10.4 short tons)
Adhesive weight	1: 25.65 long tons (26.06 t; 28.73 short tons); 2: 25.95 long tons (26.37 t; 29.06 short tons)
Empty weight	1: 27.9 long tons (28.3 t; 31.2 short tons); 2: 28.45 long tons (28.91 t; 31.86 short tons)
Loco weight	1: 34.35 long tons (34.90 t; 38.47 short tons); 2: 34.9 long tons (35.5 t; 39.1 short tons)
Fuel type	Coal
Fuel capacity	Initially 1.5 long tons (1,524.07 kg),; later 1.75 long tons (1,778.08 kg) then 2 long tons (2,032.09 kg) with hungry boards.
Water cap.	Initially 600 US gal (2,271.25 L), later 750 US gal (2,839.06 L) or 780 US gal (2,952.62 L)
Firebox:
• Type	Round-top
Boiler:;
• Type	Parallel
Boiler pressure	1 only: 160 psi (1.10 MPa); 2-17: 180 psi (1.24 MPa)
Heating surface:
• Firebox	9.03 ft2 (0.8 m2)
• Total surface	524 ft2 (48.7 m2)
Cylinders	2
Cylinder size	1, 3, 5-17: 13 in × 18 in (330 mm × 457 mm)
High-pressure cylinder	2 & 4: 9+1⁄2 in × 18 in (241 mm × 457 mm)
Low-pressure cylinder	2 & 4: 16 in × 18 in (406 mm × 457 mm)
Tractive effort
Performance figures
Tractive effort	1: 10,816 lbf (48.1 kN); 2: 12,168 lbf (54.1 kN); 3-17: 12,170 lbf (54.1 kN) at 80% of boiler pressure
Delivered
Career
Delivered	1898
First run	September 1898
Preserved	3A, 6A, 7A, 8A, 12A, 14A
Current owner	Emerald Tourist Railway Board
Disposition	6 preserved, 11 scrapped
	All data above from Speed Limit 20 Plus unless otherwise marked.

The Victorian Railways NA class is a 2-6-2 T built for their four 2 ft 6 in (762 mm) gauge branch lines.