North Eastern classes T and T1
London & North Eastern class Q5
Great Britain 1901 90 produced
In 1901, Wilson Worsdell introduced a new class of 0-8-0 locomotives for the North Eastern Railway. It was designated class T and used for heavy goods and mineral traffic. A total of 90 were built in the same year. The actual class T was made up of 40 with piston valves, while 50 with slide valves were designated T1.
The ones with slide valves were found out to be more freely running on downhill sections. They operated trains of 1,300 tons at an average speed of 21 mph or 34 km/h. When the NER became part of the LNER, they were designated class Q5. Between 1932 and 1934, 14 got a bigger boiler and became subclass Q5/2, while the rest was renamed to Q5/1.
Technical data
General
- Built
- 1901
- Manufacturers
- Gateshead
- Wheel arrangement
- 0-8-0 (Eight-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 5.23 m
- Service mass
- 59.2 t
- Adhesion mass
- 59.2 t
- Total mass
- 98.5 t
- Rigid wheelbase
- 5.23 m
- Axle load
- 16.6 t
- Water capacity
- 17,913 l
- Fuel capacity
- 5.1 t (coal)
Boiler
- Grate area
- 1.997 m²
- Firebox surface
- 11.613 m²
- Tube heating surface
- 157.842 m²
- Evaporative heating surface
- 169.455 m²
- Total heating surface
- 169.5 m²
Power plant
- Driver diameter
- 1,403 mm
- Boiler pressure
- 12.1 bar
- Expansion type
- simple expansion
- Cylinders
- two, 508 x 660 mm
Power
- Power source
- steam
- Estimated power
- 597 kW (812 PS)
- Starting effort
- 124.6 kN
Calculated values
- Factor of adhesion
- 1 : 4.67
- Optimal speed
- 29 km/h
- Power-to-weight ratio
- 10.1 kW/t
- Heating Surface Equivalent
- 227.5 m²
- Cylinder volume/HSE
- 1 : 1,176.62
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 15.35
- Grate area/Heating surface
- 1 : 84.85
- Firebox/Tube surface
- 1 : 13.59
