GER Class B74

GER Class B74
LNER Class Y4

Departmental (Service) locomotive No. 33 at Stratford Locomotive Depot, 18 February 1961

Type and origin
Power type	Steam
Designer	A. J. Hill
Builder	Stratford Works
Build date	1913–1921
Total produced	5

Specifications
Configuration	0-4-0T
UIC class	B n2t
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Driver dia.	3 ft 10 in (1.168 m)
Wheelbase	6 ft 0 in (1.829 m)
Length	24 ft 1 ¹⁄₂ in (7.35 m) over buffers
Axle load	19 long tons 1 cwt (42,700 lb or 19.4 t)
Loco weight	38 long tons 1 cwt (85,200 lb or 38.7 t) full
Fuel type	Coal
Fuel capacity	0 long tons 15 cwt (1,700 lb or 0.8 t)
Water cap	750 imp gal (3,410 l; 901 US gal)
Firebox: • Firegrate area	13.9 sq ft (1.29 m²)
Boiler	LNER Diagram 40
Boiler pressure	180 lbf/in² (1.24 MPa)
Heating surface	980.5 sq ft (91.09 m²)
• Tubes	905.4 sq ft (84.11 m²)
• Firebox	75.1 sq ft (6.98 m²)
Superheater	None
Cylinders	Two, outside
Cylinder size	17 in × 20 in (432 mm × 508 mm)
Valve gear	Walschaerts
Valve type	Slide valves

Performance figures
Tractive effort	19,224 lbf (85.51 kN)

Career
Operators	Great Eastern Railway → London and North Eastern Railway → British Railways
Class	GER: B74 LNER: Y4
Power class	BR: 0F
Nicknames	Pots
Axle load class	LNER/BR: RA 6
Disposition	All scrapped

The GER Class B74 was a class of five 0-4-0T steam locomotives designed by Alfred John Hill for the Great Eastern Railway. They all passed to the London and North Eastern Railway at the 1923 grouping and received the LNER classification Y4.

History

These locomotives had 17-by-20-inch (432 by 508 mm) outside cylinders driving 3-foot-10-inch (1.168 m) wheels. They were built to replace the older, less powerful Class 209 (LNER Class Y5).

Table of orders and numbers^[1]
Year	Order	Manufacturer	Quantity	GER Nos.	LNER Nos.	LNER 1944 Nos.
1913	B74	Stratford Works	1	227	7227	8125
1914	B77	Stratford Works	2	228, 226	7228, 7226,	8126, 8127
1921	A82	Stratford Works	2	229, 210	7229, 7210	8128, 8129

All were still in service at the 1923 grouping; the LNER adding 7000 to the numbers of nearly all the ex-Great Eastern locomotives, including the Class B74 locomotives. There were renumbered 8125–8129 in the 1944 renumbering scheme. At nationalisation in 1948, British Railways added 60000 to their numbers.

In 1952, number 68129 was transferred to the Service (departmental) list and renumbered 33. Withdrawals started in 1955 with 68125, with 68127 and 68128 going in 1956 and 68126 in 1957. The last to be withdrawn was 33, in 1963.

References

Notes

↑ Aldrich 1969, p. 108.

Bibliography

Aldrich, C. Langley (1969). The Locomotives of the Great Eastern Railway 1862–1962 (7th ed.). Wickford, Essex: C. Langley Aldrich. OCLC 30278831.
Baxter, Bertram (2012). Baxter, David; Mitchell, Peter, eds. British Locomotive Catalogue 1825–1923, Volume 6: Great Eastern Railway, North British Railway, Great North of Scotland Railway, Midland & Great Northern Joint Railway, remaining companies in the LNER group. Southampton: Kestrel Railway Books. p. 103. ISBN 978-1-905505-26-5.
Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Hoole, Ken; Manners, F.; Neve, E.; Platt, E. N. T.; Proud, P.; Yeadon, W. B. (June 1977). Fry, E. V., ed. Locomotives of the L.N.E.R., Part 9B: Tank Engines—Classes Q1 to Z5. Kenilworth: RCTS. ISBN 0-901115-41-X.

External links

Wikimedia Commons has media related to GER Class B74 / LNER Class Y4.

A. J. Hill locomotives — Great Eastern Railway Society
The Hill Y4 (GER B74) 0-4-0 Shunters — LNER Encyclopedia

Great Eastern Railway locomotives

R. Sinclair (1862–1866)	Z Y X W V

S. W. Johnson (1866–1876)	No. 1 125 201 202 417 204 109 477 T7 200 134 C8

Wm. Adams (1873–1878)	209 61 K9 230 527

M. Bromley (1878–1881)	E10 245 140 M12 552

T. W. Worsdell (1881–1885)	G14 Y14 G15 M15 G16

J. Holden (1885–1907)	T18 T19 127 E22 R24 D27 T26 N31 C32 P43 S44 S46 F48 C53 A55 D56 S56 G58

S. D. Holden (1907–1912)	Y65 G69 S69 E72

A. J. Hill (1912–1922)	C72 B74 L77 T77 D81 H88

London and North Eastern Railway locomotives

Pre-grouping railway designs:

Great Central:	A5 B1/B18 B2/B19 B3 B4 B5 B6 B7 B8 B9 C4 C5 C13 C14 D5 D6 D7 D8 D9 D10 D11 D12 E2 E3 E8 F1 F2 G3 J8 J9 J10 J11 J12 J13 J58 J59 J60 J61 J62 J63 L1/L3 M1 N4 N5 N6 O4 O5 Q4 S1 X4 Y2

Great Eastern:	B12 D13 D14 D15 D16 E4 F3 F4 F5 F6 F7 G4 J14 J15 J16 J17 J18 J19 J20 J65 J66 J67 J68 J69 J70 N7 Y4 Y5 Y6 Z4/J92

Great North of Scotland:	D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48 G10 J90 J91 Z4 Z5

Great Northern:	A1 C1 C2 C12 D1 D2 D3 D4 E1 G1 G2 J1 J2 J3 J4 J5 J6 J7 J50 J51 J52 J53 J54 J55 J56 J57 K1 K2 K3 N1 N2 O1 O2 Q1 Q2 Q3 R1

North British:	C10 C11 C15 C16 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 D50 D51 E7 G7 G8 G9 J31 J32 J33 J34 J35 J36 J37 J81 J82 J83 J84 J85 J86 J88 N14 N15 Y9 Y10

North Eastern:	A2 A6 A7 B13 B14 B15 B16 C6 C7 C8 D17/1 D17/2 D18 D19 D20 D21 D22 D23 E5 E6 F8 G5 G6 H1 J21 J22 J24 J25 J26 J27 J71 J72 J73 J74 J76 J77 J78 J79 N8 N9 N10 Q5 Q6 Q7 T1 X1 X2 X3 Y7 Y8 EB1 EE1 EF1 ES1

North Eastern (ex Hull & Barnsley)	D24 J23 J28 J75 J80 N11 N12 N13 Q10

LNER designs:

Gresley (1923–1941):	A1 A3 A4 A8 B17 D49 J38 J39 J50 K4 P1 P2 U1 V1 V2 V3 V4 W1 EM1

Thompson (1941–1946):	A1 A2/1 A2/2 A2/3 B1 B2 K1 K5 L1 O1 Q1

Peppercorn (1946–1947):	A1 A2 K1

Other designs:

Proposed designs:

P10 2-8-2T (Nov 1929)
B 4-6-0 (Nov 1936)
? 4-8-2 (1939)
Q 0-8-0 (June 1930)
D 4-4-0 (1943)
? 4-8-4 (Feb 1946)
? 4-8-2 (Feb 1946)
K 2-6-0 (Aug 1947)

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