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Record: 10235 (26/09/2023)
(Free MySQL Counter)
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MSLR/LNER Parker "D8" Class 4-4-0
Class Types
| MSLR Class |
6DB |
| LNER Class |
D8 |
|
|
|
Power
|
Round Top |
Belpaire boiler |
| Variant Introduced |
1888 |
1910 |
| Tractive Effort |
14,057lbs |
As Round Top |
| Inside Cylinders |
18" x 26" (2 off) |
As Round Top |
| Inside Valves |
Slide |
As Round Top |
| Inside Motion |
Stephenson |
As Round Top |
Wheels
|
Round Top |
Belpaire boiler |
| Pony |
3' 61⁄2" |
As Round Top |
| Drivers |
6' 91⁄2" |
As Round Top |
| Locomotive Wheelbase |
22' |
As Round Top |
| Tender Wheelbase |
12' 6" |
As Round Top |
| Total Wheelbase |
44' 51⁄2" |
As Round Top |
| Descriptive Wheelbase |
6' 0" + 7' 6" + 8' 6" + 9' 11½" + 6' 3" + 6' 3" = 44' 5½" |
As Round Top |
Dimensions
|
Round Top |
Belpaire boiler |
| Length (over buffers) |
54' 07⁄8" |
As Round Top |
| Weight (in running order) |
77t 2cwt |
79t 7cwt |
| Weight (loco only) |
45t 19cwt |
48t 4cwt |
| Adhesive Weight |
31t 12cwt |
31t 16cwt |
| Maximum Axle Load |
16t 16cwt |
15t 18cwt |
| Water Capacity |
2,600gal |
As Round Top |
| Coal Capacity |
2t 15cwt |
As Round Top |
Boiler & Firebox
|
Round Top |
Belpaire boiler |
| Boiler Diagram |
|
21 |
| Boiler Notes |
|
Robinson GCR Standard No 1 boiler |
| Boiler Max Diameter |
4' 5" |
4' 4" |
| Boiler Barrel Length |
11' |
10' 81⁄8" |
| Boiler Pressure |
160lbs |
160lbs |
| Boiler Pitch |
7' 4" |
7' 71⁄4" |
| Firebox Type |
Round Top |
Belpaire |
| Firebox Length |
6' 6" |
6' |
| Firebox Grate Area |
19ft2 |
18.3ft2 |
| Firebox Heating Surface |
112ft2 |
99ft2 |
| Tube Number |
215 |
190 |
| Tube Diameter |
13⁄4" |
13⁄4" |
| Tube Area |
1118ft2 |
964ft2 |
| Total Evaporative Area |
1230ft2 |
1063ft2 |
| Total Heating Area |
1230ft2 |
1063ft2 |
|
