GER Class S69 information

Specifications
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 3 in (0.991 m)
Driver dia.	6 ft 6 in (1.981 m)
Wheelbase	48 ft 3 in (14.71 m)
Length	57 ft 7 in (17.55 m) over buffers
Axle load	B12:15+13⁄20 t (15,650 kg); B12/3:17 t (17,000 kg)
Adhesive weight	B12/1&2: 43 long tons 8 cwt (97,200 lb or 44.1 t); B12/3: 48 long tons 2 cwt (107,700 lb or 48.9 t)
Loco weight	B12/1&2: 62 long tons 19.5 cwt (141,100 lb or 64 t); B12/3: 69 long tons 5 cwt (155,100 lb or 70.4 t)
Tender weight	38 long tons 6 cwt (85,800 lb or 38.9 t)
Fuel type	Coal
Fuel capacity	4 long tons 0 cwt (9,000 lb or 4.1 t)
Water cap.	3,700 imp gal (16,800 L; 4,440 US gal)
Firebox:
• Grate area	26.5 sq ft (2.46 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface:
• Firebox	154 sq ft (14.3 m2)
• Total surface	1,919 sq ft (178.3 m2)
Cylinders	Two, inside
Cylinder size	20 in × 28 in (510 mm × 710 mm)

Type and origin
Type and origin
Power type	Steam
Designer	S. D. Holden
Builder	Stratford Works (51),; Wm. Beardmore & Co. (20),; Beyer, Peacock & Co. (10)
Serial number	WB 135–154,; BP 6487–6496
Build date	1911–1921 (71) 1928 (10)
Total produced	81

GER Class S69
LNER Class B12
GER Class S69 ; LNER Class B12
	B12/4 4-6-0 No. 61504 at Keith Locomotive Depot 1948
Power type
Type and origin
Power type	Steam
Designer	S. D. Holden
Builder	Stratford Works (51),; Wm. Beardmore & Co. (20),; Beyer, Peacock & Co. (10)
Serial number	WB 135–154,; BP 6487–6496
Build date	1911–1921 (71) 1928 (10)
Total produced	81
Configuration:;
Specifications
Configuration:;
• Whyte	4-6-0
• UIC	2′C h2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 3 in (0.991 m)
Driver dia.	6 ft 6 in (1.981 m)
Wheelbase	48 ft 3 in (14.71 m)
Length	57 ft 7 in (17.55 m) over buffers
Axle load	B12:15+13⁄20 t (15,650 kg); B12/3:17 t (17,000 kg)
Adhesive weight	B12/1&2: 43 long tons 8 cwt (97,200 lb or 44.1 t); B12/3: 48 long tons 2 cwt (107,700 lb or 48.9 t)
Loco weight	B12/1&2: 62 long tons 19.5 cwt (141,100 lb or 64 t); B12/3: 69 long tons 5 cwt (155,100 lb or 70.4 t)
Tender weight	38 long tons 6 cwt (85,800 lb or 38.9 t)
Fuel type	Coal
Fuel capacity	4 long tons 0 cwt (9,000 lb or 4.1 t)
Water cap.	3,700 imp gal (16,800 L; 4,440 US gal)
Firebox:
• Grate area	26.5 sq ft (2.46 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface:
• Firebox	154 sq ft (14.3 m2)
• Total surface	1,919 sq ft (178.3 m2)
Cylinders	Two, inside
Cylinder size	20 in × 28 in (510 mm × 710 mm)
Tractive effort
Performance figures
Tractive effort	21,969 lbf (97.72 kN)
Operators
Career
Operators	Great Eastern Railway; → London and North Eastern Railway; → British Railways;
Class	GER: S69,; LNER: B12
Power class	BR: 4P3F
Number in class	81
Numbers	GER/LNER 1946: 1500-1570, LNER: 8500-8580, BR: 61500-61580
Axle load class	LNER/BR: RA 4 (B12/3), RA 3 (remainder)
Withdrawn	1913 (1), 1945–1961
Disposition	One preserved, remainder scrapped

The Great Eastern Railway (GER) Class S69, also known as 1500 Class, and later classified B12 by the London and North Eastern Railway (LNER) is a class of 4-6-0 steam locomotive designed to haul express passenger trains from London Liverpool Street station along the Great Eastern Main Line.^[1] Originally they were designed by S. D. Holden, but were much rebuilt, resulting in several subclasses.

Seventy-one S69 locomotives were built between 1911 and 1921 and numbered 1500–1570. Fifty-one of these were built at the GER's Stratford Works and the remaining 20 by William Beardmore and Company. A further 10 locomotives were built by Beyer, Peacock and Company for the LNER in 1928 and numbered 8571–8580.^[2] From 1948 the British Railways numbers were 61500–61580 (with gaps).

^ Phillips 1982, p. 3
^ "S69 Class 4-6-0 1911-1921, 1928". Great Eastern Railway Society. Retrieved 16 April 2008.

[1] Phillips 1982, p. 3

[GERS-2] "S69 Class 4-6-0 1911-1921, 1928". Great Eastern Railway Society. Retrieved 16 April 2008.

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