NER Class M1

NER Class M1/M, Q and Q1
LNER Class D17/1, D17/2 and D18

Preserved M1 No. 1621 in the National Railway Museum, York, September 2010

Type and origin
Power type	Steam
Designer	Wilson Worsdell
Builder	NER Gateshead
Build date	1892-1894 (Class M1) 1896-1897 (Class Q) 1896 (Class Q1)
Total produced	20 (Class M1) 30 (Class Q) 2 (Class Q1)

Specifications
Configuration	4-4-0
UIC class	2′B n2
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Leading dia.	3 ft 7 ¹⁄₄ in (1,099 mm)
Driver dia.	7 ft 1 ¹⁄₄ in (2,165 mm)
Wheelbase	23 ft 6 in (7.16 m) Class M1/Q engine 23 ft 9 in (7.24 m) Class Q1 engine 12 ft 8 in (3.86 m) tender 45 ft 8 ¹⁄₄ in (13.926 m) Class M1/Q total 46 ft 2 ³⁄₄ in (14.091 m) Class Q1 total
Axle load	M1: 18.6 long tons (18.9 t) Q: 18.8 long tons (19.1 t) Q1: 19.2 long tons (19.5 t)
Loco weight	52.5 long tons (53.3 t) (Class M1) 50.3 long tons (51.1 t) (Class Q) 53.5 long tons (54.4 t) (Class Q1)
Tender weight	41.2 long tons (41.9 t)
Total weight	93.7 long tons (95.2 t) (Class M1) 91.5 long tons (93.0 t) (Class Q) 94.7 long tons (96.2 t) (Class Q1)
Fuel type	Coal
Water cap	4,125 imp gal (18,750 l; 4,954 US gal)
Firebox: • Firegrate area	19.8 sq ft (1.84 m²)
Boiler	4 ft 4 in (1.32 m) diameter
Boiler pressure	160 psi (1.10 MPa)
Heating surface	1,097 sq ft (101.9 m²)
• Tubes	479 sq ft (44.5 m²)
• Flues	291 sq ft (27.0 m²)
• Firebox	123 sq ft (11.4 m²)
Superheater:
• Heating area	204 sq ft (19.0 m²)
Cylinders	Two, inside
Cylinder size	19 in × 26 in (483 mm × 660 mm) 20 in × 26 in (508 mm × 660 mm) (No. 1870)
Valve gear	Stephenson

Performance figures
Tractive effort	14,974 lbf (66.61 kN) (Class M1/Q) 13,990 lbf (62.23 kN) (No. 1869) 15,500 lbf (69 kN) (No. 1870)

Career
Operators	North Eastern Railway, London & North Eastern Railway, British Rail
Withdrawn	1931–1945 (Class M1) 1931–1948 (Class Q) 1930 (Class Q1)
Disposition	One M1 preserved (No. 1621); remainder M1, Q & Q1 scrapped

The North Eastern Railway Class M1 (LNER Class D17/1) is a class of 4-4-0 steam locomotive, designed by Wilson Worsdell. 20 initial engines were built, then 30 further units were built, designated Class Q (LNER Class D17/2).

Classification

Classification is complex. The NER initially classified these locomotives "M1" while a variant (with compound expansion) was classified "M". The compound was later re-classified "3CC" and the "M1" was re-classified "M".

Under LNER ownership the "M" (formerly "M1") became LNER Class D17/1 and the "3CC" (formerly "M") became LNER Class D19.

This table summarises LNER classes D17, D18 and D19, which were all very similar:

Original NER class	New NER class	LNER Class	Cylinders	Driving wheels
M1	M	D17/1	(2) 19″ × 26″	7′ 1¼″
Q	-	D17/2	(2) 19½″ × 26″	7′ 1¼″
Q1	-	D18	(2) 19½″ × 26″	7′ 7¼″
M	3CC	D19	HP (1) 19″ × 26″ LP (2) 20″ × 24″	7′ 1¼″

HP = high-pressure cylinder, LP = low-pressure cylinders

Accidents and incidents

On 4 October 1894, locomotive No. 1622 was one of two locomotives hauling a sleeping car train which overran signals and collided with a freight train that was being shunted at Castle Hills, Yorkshire. One person was killed.^[1]

Main article: Hull Paragon rail accident

On 14 February 1927, locomotive No. 1628 was hauling a passenger train that was in a head-on collision with another at Hull Paragon station, Yorkshire due to a signalman's error. Twelve people were killed and 24 were injured.^[2]

Withdrawal

The last two D17/1s were withdrawn in 1945. Number 1629 was scrapped but number 1621 was saved for preservation.

No D17/1s passed into British Railways ownership. Two D17/2s did (BR numbers 62111 and 62112) but they were withdrawn in February 1948.

Preservation

D17/1 number 1621 is preserved at the National Railway Museum.

References

↑ Hoole, Ken (1983). Trains in Trouble: Vol. 4. Truro: Atlantic Books. p. 19. ISBN 0-906899-07-9.
↑ Gerard, Malcolm; Hamilton, J. A. B. (1981) [1967]. Trains to Nowhere. London: Georg Allen & Unwin. pp. 37–40. ISBN 0-04-385084-7.

External links

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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