‘D’ class
Vital Statistics |
|
| Official Name |
‘D’ class |
| Nickname |
? |
| Water & Coal Storage |
Mixed Wooden (Webb) and steel (Whale) framed Tender |
| Water Capacity |
2,500 gallon |
| Coal Capacity |
5 tons |
| Wheel Arrangement |
0-8-0 |
| Driven Wheels |
Eight 4ft 5½in wheels
3rd pair flangeless |
| Non-Driven Wheels |
none |
| Wheelbase |
5ft 9in + 5ft 9in + 5ft 9in |
| Total Wheelbase |
17ft 3in |
| Boiler |
5ft 2in diameter; 15ft 6in long |
| Boiler Pressure |
175 psi |
| Grate Area |
23.6 sq.ft. |
| Tubes |
288 |
| Total Heating Area |
2043.25 sq.ft. |
| Cylinders |
Two inside 19½in diameter; 24in stroke |
| Weight |
56 tons 5 cwt |
| Designer |
Mr. G. Whale |
| Number in Class |
63 |
| Lifetime |
1906—1962 |
After the ‘C’ class  were found to be under-boilered,
Mr. Whale fitted the large boiler used on the ‘F’ class
to ‘A’ class conversions, a total of 63 engines. They
became very popular with enginemen, having great hauling power.
Features such as Whales long tapered stock buffers were added but
some still retained the flush profile ‘A’ class leading
crank pin , originally needed to fit behind the ‘A’ class
slide bars.
Distinguishing points are the large single sandbox (per
side), flush with the front of the smokebox and the bare flat plates
below the smokebox door, devoid of projections to cover piston rods.
Later sandboxes were added below the cab. Some appeared in LNWR
lined black but some were unlined at various stages.
View the Genealogy of the 0-8-0 Design.
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