LB&SCR I1 class
LB&SCR I1 class |
I1 class with modified chimney
|
Type and origin |
Power type |
Steam |
Designer |
D. E. Marsh |
Builder |
Brighton Works |
Build date |
1906–1907 |
Total produced |
20 |
Rebuild date |
1925–1932 |
|
Specifications |
Configuration:
|
|
• Whyte
|
4-4-2T |
Gauge |
4 ft 8 1⁄2 in (1,435 mm) standard gauge
|
Driver dia. |
5 ft 6 in (1.676 m) |
Loco weight |
66 long tons 10 cwt (149,000 lb or 67.6 t) (74.6 short tons) |
Fuel type |
Coal |
Water cap |
1,839 or 1,924 imp gal (8,360 or 8,750 l; 2,209 or 2,311 US gal) |
Boiler pressure |
170 psi (1.17 MPa) |
Cylinders |
Two, inside |
Cylinder size |
17.5 in × 26 in (444 mm × 660 mm) |
|
|
Career |
Class |
- As built: I1
- Rebuilt 1925–32: I1x
|
Power class |
BR: 2P (I1x only) |
Withdrawn |
1944–1951 |
Disposition |
All scrapped
|
|
Type and origin |
Power type |
Steam |
Designer |
D. E. Marsh |
Builder |
Brighton Works |
Build date |
1906–1907 |
Total produced |
20 |
Rebuild date |
1925–1932 |
Specifications |
Configuration:
|
|
• Whyte
|
4-4-2T |
Gauge |
4 ft 8 1⁄2 in (1,435 mm) standard gauge
|
Driver dia. |
5 ft 6 in (1.676 m) |
Loco weight |
66 long tons 10 cwt (149,000 lb or 67.6 t) (74.6 short tons) |
Fuel type |
Coal |
Water cap |
1,839 or 1,924 imp gal (8,360 or 8,750 l; 2,209 or 2,311 US gal) |
Boiler pressure |
170 psi (1.17 MPa) |
Cylinders |
Two, inside |
Cylinder size |
17.5 in × 26 in (444 mm × 660 mm) |
Career |
Class |
- As built: I1
- Rebuilt 1925–32: I1x
|
Power class |
BR: 2P (I1x only) |
Withdrawn |
1944–1951 |
Disposition |
All scrapped
|
The LB&SCR I1 class was a class of 4-4-2 steam tank locomotives designed by D. E. Marsh for suburban passenger service on the London, Brighton and South Coast Railway.
This class was intended to haul secondary passenger trains, especially in the south London suburbs, and twenty locomotives were constructed by Brighton works between June 1906 and December 1907. The locomotives proved to be reliable but with disappointing performance in their original form, being poor steamers, but all of them passed to the Southern Railway in 1923.
Between 1925 and 1932 they were rebuilt by Richard Maunsell with spare boilers left over after the reuilding of the B4 and I3 classes. The rebuilt engines were designated I1x class, and these new larger boilders greatly improved their performance.
Two worn-out members of the class were withdrawn by the Southern Railway in 1944 and 1946 respectively, but the remainder survived into British Railways (BR) ownership in 1948, although all had been withdrawn by July 1951 and none have been preserved.
The first ten were numbered 595-604 and the second ten were numbered 1-10. The Southern Railway initially added a "B" prefix to these numbers and later renumbered them 2595-2604 and 2001-2010. BR added 30000 to the numbers but it is believed that only 32005 actually carried its number.
...
Wikipedia