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[Author © Dr WP Brown PhD (plus 'DocsPics' help from AI these days), railway page updated September 23rd 2025]

Steam Locomotive 45212

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A history of steam locomotive 45212  *  My Main Railways Index

Nostalgic Steam Train Photos from the 1960s  *  Email: chem55555@hotmail.com

[Author and photographer © Dr Phil Brown PhD plus help from AI these days, page updated May13th 2026]

Stanier Black Five 5MT 4-6-0 steam locomotive 45212 at Oxenhope station on the Keighley and Worth Valley Railway (KWVR) in October 2023

Stanier Black Five 5MT 4-6-0 steam locomotive 45212 at Oxenhope station on the Keighley and Worth Valley Railway (KWVR) in October 2023  (photo courtesy of Kentish Bob YouTube https://www.youtube.com/@kentishbob6423 )


A comprehensive breakdown of LMS Stanier Black Five No. 45212—one of the most historically significant and operationally versatile preserved steam locomotives in Britain.


Historical Overview of 45212

  • Designer: Sir William Stanier, Chief Mechanical Engineer of LMS
  • Built: November 1935 by Armstrong Whitworth, Newcastle
  • Original Number: LMS 5212
  • Renumbered: 45212 under British Railways post-nationalisation in 1948
  • Class: LMS Stanier Class 5MT (Mixed Traffic)
  • Nickname: “Black Five” (a term affectionately applied to the entire class)

45212 was part of the iconic Black Five fleet—842 locomotives built between 1934 and 1951. These engines were designed to be powerful, reliable, and adaptable, capable of hauling both passenger and freight trains across the LMS network.


Technical Specifications of 45212

Feature Specification
Wheel Arrangement 4-6-0 (Whyte notation)
Gauge Standard (4 ft 8½ in / 1,435 mm)
Driving Wheel Diameter 6 ft 0 in (1.829 m)
Length 63 ft 7¾ in (19.40 m)
Fuel Type Coal
Fuel Capacity 9 long tons
Water Capacity 4,000 imperial gallons
Boiler Type LMS Type 3C
Boiler Pressure 225 psi
Firebox Grate Area 28.5 sq ft
Cylinders Two, outside (18½ in × 28 in)
Valve Gear Walschaerts
Valve Type Piston valves
Tractive Effort 25,455 lbf
Max Speed (Mainline) 60 mph (chimney first)
Safety Systems AWS, TPWS, OTMR, GSMR
Brake Type Vacuum
Route Availability BR RA 7

Heritage and Operational History of 45212

BR Service (1935–1968)

45212 served across northern England and Scotland, including allocations at:

  • Bradford Low Moor (25F) – from new
  • Fleetwood (24F) – post-WWII
  • Carnforth (10A) – multiple periods
  • Carlisle Kingmoor (12A) and Lostock Hall (10D) – final years

It was withdrawn on 3 August 1968, one of the last steam locomotives in BR service.

Preservation Era

  • Purchased directly from BR by Ron Ainsworth in August 1968—avoiding the scrapyard.
  • Preserved at Keighley & Worth Valley Railway (KWVR), where it remains based.
  • Overhauled (2000–2011) for use at the North Yorkshire Moors Railway.
  • Mainline Overhaul (2012–2016) by Ian Riley Engineering, certified for national rail use.
  • Jacobite Service: Since 2017, 45212 has regularly hauled the famous Fort William–Mallaig Jacobite steam service across the Glenfinnan Viaduct.

Liveries and Numbering of 45212

Liveries Worn by 45212:

  • LMS Black with Red/Yellow Lining – original livery as 5212
  • BR Black with Red Lining – standard post-nationalisation livery
  • BR Black with Early Emblem – used during early preservation
  • BR Black with Late Crest – often worn during mainline operations
  • Special Event Liveries – occasionally repainted for heritage galas or commemorative runs

Numbering:

  • 5212 – LMS numbering (1935–1948)
  • 45212 – BR numbering (1948–present)

Naming:

  • Like most Black Fives, 45212 was never officially named during its BR career or preservation. It remains nameless, in keeping with the class tradition.

* Doc Brown's Science Website biology chemistry physics *

45212, LMS 5212 was built by Armstrong Whitworth in 1935.

ROY 'CORKY' BROWN - Railwayman 1926-2001

Black Five steam locomotive 45212 reversing into Grosmont station on the NYMR.

 

Steam loco 45212 on banking duty, assisting 46100 ROYAL SCOT in March 2017 with a Grosmont - Pickering train on the NYMR

 

45212 leaving Grosmont station with the afternoon Pullman train to Pickering.

 

With the same train, 45212 leaving Goathland for Pickering.

 

The Stanier 4-6-0 'Black Fives' designed for passenger trains and express freight trains (mixed traffic 5MT rating).

Technical detail specifications of locomotive 45212/5212: Boiler pressure of 45212/5212: 225 lbf/sq.in., Weight of 45212/5212: loco 72.1 tons, tender 53.7 tons, Wheel diameter of 45212/5212: 3' 3½'', 6' 0", Valve gear of 45212/5212: Walschaerts piston valves, Cylinders (diameter x stroke) of 45212/5212: 18½" x 28" (O), Tractive effort of 45212/5212: 25450 lbf., BR Power classification of 45212/5212: Class 5MT

 

45212

 

Stanier Black Five 45212 climbs out of Newtondale with the Autumn colours of this mighty gorge as a backdrop.

 

45212 coasting down to Newtondale Halt.

 

 

 

 

 

 

 

 

Stanier Black Five 4-6-0 45212 ROY 'CORKY' BROWN (Railwayman 1926-2001) waits at Grosmont Station

 

45212 leaving Grosmont

 

45212 at Grosmont station.

 

Railways at War NYMR 2010

Wartime Weekend 2010: Black 5 45212 entering Levisham Station with a train from Pickering.

Railways at War NYMR 2010

 

Keighley & Worth Valley Railway:  Stanier Black 5 locomotive 45212 approaching Oxenhope with a demonstration goods train

 

 

Keighley & Worth Valley Railway:  Portrait of 45212

 

Stanier Black Five 45212 took part in the 50th Anniversary gala of the KWVR June 2018n(3 action pictures below)

 

Steam locomotive 45212 leaving Keighley Station with a KWVR train for Oxenhope.

 

45212 heading up the tree lined Worth Valley, June 2018


A history of Stanier Black 5 45212

Stanier Black Five 4‑6‑0 No. 45212 is one of the most historically significant and widely travelled of all surviving Black 5s — a locomotive that worked until the very last days of BR steam, avoided the scrapyard entirely, and today remains a mainline‑certified engine regularly seen on the Jacobite.
Below is a full, structured, deeply detailed history, grounded in the sourced material.

45212 was built by Armstrong Whitworth in 1935, worked across northern England and Scotland, survived until August 1968 as one of the very last BR steam locomotives, entered preservation directly (never going to Barry), and today operates mainline services including the Jacobite.


1. Construction and Design Context of Black 5 locomotive 45212 (1935)

  • Designer: Sir William Stanier
  • Builder: Armstrong Whitworth, Newcastle
  • Works No.: 1253
  • Built: November 1935
  • Original number: LMS 5212

The Black Five concept

Stanier’s Class 5MT was intended as a go‑anywhere mixed‑traffic locomotive, powerful enough for express work yet economical for freight.
A total of 842 were built between 1934–1951, making them one of the most successful British steam classes.


2. LMS & BR Service Career of Black 5 locomotive 45212 (1935–1968)

Early Allocations

  • Bradford Low Moor (25F) — from new in November 1935

Post‑war and BR Allocations

45212 moved widely across the LMS and later BR network:

  • Fleetwood (24F) — 1947–1964
  • Carnforth (10A) — 1964, again in 1965
  • Speke Junction (8C) — 1965
  • Carlisle Kingmoor (12A) — 1965–1968
  • Lostock Hall (10D) — 1968

Final BR Duties

45212 was one of the very last operational BR steam locomotives, withdrawn 3 August 1968.

A Unique Distinction

On 4 August 1968, 45212 hauled the final steam‑hauled revenue‑earning BR service, running from Preston to Blackpool.

This places it at the absolute end of the BR steam era.


3. Preservation of Black 5 locomotive 45212 (1968–Present)

Immediate Purchase — No Scrapyard

45212 was purchased directly from BR in August 1968 by Ron Ainsworth for the Keighley & Worth Valley Railway (KWVR).
It therefore never went to Barry and arrived in excellent mechanical condition.

Early Preservation

  • Arrived at KWVR in October 1968
  • Famously arrived covered in wallpaper as part of a Solvite advertising campaign

North Yorkshire Moors Railway Period (2000–2011)

  • Moved to the NYMR in 2000
  • Overhauled by Peter Best at Grosmont
  • Returned to KWVR in 2011 shortly before boiler certificate expiry

Mainline Overhaul (2012–2016)

A 10‑year agreement with Riley & Son (E) Ltd saw 45212 rebuilt to mainline standards.

Jacobite Service (2017–Present)

Since 2017, 45212 has regularly hauled the Fort William–Mallaig Jacobite, including crossing the Glenfinnan Viaduct.


4. Technical Specifications of Black 5 locomotive 45212 (from sourced data)

Feature Specification
Wheel arrangement 4‑6‑0
Boiler LMS Type 3C
Boiler pressure 225 psi
Cylinders 18½" × 28"
Valve gear Walschaerts
Tractive effort 25,455 lbf
Water capacity 4,000 gal
Coal capacity 9 tons
Route Availability BR RA 7

5. Historical Significance of Black 5 locomotive 45212

45212 is historically important because:

  • It is one of the last BR steam locomotives to operate in regular service (withdrawn August 1968).
  • It hauled the final BR steam revenue‑earning train.
  • It never went to Barry, making it one of the best‑preserved Black Fives mechanically.
  • It is mainline certified, a rare status among preserved steam locomotives.
  • It is a regular performer on the Jacobite, giving it one of the highest public profiles of any preserved steam engine.

6. Preservation Status Today (2026) of Black 5 locomotive 45212

  • Owner: Keighley & Worth Valley Railway
  • Operator: Riley & Son (E) Ltd (for mainline work)
  • Status: Operational, mainline certified

A very grubby 'Black Five' steam locomotive, but still working in 1966 !!!


See also ...

BR 44767 GEORGE STEPHENSON Locomotive LMS/BR Stanier Black Five

BR 44806 Steam Locomotive LMS/BR Stanier Black Five

BR 44871 SOVEREIGN Locomotive LMS/BR Stanier Black Five

BR 44932 Steam Locomotive LMS/BR Stanier Black Five

BR 45000 LMS 5000 Locomotive LMS/BR Stanier Black Five

BR 45110 RAF BIGGIN HILL Locomotive LMS/BR Stanier Black Five

BR 45231 THE SHERWOOD FORESTER Locomotive LMS/BR Stanier Black Five

BR 45305 Locomotive LMS/BR Stanier Black Five

BR 45407 Locomotive THE LANCASHIRE FUSILIER  LMS/BR Stanier Black Five

BR 45428 ERIC TREACY Locomotive LMS/BR Stanier Black Five

BR 45491 Locomotive LMS/BR Stanier Black Five

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Good trainspotting 'TRAINSPOTS' Good trainspotting and photographic locations  Barnetby Station, North Lincolnshire  *  Carlisle Station  *  Clapham Junction Station, London  *  Colton Junction, south of York  *  Crewe Station  *  Doncaster Station, South Yorkshire  * Hellifield station - Carlisle to Settle line * Lancaster station  * Newcastle Station  *  Northallerton Station  *  Nuneaton Station  *  Sheffield Station  *  Stratford Station, East London * Warrington Bank Quay station * Wigan North Western - WCML York Station

See other TOPS classes index of diesels and electrics * Class 01 * Class 02 * Class 03 * Class 04 * Class 08 * Class 09 * Class 10 * Class 11 * Class 14 * Class 20 * Class 24 * Class 25 * Class 26 * Class 27 * Class 31 * Class 33 * Class 35 * Class 37 * Class 40 * Class 43 * Class 44 * Class 45 * Class 47 * Class 50 * Class 52 * Class 55 * Class 56 * Class 57 * Class 58 Class 60 * Class 66 * Class 67 * Class 68 * Class 70 * Class 71 * Class 73 * Class 76 * Class 77 Class 84 * Class 86 * Class 87 * Class 88 * Class 90 * Class 91 * Class 92 * Derby Lightweight * Class 101 * Class 108 * Class 114 * Class 117 * Class 120 * Class 121 * Class 122 * Class 127 * Class 141 * Class 142 * Class 144 * Class 150 * Class 153 * Class 155 * Class 156 * Class 158 * Class 159 * Class 165 * Class 166 * Class 170 * Class 172 * Class 175 * Class 180 * Class 185 * Class 195  * Class 196 * Class 197 * Class 220 * Class 221 * Class 222 * Class 252 * Class 313 * Class 315 * Class 317 * Class 319 * Class 320 * Class 321 * Class 322 * Class 323 * Class 325 * Class 331 * Class 332 * Class 333 * Class 334 * Class 350 * Class 357 * Class 360 * Class 365 * Class 373 * Class 375 * Class 376 * Class 377 * Class 378 * Class 379 * Class 380 * Class 387 * Class 390 * Class 395 * Class 414 * Class 423 * Class 442 * Class 444 * Class 450 * Class 455 * Class 458 * Class 460 * Class 465 * Class 466 * Class 489 * Class 507/508 * Class 700 * Class 730  * Class 755 * Class 800 * Class 801 * Class 802 * Class 803 Class 805 * Class 3000 *

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