GNRI Class JT

GNR(I) class JT

A GNR(I) class JT at Portadown shed in 1964
Type and origin
Power type Steam
Designer J. C. Park
Builder Dundalk Works
Build date 1895–1902
Total produced 6
Specifications
Configuration:
 ​
 • Whyte 2-4-2T
 • UIC 1′B1 n2t
Gauge 5 ft 3 in (1,600 mm)
Driver dia. 5 ft 7 in (1,702 mm)
Boiler pressure 140–175 psi (0.97–1.21 MPa)
Cylinders Two, inside
Cylinder size 16–17 in (406–432 mm) bore
22 in (559 mm) stroke
Career
Operators GNR(I) → CIÉ
Class GNR(I): JT
Numbers 90, 93, 94, 95, 13 (→91), 14 (→92)
Withdrawn 1955–1963
Preserved No. 93
Disposition One preserved, remainder scrapped

The Great Northern Railway (Ireland) JT class comprised six 2-4-2T locomotives, all built between 1895 and 1902 at their Dundalk Works. These were of a J. C. Park design, but introduced following his death. They were used on Dublin suburban services; then on branch lines, including operation of the Dundalk, Newry and Greenore Railway when taken over in 1933. Most were withdrawn between 1955 and 1957, but No. 91 (ex No. 13 Tulip) passed to Córas Iompair Éireann (CIÉ), and lasted until 1963.

Loco details

They were subject to enlargement as batches were introduced, and rebuilt between 1917 and 1925 with improved 4-foot-2-inch (1.27 m) boilers and standard 16.5-by-22-inch (420 mm × 560 mm) cylinders. [1]

Table of locomotives [2]
GNRI
No. 		Name Manufacturer Serial
number 		Date
made 		Boiler
pressure 		Cylinder
bore 		Date
withdrawn 		Notes
93 Sutton Dundalk Works 16 1895 140 psi 16 in (406 mm) 1955
94 Howth Dundalk Works 17 1896 140 psi 16 in (406 mm) 1956
90 Aster Dundalk Works 18 1898 160 psi 17 in (432 mm) 1957
95 Crocus Dundalk Works 20 1898 160 psi 16 1⁄2 in (419 mm) 1955
13 Tulip Dundalk Works 23 1902 175 psi 17 in (432 mm) 1963 Renumbered 91 in 1920; to CIÉ 91N
14 Viola Dundalk Works 24 1902 175 psi 17 in (432 mm) 1956 Renumbered 91 in 1920

Preservation

One member of the class, No. 93 is preserved at the Ulster Folk and Transport Museum at Cultra, Co. Down.

See also

References

  1. ↑ Johnston & (year?), pp. 75–76.
  2. ↑ Rowledge 1993, p. 34.
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