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LNER Class J38

class of 35 two-cylinder 0-6-0 locomotives

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionFeb 22, 2026
Entity authorityQ12061345
Source-derived summary

The London and North Eastern Railway Class J38 was a class of steam locomotive designed for freight transport. They were designed by Nigel Gresley and introduced in 1926. A total of 35 were built at the LNER's Darlington Works in 1926 and they were used in Scotland. All passed into British Railways ownership in 1948 and they were renumbered from 5900–5934 to 65900–65934.

The far more numerous J39 class was a later development, exchanging the J38's 4 ft 8 in (1.422 m) driving wheels with larger 5 ft 2 in (1.575 m). Some of the J38s were later rebuilt with J39 boilers.

Dimensions

BR Power classification: 6F

Locomotive weight: 58 long tons 19 cwt (132,000 lb or 59.9 t)

Tender weight: 44 long tons 4 cwt (99,000 lb or 44.9 t)

Boiler pressure: 180 psi (1,200 kPa)

Superheater: Yes

Cylinders: 20 in × 26 in (508 mm × 660 mm)

Driving wheel diameter: 4 ft 8 in (1.422 m)

Tractive effort: 28,415 lbf (126,400 N)

Valve gear: Stephenson

piston valves

Withdrawal

All J38s were withdrawn between 1962 and 1967, with the last two in service being No. 65901 and No. 65929. These two engines were the last Gresley-designed steam locomotives in service, and all were scrapped.

Editorial summary

“LNER Class J38” enters the record as class of 35 two-cylinder 0-6-0 locomotives. Crown Archives preserves that source wording while asking what LNER, Class and class can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1926, 1948, 1962, 1967—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around LNER, Class and class.
Editorial analysis

Why this record matters

“LNER Class J38” is worth following because a concise public description often conceals a longer documentary argument. Here, LNER, Class and class provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Feb 22, 2026. The linked authority identifier is Q12061345. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1926, 1948, 1962 and 1967.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

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  • Locating named sources
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The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “LNER Class J38”, its source revision and the description used here.
  2. Expand the search: follow LNER Class J38 primary sources, LNER Class J38 archive and LNER research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from LNER Class J38” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.