INDEX

4-4-2 TANK ENGINES

IVATT

Ivatt issued six Engine Orders for 4-4-2Ts which became Class C2 in the 1900 Engine Classification.

Order
No.

Ordered
Works
List
Engine
numbers

Built

Classes
205 18/1/1897 T 1009/10/13-20 1898-99 C2, C12
212 6/1/1898 X 1501-10 1899 C2, C12
214 13/8/1898 X 1511-20 1899 C2, C12
223 6/4/1900 X2 1521-30 1901 C2, C12
231 18/12/1902 X2 1531-40 1903-04 C2, C12
259 22/11/1906 X2 1541-50 1907 C2, C12

No. 1009 CLASS
WORKS LIST T
IVATT CLASS C2
LNER CLASS C12

5ft-7˝in wheels, cyls 17˝in x 26in, Gresley Dgm 4 boiler, LNER Dgm 11 boiler

Cylinders dwg M69 (2/1897) for 17˝" x 26" Cylinders
Frame details O53 (3/1897, retraced /7/1930)
Frames dwg O59 (12/1897) for EO212
Radial axle boxes dwg O60 (2/1898) for EO 212
General Arrangement dwg Q56 (1898) for Nos. 1009/10/3-20, [1501-20 added]

Nos. 1009/10/13-20 were built 2/1898-2/1899.

Fig. 94
No. 1009

This batch was ordered 18/1/1897, suggesting preparatory work was done in 1896. The trailing carrying wheels were 3ft-8in diameter, and the the axle had limited side play, with outside laminated leaf springs.  The first engine (1009) appeared in February 1898 and was quickly found to be unsatisfactory.  Nine sets of Bottomley's radial axle boxes were ordered for the later engines. So the answer appeared to be a radial “truck”, which followed the lateral movement of the axle boxes, but remained stable in the horizontal position.  Truck was a bit of misnomer, but the expression has stuck.  Almost immediately an amendment was made to the frame drawing O53 (15/2/1898) entitled “Alteration to trailing end of frames 5’-6” ten wheeled side tank engines to suit radial axle box arrangement”.  There is little detail on the drawing, which was presumably intended to be read in conjunction with the full O53 drawing.  The second engine (No. 1010) had already left works, so the the 3rd engine (No. 1013) became the "guinea pig", with the result that the 4th engine (1014) left works first unaltered (3/1898), and the modified 3rd engine (1013) followed (5/1898).  The remaining engines of the batch (1015-20), duly modified, started to appear five months later.  It is not known when the earlier engines (presumably 1009/10/13) were brought into line.  In the new arrangement, inside helical bearing springs were employed, though for the last ten engines (1541 Series), the inside springs were the laminated leaf type.

No. 1501 SERIES
WORKS LIST X
IVATT CLASS C2
LNER CLASS C12

5ft-7˝in wheels, cyls 17˝in x 26in, Gresley Dgm 4 boiler, LNER Dgm 11 boiler

General Plan dwg Q56 (undated) for EO 212.

Nos. 1501-20 were built 2/1899-11/1899.

Fig. 101
No. 1509

No. 1521 SERIES
WORKS LIST X2
IVATT CLASS C2
LNER CLASS C12

5ft-7˝in wheels, cyls 18in x 26in, Gresley Dgm 4 boiler, LNER Dgm 11 boiler

Nos. 1521-30 were built 6/1901-11/1901.

This Series introduced 18in diameter cylinders to the class.  Earlier engines were gradually brought into line.

No. 1531 SERIES
WORKS LIST X2
IVATT CLASS C2
LNER CLASS C12

5ft-7˝in wheels, cyls 18in x 26in, Gresley Dgm 4 boiler, LNER Dgm 11 boiler

General Plan dwg Q80 (5/1910)

Nos. 1531-50 were built 12/1903-9/1907.

These had flared bunkers with rails above them to increase the coal carrying capacity.  Earlier engines were quickly brought into line.

LNER AND AFTERWARDS

LNER Class C12 was intact at Grouping: 60 in service

The engines had 3000 added to their numbers (about 1924).  Nos. 4017, 4512/15/16/22/26/32/33 were withdrawn in 1937, followed by No. 4550 in 1938 and No. 4535 in 1939.  The remainder survived to be renumbered 7350-99 (about 1946).  No. 7396 was withdrawn  (6/1947) leaving forty-nine engines to enter into BR ownership.  The engines (except for Nos. 7351/55/58/59/70/77/78/88/99) afterwards had 60000 added to their numbers.  The last of the class was No. 67397 (GNR 1547) withdrawn in December 1958.

Preamble,  Plant Works,  A 4-2-2,  A 4-6-2,  B 2-2-2C 4-4-2D 4-4-0E 2-4-0F 0-4-2,  F 0-4-2T,
G 0-4-4TH 2-6-0,  J 0-6-0 J 0-6-0ST J 0-6-0TK 0-8-0,  L 0-8-2TMC Motor coachN 0-6-2T,
O 2-8-0