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DONCASTER WORKS

PART 39  -  WORKS ENGINE CLASSIFICATION

Bird came across a locomotive classification which had been hitherto unreported.  It is almost certainly a system devised in the Works to segregate drawings to match new engines they were building.  The construction of a particular class could be spread over a lengthy period, 8 years for example in the case of E3, whilst over the course of any one year several classes could be built.   So a system was devised for locating the necessary drawings.  They had no interest in locomotives purchased from contractors so they were ignored.  So if any other shop wished to take advantage of this classification system they would have to allow for contractors’ drawings.  Details of drawings have been inserted in the table below, to match where possible a new class or sub-class with an appropriate drawing reference.

Works
Refce.

Dvg. Wls.

 
Details


Dimensions

 
Drawing


First engine

A  (0-4-2)

5'-7"


Cylinders
General Plan

Frames
17” X 24”

O5 (1/1867)
M19 (4/12/1866)
Q18 (8/1867)

18 (1/1868)

A2

 

Not known

 

 

74 (12/1874)

A3

 

Trailing wheels

4’-1½” diam.

T58 (5/1878)

103 (9/1882)

A4

 

Auto. Vacuum
brake

 

 

10 (4/1887)

B (2-2-2)

7’-1”

 
Small boiler

Frames
4-0½” diam.

O7 (7/1867)
N27/2 (1868)

No. 4 (3/1868)

C (0-6-0ST)

5’-1”
4’-1”

7 engines
1 engine only

 

 
N38 (undated)

392 (5/1868)
396 (12/1869)

D (0-4-2WT)

5’ 7”

Small boiler

4’-0½” diam.

N28 (11/5/1868)

126 (11/1868)

E (0-6-0)
 

5’-2”


Cylinders

Frames
17” x 24”

O10 (11/1868)

369 (8/1869)

E2 (see note)

 

Cylinders

17½” x 26”

 

372 (4/1874)

E3

 

8½” longer at
   rear

Frames

O36 (3/1886)

791 (4/1886)

E4

 

Larger boiler

4’-5” diam.

N66  (11/1895)

1081 (9/1896)

E5

 

Domed boiler

 

 

315 (8/1898)

E6

 

 

 

 

343 (7/1899)

EE (0-6-0)

5’-8”

 

Frames

O80 (31/1/1908)
N185

1 (8/1908)

EE2

 

 

Frames

O86 (4/1909)

31 (10/1909)

F (2-2-2)

7’-6”

 

Frames

O13 (24/12/1869)

92 (6/1870)

G (4-2-2)

8’-1”


Small boiler
Cylinders
Wheels

Frames
4'- 0½” diam.
16” x 28”
8’-0” diam.

O12 (1/1870)
N34 (9/12/1869)
M24 (14/12/1869)
T39 (8/1/1870)

No. 1 (4/1870)

G2

 

Steel frames
Steel boiler

 
4’-2½” diam.

 
N49 (27/2/1884)

771 (11/1884)

G3

 


Larger firebox

Cylinders
Steel wheels

Frames
6’-10” length
    casing
19½” x 28”
8’-0” diam.

O32 (4/4/1894)
N64 (19/4/1894)

M59 (2/1894)
T77 (8/2/1894)

1003 (11/1894)

H (2-4-0)

6’-6”


Small cylinders

Frames
17” x 24”

O5 (1/1867)
M21 (22/2/1867)

261 (7/1871)

H2

 

Larger cylinders

17½” x 26”

 

86 (5/1874)

H3

 

Large boiler

4’-2½” diam.

N43 (1881)

208 (5/1881)

H4

 

Deeper frames

4’-2½” diam.
    boiler

N48 (30/1/1884)

751 (3/1884)

H5                

 


Cylinders

Frames
17½” x 26”

O34 (11/1/1886)
M50 (25/8/1888)

210 (10/1888)

H6

 

 

Frames

O46 (18/5/1896)
N77

1061 (2/1897)

I (0-6-0)

5’-2”


Large boiler
Large
   cylinders
Wheels

Frames
4’-5” diam.
19” x 28”

5’-0” diam.

O15 (7/1871)
N36 (26/6/1872)
M36 (4/8/1870)

T43 (30/6/1871)

174 (1/1872)

J (0-6-0ST)

4’-0”

Cylinders

16” x 22”

M30 (26/11/1868)

471 (8/1872)

J2

 

Longer frames

 

 

136 (11/1874)

J3

 


Larger
   cylinders

Frames
17½” x 24”

O29 (21/6/1882)

684 (12/1882)

J4

 

Enclosed cab
Steel wheels

 
4’-0” diam.

 
T72 (12/1889)

134 (11/1890)

K (0-4-4BT)

5’-6”

Small boiler

4’-0½” diam.

 

120 (10/1872)

K2

 

Small boiler

4’-0½” diam.

 

621 (1/1878)

L (0-4-2WT)

5’-6”

Renewal

 


Screw rev. gear


K 27 (13/11/1872)

43 (6/1873)

LU (4-4-2)

4-4-2


Boiler

Frames
5’-6” diam.

O65 (4/1902)
N108

251 (12/1902)

LUS

 

LU super.
Boiler

Frames

O91 (7/3/1910)
N201 (5/1910)

1452 (8/1910)

M (0-6-0ST)

4’-8”

 

10’-1” barrel

 

494 (6/1874)

M2

 

Altered frames & bunker

 

 

672 (6/1881)

M3

 

Enclosed cabs

 

 

854 (9/1891)

M4

 


Larger boiler

Frames
10’-6” barrel

O40 (2/1892)
N60 (30/7/1892)

921 (12/1892)

M5

 

Larger
   cylinders

18” x 26”

 

961 (7/1893)

M6

 


Straightback
   boiler
---

(Domed boiler

Frames
4’-0½” diam.

 ---
(Frames)
(4’-5” diam.)

O40 (2/1892)
N60 (30/7/1892)

---
(O51 (12/1896)
(N82 (1897)

111 (8/1897)


---
(1201 (8/1897)

M7

 

-

 

 

1251 (11/1901)

M8

 

-

 

 

1271 (10/1905)

M9

 

Boiler

 

N189 (6/1908)

1281 (12/1908)

MC (0-4-0T)

3’-7”

Motor coach

 

 

2 (10/1905)

MM                 (0-6-2T)

5’-8”

 

Frames

O75 (1/1907)

190 4/1907)

N (0-4-2ST)

5’-1”

Cylinders

16” x 22”

M43 (10/2/1876)

501 (9/1876)

N2

 

Altered cab
   layout

 

- (10/1877)

631 (6/1878)

O (0-4-4T)

5’-0”

 

Frames

O27 (28/12/1880)

658 (9/1881)

P (0-6-0)

4’-8”


Large boiler

Frames
4’-2½” diam.

O30 (21/8/1883)
N47 (18/1/1883

374 (8/1883)

P2

 


Larger boiler

Frames
4’-5” diam.

O45 (11/1894)
N65 (15/1/1895)

1021 (1896)

Q (2-2-2)

7’-6”


Large boiler
Cylinders

Frames
10’-6” long barrel
18½” X 26”

O32 (31/10/1884)
N51/1 (16/10/1884)
M47 (4/2/1884)

238 (6/1885)

Q2

 


Larger boiler

Frames
11’-5” long barrel

O33 (17/8/1885)
N51/2 (1884)

234 (6/1886)

Q3

 

Steel wheels

7’-6” diam.

T75 (4/1891)

871 (1/1892)

R (0-4-4T)

5’-6”


Wrought Iron
     wheels

Frames
5’-6” diam.

O38 (4/1889)
T71 (3/1889)

766 (12/1889)

R2

 

 

Frames

O39 {1/1892)

941 (8/1895)

S (4-4-0)

6’- 7½”


Boiler

Frames
4’-5” diam.

O49 (26/6/1896)
N77 (7/1896)

400 (12/1896)

S2

 

 

 

 

1301 (10/1897)

S3

 

 

 

 

1341 (12/1898)

S4

 

 

 

 

1351 (11/1899)

T (4-4-2T)

5’- 7½”

 

Frames

O53 (3/1897)

1009 (2/1898)

U (4-4-2)

6’- 7½”


Boiler

Frames
4’-8” diam.

O52 (3/1897)
N80 (16/12/1896)

990 (5/1898)

U2

 

 

Frames

O62 (2/1899)

949 (3/1900)

U3

 

 

Frames

O66 (9/1902)

252 (5/1903)

V (4-4-0)

6’- 7½”


Boiler

Frames
4’ 8” diam.

O58 (9/1897)
N89

1321 (6/1898)

V2

 

Boiler

4’ 8” diam.

N89

1326 (10/1898)

V3

 

Boiler

4’ 8” diam.

N89                              

1366 (10/1900)

V4

 

 

 

 

1386 (1/1903)

V5

 

 

 

 

1396 (8/1907)

W (4-2-2)

7’-8”


Boiler

Frames                       
4’-5” diam.

O55 (6/1897)
N81 (7/1897)

266 (10/1898)

W2

 


Boiler

Frames
4’-5” diam.

O61 (6/1898)
N81

267 (5/1900)

X (4-4-2T)

5’- 7½”

 

Frames

O59 (12/1897)

1501 (2/1899)

X2

 

 

 

 

1521 (6/1901)

Y (0-8-0)

4’- 7½”


Saturated
(Superheated)

Frames
4’-8” diam.
(4’-8” diam.)

O64 (3/1900)
N96 (c12/1900)
(N203 (7/1910)

401 (2/1901)

(451 &c)

YT (0-8-2T)

4’ 8”


Large boiler
(Small boiler)

Frames
4’-8” diam.
(4’-2” diam.)

O67 (1/1903)
N96
(N?)

116 (7/1903)

(117 (10/1904)

Z (4-4-2)

6’- 7½”


Cylinders (4)

Frames
15” x 20”

O63 (7/1899)
M97 (6/1903)

271 (7/1902)

ZZ (4-4-2)

6’- 7½”

4-cyl. Comp.
Boiler
Cylinders

Frames
5’- 6” diam.
16” x 26” &
13” x 20”

O70 (6/1904)
N134 (12/1903)
M99 (3/1904)

292 (3/1905)

ZZ2

 

4-cyl. Comp.
Boiler

Frames
5'-6" diam.

O73 (3/7/1906)
N148 (6/1906}

1421 (8/1907)

Note Class E2.  Norman Groves in his "GREAT NORTHERN LOCOMOTIVE HISTORY" placed Stirling 0-6-0 Nos. 171 and 193 with Nos. 372 et seq, and thus the 373 Series became the 171 Series in error.   This error originated in LOCOMOTIVES OF THE LNER, PART 5 (RCTS 1966), under Classes J3 and J4 (page 16). The origin of this mistake stemmed from the entry in the P register of Goods Engines General Plan drawings which read P22 July 1872 6 wheels coupled Goods – 17½ x 26, 171, 193 &c &c.  With the benefit of hindsight it is obvious that the initial entry was made seventeen months before Nos. 171 and 193 appeared (December 1873), and as engines numbers were being selected rather arbitrarily these numbers must have been added in the register after this later date.  In fact the surviving drawing register was compiled around say 1874 from an older register and the engine numbers may have been added during the copying process. 

The person making the copy (back in 1873 or thereabouts) probably knew Nos. 171 and 193 were 0-6-0s that had just been built, without worrying about whether or not they conformed to this particular drawing, and covered his vagueness by adding &c &c.  This confirmed the intention of the drawing as there were currently two significantly different classes of 0-6-0s with 5ft coupled wheels, C and E.  However, the engine class list clearly shows Nos. 372/73 as the first two engines in Class E2 and this version is accepted as being accurate.

Wheel diameters.  There is nothing significant about the variations in wheel diameters. The Drawing Office tended to show 5ft., 5ft-6in, 6ft, etc in the registers ignoring the slight differences over a period of time resulting from different tyre thicknesses, and different dimensions could appear on the actual drawings which were redrawn several times during their lifetime. There could be differences in cylinder diameters, to allow for successive reboring to extend their life.

Boilers noted (for example) N27/1 and N27/2. Two copies of the drawing exist for different classes, with both marked (for example) N27.  Segregated with a “forward slash” in the table above to stress this difference.