DWWR 24

Specifications
Specifications
Configuration:;
• Whyte	2-4-0
• UIC	1B n2
Gauge	5 ft 3 in (1,600 mm)
Leading dia.	3 ft 7+1⁄2 in (1,105 mm)
Driver dia.	5 ft 4+1⁄4 in (1,632 mm)
Length	29 ft (8,800 mm) (est.)
Axle load	11.5 long tons (11.7 t)
Loco weight	32.2 long tons (32.7 t)
Water cap.	2,100 imp gal (9,500 L; 2,500 US gal)
Boiler pressure	160 lbf/in2 (1.10 MPa)
Cylinders	2
Cylinder size	16 in × 22 in (406 mm × 559 mm)

Type and origin
Type and origin
Power type	Steam
Designer	Meikle/John Wakefield
Builder	Sharp Stewart
Serial number	1478–80 2304/5
Build date	1864, 1873
Total produced	5

DW&WR 24
DW&WR 24
Power type
Type and origin
Power type	Steam
Designer	Meikle/John Wakefield
Builder	Sharp Stewart
Serial number	1478–80 2304/5
Build date	1864, 1873
Total produced	5
Configuration:;
Specifications
Configuration:;
• Whyte	2-4-0
• UIC	1B n2
Gauge	5 ft 3 in (1,600 mm)
Leading dia.	3 ft 7+1⁄2 in (1,105 mm)
Driver dia.	5 ft 4+1⁄4 in (1,632 mm)
Length	29 ft (8,800 mm) (est.)
Axle load	11.5 long tons (11.7 t)
Loco weight	32.2 long tons (32.7 t)
Water cap.	2,100 imp gal (9,500 L; 2,500 US gal)
Boiler pressure	160 lbf/in2 (1.10 MPa)
Cylinders	2
Cylinder size	16 in × 22 in (406 mm × 559 mm)
Tractive effort
Performance figures
Tractive effort	11,140 lbf (49.55 kN)
Operators
Career
Operators	DW&WR; DSER; GSR;
Class	G7 (Inchicore)
Power class	Q
Number in class	4
Numbers	24,25,26,32,33; 422 (GSR);
Locale	Ireland
Withdrawn	1928
	As built

Dublin, Wicklow and Wexford Railway (DW&WR) 24 was the lead engine of a class of five 2-4-0 tender locomotives built in two batches in 1864 and 1873.

History

The engines are attributed to the locomotive superintendent William Meikle and the first three, Nos. 24 (Glenamore), 25 (Gleanart) and No. 26 were supplied in 1864. A further two, No. 32 (Glenmalure) and No. 33 (Glendalough) with detail differences followed in 1873.^{[Note 2]}^[1]

At this time the DW&WR was extending south, from Enniscorthy in 1963 to Wexford by 1874. These engines took over the main line express passenger trains to Wicklow and Wexford from earlier 2-4-0 types.^[2] They continued to work main line expresses until replaced by more powerful 4-4-0s in 1895.^[2]

No. 26 (Blackrock) was converted into a 2-4-0 T locomotive in 1900 and served on the Shillelagh branch line thereafter.^[1]

No. 25 was Irish Civil War loss. All were life expired by 1925 and withdrawn immediately on the amalgamation to Great Southern Railways apart from No. 24 which lasted until 1928 becoming GSR No. 422 and the sole member of class 422 / G7.^[1]

Notes and references

Notes

^ Ahrons records 15" x 22" cylinders and records driving wheels of 5' 3" rebuilt to 15" x 24" and 5' 6" in 1886. Both Ahrons and Clements/McMahon also note differences in the later engines.
^ The initial date of 1964 preceded John Wakefield's appointment although some sources attribute the locomotives to him

References

^ ^a ^b ^c ^d Clements, Jeremy; McMahon, Michael (2008). Locomotives of the GSR. Colourpoint Books. pp. 129–133, 157–158. ISBN 9781906578268.
^ ^a ^b Ahrons, E. L. (1954). L. L. Asher (ed.). Locomotive and train working in the latter part of the nineteenth century. Vol. six. W Heffer & Sons Ltd. p. 44.

[Differences-2] Ahrons records 15" x 22" cylinders and records driving wheels of 5' 3" rebuilt to 15" x 24" and 5' 6" in 1886. Both Ahrons and Clements/McMahon also note differences in the later engines.

[Meikle-3] The initial date of 1964 preceded John Wakefield's appointment although some sources attribute the locomotives to him

[JCMM-DSER-24-1] Clements, Jeremy; McMahon, Michael (2008). Locomotives of the GSR. Colourpoint Books. pp. 129–133, 157–158. ISBN 9781906578268.

[AV6-4] Ahrons, E. L. (1954). L. L. Asher (ed.). Locomotive and train working in the latter part of the nineteenth century. Vol. six. W Heffer & Sons Ltd. p. 44.

[1]

[Note 1]

[Note 2]

[2]

Steam locomotives of Ireland
Belfast and County Down Railway (1846–1948)	1 4 5 6 8 9 14 22 26 29
Belfast and Northern Counties Railway (1860–1903)	A B C D E F G H I J K L M N O P Q R S
Northern Counties Committee (1903–1949)	A1 B1 B2 B3 D1 E1 F1 K1 L1 S1 S2 U U1 U2 V W WT Y
Great Northern Railway (1876–1958)	A AL B BP BT C D E G H J JT NQG NLQG P PG PP Q QG QGTs QGT2 QL QLG QNG RT S & S2 SG & SG2 SG3 T T2 U V UG VS 203 204
Sligo, Leitrim and Northern Counties Railway (1875–1957)	Erne Faugh-a-Ballagh Glencar Leitrim Lough Pioneer Sir Henry Waterford
Cork, Bandon and South Coast Railway (1849–1924)	1, 2 1, 2, 4A, 8 2 (II) 3, 4 3, 9, 10, 18 5, 6 7 (I) 7 (II) 9, 10 11 5, 6, 12, 16, 17 14, 15 19, 20 4, 8, 11, 13, 14, 15, 19, 20 Argadeen St Molaga Slaney
Dublin and Kingstown Railway (1834–1856)	Vauxhall Hibernia Star Victoria Princess Burgoyne
Dublin and South Eastern Railway (1854–1925)	1, 2, 6–7, 9–10, 28, 44–47, 49 3, 8, 10–12, 27–30, 40, 45–46 4–5 13–14, 18, 65–66 15–16 15–23, 37–39, 48 17, 36 20, 34–35 42–44 50–51 52–54 55–58 59–64 67–68 69–70
Great Southern and Western Railway (1845–1924)	1 2 21 23 27 33 37 41 43 44 45 28 & 47 52 56 60 62 64 90 91 92 99 100 101 102 104 110 & 112 116 117 119 122 124 133 139 144 201 203 204 207 & 217 211 213 249 & 351 257 301 305 309 321 333 341 355 362 368 400 500 900 Fairy Jumbo Sambo Sprite
Midland Great Western Railway (1847–1924)	1 2 3 4 5 6 7 7–12 8 9 10 11 12 13 14 15 16 17 18 19 A B C D D-bogie D2 E F H K L P W
Great Southern Railways (1925–1944)	280 342 372 393 495 670 700 710 800 850
Córas Iompair Éireann (1945–1962)	Turf Burner No. CC1
Tralee and Dingle Light Railway (1891–1953)	1, 2, 3, 6, 8 4 5 7, 8 (4T)
Industrial engines	CSÉT Shunting Locomotives R. H. Smyth