Glasgow & South Western class 361
Great Britain 1900 34 produced
These locomotives were a reinforced version of the standard goods locos that James Manson had had built at Kilmarnock a few years earlier. They had larger cylinders and a larger wheel diameter. Modern features were a steam-powered reverser and steam-powered sanders. The first 20 were built by Neilson, Reid & Co., twelve more in 1907 by North British and a further two in 1910 by G&SWR's own workshops at Kilmarnock.
In 1920 Robert Whitelegg had these locomotives rebuilt with new boilers. Since he wanted to standardize the boiler types, these were the same as those on newly rebuilt passenger locomotives with a 4-4-0 wheel arrangement. They received a new ab, but no superheater.
Technical data
General
| Property | as built | rebuilt |
|---|---|---|
| Built | 1900, 1907, 1910 | 1920 |
| Manufacturers | Neilson, Reid & Co. | Kilmarnock |
| Wheel arrangement | 0-6-0 (Six-coupled) | |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | as built | rebuilt |
|---|---|---|
| Length | 14.87 m | |
| Wheelbase | 5.13 m | |
| Service mass | 43.5 t | 48.5 t |
| Adhesion mass | 43.5 t | 48.5 t |
| Total mass | 76.2 t | 80.5 t |
| Rigid wheelbase | 5.13 m | |
| Axle load | 15.9 t | 17 t |
| Water capacity | 11,364 l | |
| Fuel capacity | 5.1 t (coal) | |
Boiler
| Property | as built | rebuilt |
|---|---|---|
| Grate area | 1.672 m² | 1.706 m² |
| Firebox surface | 10.312 m² | 11.613 m² |
| Tube heating surface | 101.915 m² | 114.828 m² |
| Evaporative heating surface | 112.227 m² | 126.441 m² |
| Total heating surface | 112.2 m² | 126.4 m² |
Power plant
| Property | as built | rebuilt |
|---|---|---|
| Driver diameter | 1,562 mm | |
| Boiler pressure | 11.4 bar | 11.7 bar |
| Expansion type | simple expansion | |
| Cylinders | two, 457 x 660 mm | |
Power
| Property | as built | rebuilt |
|---|---|---|
| Power source | steam | |
| Estimated power | 466 kW (634 PS) | 522 kW (710 PS) |
| Starting effort | 85.5 kN | 88.0 kN |
Calculated values
| Property | as built | rebuilt |
|---|---|---|
| Factor of adhesion | 1 : 5.00 | 1 : 5.41 |
| Optimal speed | 34 km/h | 37 km/h |
| Power-to-weight ratio | 10.7 kW/t | 10.8 kW/t |
| Heating Surface Equivalent | 163.8 m² | 184.5 m² |
| Cylinder volume/HSE | 1 : 1,323.91 | 1 : 1,175.25 |
| Adhesive weight/Total | 1 : 1.00 | |
| Tractive force/Heating surface | 1 : 15.90 | 1 : 14.54 |
| Grate area/Heating surface | 1 : 67.12 | 1 : 74.12 |
| Firebox/Tube surface | 1 : 9.88 | 1 : 9.89 |
