NBR J class

NBR J Class LNER Classes D29 & D30
Power type	Steam
Designer	William P. Reid
Builder	North British Locomotive Company and NBR Cowlairs Works
Build date	1909-1920
Configuration	4-4-0
Gauge	4 ft 8 1⁄2 in (1,435 mm)
Leading wheel diameter	3 ft 6 in (1.07 m)
Driver diameter	6 ft 6 in (1.98 m)
Length	46 ft 8.5 in (14.24 m)
Axle load	18.4 long tons (18.7 t)
Locomotive weight	54.8 long tons (55.7 t) D29, 57.3 long tons (58.2 t) D30/1, 57.8 long tons (58.7 t) D30/2
Tender weight	46.0 long tons (46.7 t)
Fuel type	coal
Boiler	5 ft 0 in (1.52 m) diameter
Boiler pressure	190 psi (1.3 MPa) D29, 165 psi (1.14 MPa) D30
Firegrate area	21.13 square feet (1.963 m2)
Heating surface: Tubes	1,478.3 square feet (137.34 m2) D29, 871.3 square feet (80.95 m2) D30/1 677.0 square feet (62.90 m2) D30/2
Heating surface: Firebox	139.7 square feet (12.98 m2)
Cylinders	2
Cylinder size	19 × 26 in (480 × 660 mm) D29, 20 × 26 in (510 × 660 mm) D30
Valve gear	Stephenson
Tractive effort	19,434 lbf (86.45 kN) D29 18,700 lbf (83 kN) D30
Power class	BR: 3P
Number	243-245, 338-340, 359-363, 400, 409-428, 497-501, 895-899, 990
Retired	1960

The NBR J Class (LNER Classes D29 & D30), were a class of 4-4-0 steam tender locomotives designed by William P. Reid for the North British Railway. They passed to the London and North Eastern Railway at the grouping in 1923. Ten D29s and 25 D30s survived into British Railways ownership in 1948.

Overview

The Original J Class locomotives were based on the NBR K Class mixed traffic 4-4-0s. The J Class had 6' 6" driving wheels for express passenger work and a large tender which carried sufficient water to allow passenger trains to run non-stop between Edinburgh and Carlisle. These locomotives were named after characters in the novels of Sir Walter Scott and naturally became known as "Scotts". Some of the names were later re-used on LNER Peppercorn Class A1 locomotives.

Builders

Six locomotives were built in 1909 by the North British Locomotive Company and a further ten were built in 1911 by the North British Railway at its Cowlairs railway works, followed by two further identical locomotives with superheaters.^[1] The NBR always referred to these locomotives as J Class, but the LNER classified the initial 16 locomotives D29, and the two superheated locomotives as D30.^[2] A further 25 superheated locomotives were built between 1914 and 1920 and the LNER classified these as D30/2.^[3]

Numbers

British Railways numbers ^[4] were:

• D29, 62401-62413 (with gaps)
• D30, 62417-62442 (62433 missing)

Names

BR numbers and names are listed below:

Class D29 62401 Dandie Dinmont 62402 Redgauntlet 62404 Jeanie Deans 62405 The Fair Maid 62406 Meg Merrilies 62409 Helen MacGregor 62410 Ivanhoe 62411 Lady of Avenel 62412 Dirk Hatteraick 62413 Guy Mannering

Class D30 62417 Hal o' the Wynd 62418 The Pirate 62419 Meg Dods 62420 Dominie Sampson 62421 Laird o' Monkbarns 62422 Caleb Balderstone 62423 Dugald Dalgetty 62424 Claverhouse 62425 Ellangowan 62426 Cuddie Headrigg 62427 Dumbiedykes 62428 The Talisman

Class D30 (continued) 62429 The Abbot 62430 Jingling Geordie 62431 Kenilworth 62432 Quentin Durward 62434 Kettledrummie 62435 Norna 62436 Lord Glenvarloch 62437 Adam Woodcock 62438 Peter Poundtext 62439 Father Ambrose 62440 Wandering Willie 62441 Black Duncan 62442 Simon Glover

References

1. ^ Marsden, Richard. "The Reid D29 'Scott' (NBR Class J) 4-4-0 Locomotives". The LNER Encyclopedia. Winwaed Software Technology LLC. http://www.lner.info/locos/D/d29.shtml. Retrieved 2008-11-20. 
2. ^ Marsden, Richard. "The Reid D30 'Superheated Scott' (NBR Class J) 4-4-0 Locomotives". The LNER Encyclopedia. Winwaed Software Technology LLC. http://www.lner.info/locos/D/d30.shtml. Retrieved 2008-11-20. 
3. ^ http://www.lner.info/locos/D/d30.shtml
4. ^ Ian Allan ABC of British Railways Locomotives, 1948 edition, part 4, pp 19-20

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