GNRI Class PG

Specifications
Specifications
Configuration:;
• Whyte	0-6-0
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	4 ft 7+1⁄4 in (1,403 mm)
Loco weight	39 long tons 14 cwt (88,900 lb or 40.3 t)—49 long tons 0 cwt (109,800 lb or 49.8 t)
Boiler pressure	175 lbf/in2 (1,206.58 kPa)
Cylinders	Two, inside
Train heating	steam

Type and origin
Type and origin
Power type	Steam
Designer	C. Clifford
Serial number	10,11,100−103,151 (PG); 152-155 (QG); 119, 158-165 (QLG); 38, 39, 112 (GNQ);
Build date	1899—1911
Total produced	28

Great Northern Railway
Classes PG, QG, QLG and QNG
Great Northern Railway; Classes PG, QG, QLG and QNG
Power type
Type and origin
Power type	Steam
Designer	C. Clifford
Serial number	10,11,100−103,151 (PG); 152-155 (QG); 119, 158-165 (QLG); 38, 39, 112 (GNQ);
Build date	1899—1911
Total produced	28
Configuration:;
Specifications
Configuration:;
• Whyte	0-6-0
Gauge	5 ft 3 in (1,600 mm)
Driver dia.	4 ft 7+1⁄4 in (1,403 mm)
Loco weight	39 long tons 14 cwt (88,900 lb or 40.3 t)—49 long tons 0 cwt (109,800 lb or 49.8 t)
Boiler pressure	175 lbf/in2 (1,206.58 kPa)
Cylinders	Two, inside
Train heating	steam
Tractive effort
Performance figures
Tractive effort	19,880 lbf (88.43 kN)−24,065 lbf (107.05 kN)
Operators
Career
Operators	GNR(I) → UTA → CIÉ
Number in class	28

Great Northern Railway Classes PG, QG, QLG and QNG^[a] were a series of 0-6-0 freight locomotives introduced from 1899 by Charles Clifford.^[1]

History

The PG class was introduced in December 1899 by Charles Clifford with 4 feet 7 inches (1.40 m) driving wheels and 18+1⁄2 by 24 inches (47 cm × 61 cm) cylinders.^[2] The QG's introduced in 1904 were 1 foot 6 inches (0.46 m) longer than the PG with 18+1⁄2 by 26 inches (47 cm × 66 cm) cylinders weighed in 2 tons heavier.^[3] The key changed with the QLG class introduced in 1906 was a 4 feet 9 inches (1.45 m) wide boiler.^[4]

Notes

^ There are variations in the class designations, sometimes LQG is used for QLG for example

References

^ ^a ^b Boocock (2009), pp. 73−75.
^ Johnston (1999), pp. 81–82.
^ Johnston (1999), p. 83.
^ Johnston (1999), pp. 83–84.

Boocock, Colin (1 October 2009). "Locomotive Compendium Ireland" (1st ed.). Ian Allan. ISBN 9780711033603.
Johnston, Norman (1999). Locomotives of the GNRI. Newtownards: Colourprint Books. ISBN 1-898392-48-X. OCLC 43340833. OL 12248170M.

[2] There are variations in the class designations, sometimes LQG is used for QLG for example

[FOOTNOTEBoocock200973−75-1] Boocock (2009), pp. 73−75.

[FOOTNOTEJohnston199981–82-3] Johnston (1999), pp. 81–82.

[FOOTNOTEJohnston199983-4] Johnston (1999), p. 83.

[FOOTNOTEJohnston199983–84-5] Johnston (1999), pp. 83–84.

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