GNRI Class BT

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Great Northern Railway
Class BT
GNRI Class BT No. 1 at Irish Street in 1909.jpg
BT No. 1 at Irish Street Halt, Armagh, 1909
Type and origin
Power typeSteam
DesignerJ.C. Park
Build date1885
Total produced13
Specifications
Configuration:
   Whyte 4-4-0 T
Gauge 5 ft 3 in (1,600 mm)
Driver dia.4 ft 7 in (1,397 mm)
Boiler pressure160 lbf/in2 (1,103.16 kPa)
Cylinders Two, inside
Cylinder size 15 in × 20 in (380 mm × 510 mm)
Train heatingsteam
Career
Operators GNR(I)
Number in class13

Great Northern Railway Class BT were a class of 13 4-4-0 T tank locomotives introduced by the GNR(I) from 1885. [1]

While fit for purpose when built, increasing train weights particularly with bogie carriages a factor meant by the 1920s they were underpowered for all available work and were withdrawn by 1921. [2]

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References