The CV&HR F9 2-4-2T Locomotives
The Colne Valley & Halstead Railway (CV&HR) became a part of the LNER on 1st July 1923, and brought with it
the unserviceable CVHR No. 1 and these
three locomotives. Nos. 2 and 3 were built by Hawthorn, Leslie & Co. in 1887
to the specifications of George Copus, then General Manager. No. 4 was built seven years later in 1894.
Originally, all three ran with their works numbers and were named "Halstead", "Colne", and
"Hedingham" respectively. In about 1902, the works numbers were replaced with the
CV&HR numbers 2, 3, & 4; and the nameplates had been removed before their entered LNER ownership.
Between 1896 and 1903, all three were given new boilers. Both the original and the new boilers
were built from "barrels" connected by rings. The original boilers had three rings with the dome on the
centre ring, whilst the new boilers had two rings with the dome on the front ring.
All three locomotives were originally fitted with stovepipe chimneys, but copper-capped chimneys were
substituted at a later date. As overhauls were usually performed by the Great Eastern Railway (GER)
at Stratford, all three acquired occasional GER parts such as safety valve casings, and dome covers.
These engines worked the CV&HR, pulling passenger trains from Haverhill to Chappell. At Chappell,
through coaches to Colchester were attached to GER trains. After LNER ownership, these locomotives were
gradually replaced by F7 and
J65 locomotives.
The last F9, No. 8312, was withdrawn in 1930.
Technical Details
These are the technical details of the three F9s when they entered LNER ownership with the two-ring
boilers. From before 1923, No. 8312 ran with safety valves at 150psi. These were set back to 140psi in
1927.
| Cylinders (x2): |
|
16x24in. |
| Motion: |
Stephenson |
slide valves |
| Boiler: |
Max. Diameter: |
4ft 2in |
|
Pressure: |
140psi |
|
Diagram No.: |
36 |
| Heating Surface: |
Total: |
1038.49 sq.ft. |
|
Firebox: |
77.36 sq.ft. |
|
Tubes: |
961.13 sq.ft. (225x 1.625in) |
| Grate Area: |
|
14.58 sq.ft. |
| Wheels: |
Leading: |
3ft 2in |
|
Coupled: |
5ft 1in |
|
Trailing: |
3ft 2in |
| Tractive Effort: |
11,986lb |
(@ 85% boiler pressure) |
| Total Wheelbase: |
|
20ft 5in |
| Engine Weight: |
44 tons 12cwt |
(full) |
| Max. Axle Load: |
|
14 tons 5cwt |
| Coal Capacity: |
|
2 tons 10cwt |
| Water Capacity: |
|
1200 gallons |
Preservation
The last F9 was withdrawn in 1930, and none survived into preservation.
However, the CV&HR has re-opened as a preserved railway!
Models
I am not aware of any models of the F9s in any scale.
Locomotives
No. 4 was withdrawn in 1923, before it could receive an LNER number. The other two locomotives received
their LNER numbers in 1924.
|
