LNER Class J39

Specifications
Specifications
Configuration:;
• Whyte	0-6-0
• UIC	Ch
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	62 in (1.575 m)
Length	J39/1: 54 ft 0 in (16.46 m); J39/2: 55 ft 8+3⁄8 in (16.977 m); J39/3: 54 ft 10+1⁄8 in (16.716 m);
Loco weight	57.85 long tons (58.8 t; 64.8 short tons)
Tender weight	J39/1 44.2 long tons (44.9 t; 49.5 short tons), J39/2 52.65 long tons (53.5 t; 59.0 short tons) J39/3, various
Fuel type	Coal
Water cap.	Various
Firebox:
• Grate area	26 sq ft (2.4 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface	1,397.78 sq ft (129.858 m2)
Superheater:;
• Heating area	271.80 sq ft (25.251 m2)
Cylinders	Two, inside
Cylinder size	20 in × 26 in (508 mm × 660 mm)
Valve gear	Stephenson
Valve type	piston valves

Type and origin
Type and origin
Power type	Steam
Designer	Nigel Gresley
Build date	1926-1941
Total produced	289

LNER Class J39
LNER Class J39
	No. 4965 at Grantham Shed 1947
Power type
Type and origin
Power type	Steam
Designer	Nigel Gresley
Build date	1926-1941
Total produced	289
Configuration:;
Specifications
Configuration:;
• Whyte	0-6-0
• UIC	Ch
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	62 in (1.575 m)
Length	J39/1: 54 ft 0 in (16.46 m); J39/2: 55 ft 8+3⁄8 in (16.977 m); J39/3: 54 ft 10+1⁄8 in (16.716 m);
Loco weight	57.85 long tons (58.8 t; 64.8 short tons)
Tender weight	J39/1 44.2 long tons (44.9 t; 49.5 short tons), J39/2 52.65 long tons (53.5 t; 59.0 short tons) J39/3, various
Fuel type	Coal
Water cap.	Various
Firebox:
• Grate area	26 sq ft (2.4 m2)
Boiler pressure	180 psi (1.24 MPa)
Heating surface	1,397.78 sq ft (129.858 m2)
Superheater:;
• Heating area	271.80 sq ft (25.251 m2)
Cylinders	Two, inside
Cylinder size	20 in × 26 in (508 mm × 660 mm)
Valve gear	Stephenson
Valve type	piston valves
Tractive effort
Performance figures
Tractive effort	25,665 lbf (114.16 kN)
Operators
Career
Operators	London and North Eastern Railway; British Railways
Class	LNER: J39; BR: 4P5F
Disposition	All scrapped

The London and North Eastern Railway (LNER) Class J39 was a class of medium powered 0-6-0 steam locomotive designed for mixed traffic work throughout the former LNER system between London and the north of Scotland.^[3]

History

The class was introduced by Nigel Gresley in July 1926, based on his previous Class J38 (introduced in January 1926) but with larger driving wheels. The larger wheels enabled them to be used on both passenger and freight trains, although at the expense of a lower tractive effort. As a result they were given the BR power classification 4P/5F, rather than the 6F of the earlier class. A total of 289 examples were built over next fifteen years.

The larger wheels necessitated the provision of low splashers over the front two wheels, which is the main means of differentiating between the two classes. The locomotives were all fitted with superheaters and Ross 'Pop' safety valves.^[3]

All passed into British Railways ownership in 1948 and they were numbered 64700-64988. They began to be withdrawn from service in 1959 and all examples had been scrapped by the end of 1962.^[4]

Sub-classes

The class was divided into three sub-classes depending on the type of tender fitted.

J39/1 Standard LNER 3500 gallon tender.
J39/2 Standard LNER 4200 gallon tender.
J39/3 Various former North Eastern Railway tenders 3940-4125 gallons.

Accidents and incidents

Circa 1930, locomotive No. 1448 was derailed by trap points at Lumpsey Colliery, Brotton, Yorkshire.^[5]
On 28 August 1950, the connecting rod of a locomotive of this class became detached and consequently pierced the firebox, scalding the driver.^[6]
On 23 October 1950, locomotive No. 64880 was hauling a passenger train that was derailed at Drumburgh, Cumberland due to the condition of the track. Two people were killed and three were injured.^[7]

Preservation

None have survived to preservation but there are plans to build a replica of an LNER J39,(BR 64960) along with a J38, for preservation in a few years to come.^{[citation needed]}

In model form

Bachmann manufactures the J39/2 version in 00 gauge model form. [1]

Bassett-Lowke manufactures the J39/2 version in 0 gauge model form.

Union Mills manufactures the J39 in British N-Scale

Graham Farish-Bachmann manufactures the J39 in N Scale|British N-Scale as BR black with late crest & stepped tender numbered as 64841 and 64880

References

^ Boddy et al. 1982, p. 16.
^ ^a ^b ^c Boddy et al. 1982, p. 15.
^ ^a ^b Casserley, (1960), p.186.
^ Stubbs & Boddy, (1963), p.9.
^ Trevena (1981), p.26.
^ "Locomotive failure near Winchfield 23 November 2013" (PDF). Rail Accident Investigation Branch. p. 32. Retrieved 17 June 2014.
^ Earnshaw (1993), p.24.

Sources

Boddy, M.G.; Neve, E.; Tee, D.F.; Yeadon, W.B. (September 1982). Fry, E.V. (ed.). Locomotives of the L.N.E.R., part 6A: Tender Engines - Classes J38 to K5. Kenilworth: RCTS. ISBN 0-901115-53-3. {{cite book}}: Invalid |ref=harv (help)
Earnshaw, Alan (1993). Trains in Trouble: Vol. 8. Penryn: Atlantic Books. ISBN 0-906899-52-4. {{cite book}}: Invalid |ref=harv (help)
Ian Allan ABC of British Railways Locomotives, 1962 edition.
H.C. Casserley, The Observers book of railway locomotives of Britain, Federick Warne & Co. Ltd. 1960.
W.T. Stubbs and M.G. Boddy, Locomotive stock book 1963, Railway Correspondence and Travel Society, 1963.
Trevena, Arthur (1981). Trains in Trouble: Vol. 2. Redruth: Atlantic Books. ISBN 0-906899-03-6. {{cite book}}: Invalid |ref=harv (help)

External links

[FOOTNOTEBoddyNeveTeeYeadon198216-1] Boddy et al. 1982, p. 16.

[FOOTNOTEBoddyNeveTeeYeadon198215-2] Boddy et al. 1982, p. 15.

[Casserley,_1960,_p.186-3] Casserley, (1960), p.186.

[4] Stubbs & Boddy, (1963), p.9.

[5] Trevena (1981), p.26.

[RAIB132014-6] "Locomotive failure near Winchfield 23 November 2013" (PDF). Rail Accident Investigation Branch. p. 32. Retrieved 17 June 2014.

[7] Earnshaw (1993), p.24.

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