| ITEM |
Imperial |
Metric |
| Wheel Arrangement |
'2-8-2 |
141 |
| Length over buffers (including tender) |
73' 83/8" |
22·457 m |
| Maximum Height |
13' 0" |
3·962 m |
| Maximum Width |
9' 0" |
2·743 m |
| Total locomotive and tender weight (full) |
172 tons 6 cwt |
175.1 tonnes |
| Weight of locomotive only (full) |
108 tons 10 cwt |
110.2 tonnes |
| Adhesive weight (full boiler) |
82 tons |
83.3 tonnes |
| Maximum axle load |
21 tons |
21·3 tonnes |
| Boiler pressure (maximum) |
250 lb/sq in |
17.25 Bar |
| Nominal tractive effort @ 85% boiler pressure |
43,684 lbs |
194.3 kN |
| Maximum speed |
75 mph |
145 km/h |
| Diameter of driving wheels |
6' 2" |
1·880 m |
| Diameter of pony wheels |
3' 2" |
0·965 m |
| Diameter of trailing carrying wheels |
3' 8" |
1·118 m |
| Cylinders |
'3 |
'3 |
| Piston stroke |
26" |
0·660 m |
| Piston diameter |
193/8" |
0.502 m |
| Valves |
Lentz/Franklin rotary cam poppet valves |
Lentz/Franklin rotary cam poppet valves |
| Inlet valve diameter |
8" |
203.2 mm |
| Exhaust valve diameter |
9" |
228.6 mm |
| Exhaust system |
Double Kylala Chapelon (Kylchap) |
Double Kylala Chapelon (Kylchap) |
| Axle bearings |
Timken taper roller throughout |
Timken taper roller throughout |
| BOILER |
Imperial |
Metric |
| Type |
Diagram 118A fully welded |
Diagram 118A fully welded |
| Maximum diameter |
6′ 5″ |
1·956 m |
| Overall length |
29' 0" |
8·839 m |
| Distance between tube plates |
17' 0¼" |
5·189 m |
| Heating surface (firebox) |
245·30 sq ft |
22.79 m2 |
| Heating surface (small tubes) |
1211.57 sq ft |
112.56 m2 |
| Heating surface (superheater flue tubes) |
1004.50 sq ft |
93.32 m2 |
| Total evaporative heating surfaces |
2461.37 sq ft |
228.67 m2 |
| Superheater heating surface |
697.67 sq ft |
64.14 m2 |
| Grand total heating surface |
3141.04 sq ft |
291.81 m2 |
| Firebox |
Wide (Wooton) type with combustion chamber |
Wide (Wooton) type with combustion chamber |
| Grate area |
50 sq ft |
4.65 m2 |
| Grate type |
Rocking with hopper ashpan |
Rocking with hopper ashpan |
| Small tubes |
121 x 2 1/4″ D |
121 x 57.2 mm D |
| Superheater flues |
43 x 5 1/4″ D |
43 x 133,4 mm D |
| Superheater elements |
43 x 4 pass elements |
43 x 4 pass elements |
| TENDER |
Imperial |
Metric |
| Coal capacity |
7·5 tons |
7·62 tonnes |
| Water capacity |
6,200 gallons |
28,186 litres |
| Weight (full) |
63 tons 16 cwt |
64.82 tonnes |
| Wheel arrangement |
8 wheels rigid frame |
8 wheels rigid frame |
| Wheel diameter |
4′ 2″ |
1.27 m |