GCR Class 5A LNER Class J63
No. 8208 at Immingham engine shed in 1947
Type and origin Power type Steam Designer John G. Robinson Build date 1906–1914 Total produced 7
Specifications Configuration: ​  • Whyte 0-6-0T  • UIC C n2t Gauge 4 ft 8+1⁄2 in (1,435 mm) Driver dia. 3 ft 6 in (1.067 m) Wheelbase 12 ft 0 in (3.66 m) Length 26 ft 11.5 in (8.22 m) over buffers Loco weight 37 long tons 9 cwt (83,900 lb or 38.1 t) Fuel type Coal Fuel capacity 1 long ton 10 cwt (3,400 lb or 1.5 t) Water cap. 950 imp gal (4,320 L; 1,140 US gal) Firebox: ​  • Grate area 11.43 sq ft (1.062 m2) Boiler pressure 150 psi (1.03 MPa) Heating surface 590 sq ft (55 m2) Cylinders Two, outside Cylinder size 13 in × 20 in (330 mm × 508 mm)
Performance figures Tractive effort 10,260 lbf (45.64 kN)
Career Operators Great Central Railway → London and North Eastern Railway → British Railways Class GCR: 5A LNER: J63 Number in class 7 Nicknames Dock Tanks Locale Immingham & Mersey Docks Delivered 1906-1914 Withdrawn 1953–1957 Disposition All scrapped

The GCR Class 5A was a class of seven 0-6-0T steams designed by John G. Robinson for work in docks operated by the Great Central Railway.^[1] They passed to the London and North Eastern Railway at the grouping in 1923 and received the LNER classification J63.

The class was introduced in 1906 as a replacement for the GCR Class 4 dock shunters, based on his predecessor's GCR Class 5 but with side tanks rather than saddle tanks. A seventh locomotive was built in 1914.

All seven examples survived into British Railways ownership in 1948, at least one being at Immingham in 1952,^[2] and at least one at Connah's Quay in 1954.^[3] They were all withdrawn between 1953 and 1957.

• Allen, D. W.; Boddy, M. G.; Brown, W. A.; Fry, E. V.; Hennigan, W.; Manners, F.; Neve, E.; Proud, P.; Roundthwaite, T. E.; Tee, D. F.; Yeadon, W. B. (November 1970), Fry, E. V. (ed.), Locomotives of the L.N.E.R., part 8A: Tank Engines - Classes J50 to J70, Kenilworth: RCTS, ISBN 0-901115-05-3^{[page needed]}
• Goode, C. Tony (1985). Railways of North Lincolnshire. Anlaby, Hull: C.T.Goode. ISBN 0-9508239-7-X.
• Green, C.C. (1996) [1983]. North Wales Branch Line Album. Shepperton: Ian Allan Publishing. ISBN 0-7110-1252-0.
• Hancox, A.C. (1995), The Harmonious Blacksmith Robinson, The Stephenson Locomotive Society, ISBN 0-903881-03-9^{[page needed]}
• Ludlam, A.J. (2016). Immingham - A Lincolnshire Railway Centre (Lincolnshire Railway Centres). Ludborough, Lincolnshire: Lincolnshire Wolds Railway Society. ISBN 978-0995461000.

• The Robinson J63 (GCR Class 5) 0-6-0ST Locomotives; LNER Encyclopedia
• Images of J63s, with random others, via Yahoo