LMS Rebuilt Royal Scot Class

The London Midland and Scottish Railway (LMS) Rebuilt Royal Scot Class is a class of 4-6-0 steam locomotives. 70 members of this class were rebuilt by the LMS and its successor British Railways (BR) from LMS Royal Scot Class engines by the replacement of their life expired parallel boilers with a type 2A boiler over the period 1943–1955. (The class sometimes is numbered 71 as it included a prototype 1935 rebuild LMS (4)6170 British Legion, but sufficient technical differences existed which dictate that it is treated separately). They were the second type of LMS 2 and 2A boilered 4-6-0 locomotives, after the rebuild of LMS 6399 Fury into British Legion and the LMS Rebuilt Jubilee Class.
LMS gave them the power classification 6P; this was later revised by BR to 7P.
==Rebuilding==
Year 	Number rebuilt	Numbers
1943 	9 	6103/8/9/12/7/24/5/32/46
1944 	9 	6116/9/20/7/9/31/3/8/45
1945 	11 	6101/22/6/44/9/50/2/9/60/6/9
1946 	10 	6104/14/8/21/8/39/47/57/61/8
1947 	3 	6111/5/35
1948 	4 	46105/54/62/7
1949 	6 	46102/6/23/30/43/53
1950 	6 	46100/7/13/36/41/55
1951 	2 	46142/64
1952 	3 	46140/58/65
1953 	4 	46110/34/51/63
1954 	2 	46148/56
1955 	1 	46137
Total	70 	
==1948 Exchange trials==
In the 1948 Locomotive Exchange Trials, carried out by the recently nationalized British Railways, involved 46154 The Hussar and 46162 Queens Westminster Rifleman. Apparently a rebuilt 'Royal Scot' proved capable of matching the maximum performance of the much larger LMS Coronation Class.
==Details==
Note: Date built refers to the 'LMS build and Rebuild date'.
LMS
No.	BR
No.	Name 	Builder 	Date
built	Date
rebuilt	Date
withdrawn	Notes
6100	46100	Royal Scot 	Derby 	Oct 1927	Jun 1950	Oct 1962	Permanently swapped identities with 6152 in 1933. Swap engine 6152 Preserved under 6100's identity.
6101	46101	Royal Scots Grey 	North British	Sep 1927	Nov 1945	Sep 1963	
6102	46102	Black Watch 	North British	Sep 1927	Oct 1949	Dec 1962	
6103	46103	Royal Scots Fusilier 	North British	Sep 1927	Jun 1943	Dec 1962	First locomotive to be rebuilt with a taper boiler.
6104	46104	Scottish Borderer 	North British	Sep 1927	Mar 1946	Dec 1962	
6105	46105	Cameron Highlander 	North British	Sep 1927	Mar 1948	Dec 1962	
6106	46106	Gordon Highlander 	North British	Sep 1927	Sep 1949	Dec 1962	Fitted with BR style smoke deflectors Dec. 1952
6107	46107	Argyll and Sutherland Highlander 	North British	Sep 1927	Feb 1950	Dec 1962	
6108	46108	Seaforth Highlander 	North British	Sep 1927	May 1948	Jan 1963	
6109	46109	Royal Engineer 	North British	Sep 1927	Jul 1943	Dec 1962	
6110	46110	Grenadier Guardsman 	North British	Sep 1927	Jan 1953	Feb 1964	
6111	46111	Royal Fusilier 	North British	Oct 1927	Oct 1947	Oct 1963	
6112	46112	Sherwood Forester 	North British	Oct 1927	Sep 1943	May 1964	
6113	46113	Cameronian 	North British	Oct 1927	Dec 1950	Dec 1962	
6114	46114	Coldstream Guardsman 	North British	Oct 1927	Jun 1946	Oct 1963	
6115	46115	Scots Guardsman 	North British	Oct 1927	Aug 1947	Jan 1966	Preserved – last to be withdrawn.
6116	46116	Irish Guardsman 	North British	Oct 1927	Aug 1944	Sep 1963	
6117	46117	Welsh Guardsman 	North British	Nov 1927	Dec 1943	Nov 1962	
6118	46118	Royal Welch Fusilier 	North British	Nov 1927	Dec 1946	Jun 1964	
6119	46119	Lancashire Fusilier 	North British	Nov 1927	Sep 1944	Dec 1963	
6120	46120	Royal Inniskilling Fusilier 	North British	Dec 1927	Nov 1944	Jul 1963	
6121	46121	H.L.I. from 1928 	North British	Nov 1927	Aug 1946	Dec 1962	Renamed 15 January 1949
6121	46121	Highland Light Infantry, City of Glasgow Regiment 	North British	Nov 1927	Aug 1946	Dec 1962	Renamed 15 January 1949
6122	46122	Royal Ulster Rifleman 	North British	Nov 1927	Sep 1945	Nov 1964	
6123	46123	Royal Irish Fusilier 	North British	Nov 1927	May 1949	Oct 1962	
6124	46124	London Scottish Regiment 	North British	Nov 1927	Dec 1943	Dec 1962	
6125	46125	Lancashire Witch 	North British	Sep 1927	Aug 1943	Oct 1964	Renamed June 1936
6125	46125	3rd Carabinier 	North British	Sep 1927	Aug 1943	Oct 1964	Renamed June 1936
6126	46126	Sans Pareil 	North British	Sep 1927	Jun 1945	Oct 1963	Renamed June 1936
6126	46126	Royal Army Service Corps 	North British	Sep 1927	Jun 1945	Oct 1963	Renamed June 1936
6127	46127	Novelty 	North British	Sep 1927	Aug 1944	Dec 1962	Renamed June 1936
6127	46127	The Old Contemptibles 	North British	Sep 1927	Aug 1944	Dec 1962	Renamed June 1936
6128	46128	Meteor 	North British	Sep 1927	Jun 1946	May 1965	Renamed April 1936
6128	46128	The Lovat Scouts 	North British	Sep 1927	Jun 1946	May 1965	Renamed April 1936
6129	46129	Comet 	North British	Sep 1927	Dec 1944	Jun 1964	Renamed January 1936
6129	46129	The Scottish Horse 	North British	Sep 1927	Dec 1944	Jun 1964	Renamed January 1936
6130	46130	Liverpool 	North British	Nov 1927	Dec 1949	Dec 1962	Renamed June 1935
6130	46130	The West Yorkshire Regiment 	North British	Nov 1927	Dec 1949	Dec 1962	Renamed June 1935
6131	46131	Planet 	North British	Sep 1927	Dec 1949	Dec 1962	Renamed May 1936
6131	46131	The Royal Warwickshire Regiment 	North British	Sep 1927	Dec 1949	Dec 1962	Renamed May 1936
6132	46132	Phoenix 	North British	Sep 1927	Oct 1944	Oct 1962	Renamed May 1936
6132	46132	The King's Regiment Liverpool 	North British	Sep 1927	Oct 1944	Oct 1962	Renamed May 1936
6133	46133	Vulcan 	North British	Oct 1927	Jul 1944	Feb 1963	Renamed May 1936
6133	46133	The Green Howards 	North British	Oct 1927	Jul 1944	Feb 1963	Renamed May 1936
6134	46134	Atlas 	North British	Oct 1927	Dec 1954	Nov 1962	Renamed May 1936
6134	46134	The Cheshire Regiment 	North British	Oct 1927	Dec 1954	Nov 1962	Renamed May 1936
6135	46135	Samson 	North British	Oct 1927	Jan 1947	Dec 1962	Renamed May 1936
6135	46135	The East Lancashire Regiment 	North British	Oct 1927	Jan 1947	Dec 1962	Renamed May 1936
6136	46136	Goliath 	North British	Oct 1927	Mar 1950	Apr 1964	Renamed May 1936 at Carlisle Citadel station
6136	46136	The Border Regiment 	North British	Oct 1927	Mar 1950	Apr 1964	Renamed May 1936 at Carlisle Citadel station
6137	46137	Vesta 	North British	Oct 1927	Mar 1955	Oct 1962	Renamed May 1936. Last locomotive to be rebuilt.
6137	46137	The Prince of Wales's Volunteers (South Lancashire)	North British	Oct 1927	Mar 1955	Oct 1962	Renamed May 1936. Last locomotive to be rebuilt.
6138	46138	Fury 	North British	Oct 1927	Jun 1944	Feb 1963	Renamed October 1929
6138	46138	The London Irish Rifleman 	North British	Oct 1927	Jun 1944	Feb 1963	Renamed October 1929
6139	46139	Ajax 	North British	Oct 1927	Nov 1946	Oct 1962	Renamed May 1936
6139	46139	The Welch Regiment 	North British	Oct 1927	Nov 1946	Oct 1962	Renamed May 1936
6140	46140	Hector 	North British	Oct 1927	May 1952	Nov 1965	Renamed May 1936
6140	46140	The King's Royal Rifle Corps 	North British	Oct 1927	May 1952	Nov 1965	Renamed May 1936
6141	46141	Caledonian 	North British	Nov 1927	Oct 1950	Apr 1964	Renamed June 1936
6141	46141	The North Staffordshire Regiment 	North British	Nov 1927	Oct 1950	Apr 1964	Renamed June 1936
6142	46142	Lion 	North British	Nov 1927	Feb 1951	Jan 1964	Renamed May 1936
6142	46142	The York and Lancaster Regiment 	North British	Nov 1927	Feb 1951	Jan 1964	Renamed May 1936
6143	46143	Mail 	North British	Nov 1927	Jun 1949	Dec 1963	Renamed July 1934
6143	46143	The South Staffordshire Regiment 	North British	Nov 1927	Jun 1949	Dec 1963	Renamed July 1934
6144	46144	Ostrich 	North British	Nov 1927	Jun 1945	Jan 1964	Renamed January 1933
6144	46144	Honourable Artillery Company 	North British	Nov 1927	Jun 1945	Jan 1964	Renamed January 1933
6145	46145	Condor 	North British	Dec 1927	Jan 1944	Dec 1962	
6145	46145	The Duke of Wellington's Regt. (West Riding) 	North British	Dec 1927	Jan 1944	Dec 1962	
6146	46146	Jenny Lind 	North British	Nov 1927	Oct 1943	Dec 1962	Renamed May 1936
6146	46146	The Rifle Brigade 	North British	Nov 1927	Oct 1943	Dec 1962	Renamed May 1936
6147	46147	Courier 	North British	Nov 1927	Sep 1946	Dec 1962	
6147	46147	The Northamptonshire Regiment 	North British	Nov 1927	Sep 1946	Dec 1962	
6148	46148	Velocipede 	North British	Dec 1927	Jul 1954	Nov 1964	Renamed October 1935
6148	46148	The Manchester Regiment 	North British	Dec 1927	Jul 1954	Nov 1964	Renamed October 1935
6149	46149	Lady of the Lake 	North British	Dec 1927	Apr 1945	Aug 1963	Renamed May 1936
6149	46149	The Middlesex Regiment 	North British	Dec 1927	Apr 1945	Aug 1963	Renamed May 1936
6150	46150	The Life Guardsman 	Derby 	Jun 1930	Dec 1945	Nov 1963	
6151	46151	The Royal Horse Guardsman 	Derby 	Jun 1930	Apr 1953	Dec 1962	
6152	46152	The King's Dragoon Guardsman 	North British	Jun 1930	Aug 1945	Apr 1965	Permanently swapped identities with 6100 in 1933. Preserved under identity of 6100 - first to be withdrawn.
6153	46153	The Royal Dragoon 	Derby 	Jun 1930	Aug 1949	Dec 1962	
6154	46154	The Hussar 	Derby 	Jul 1930	Mar 1948	Dec 1962	
6155	46155	The Lancer 	Derby 	Jul 1930	Aug 1950	Dec 1964	
6156	46156	The South Wales Borderer 	Derby 	Oct 1930	May 1954	Oct 1964	
6157	46157	The Royal Artilleryman 	Derby 	Jul 1930	Jan 1946	Jan 1964	
6158	46158	The Loyal Regiment 	Derby 	Aug 1930	Sep 1952	Oct 1963	
6159	46159	The Royal Air Force 	Derby 	Aug 1930	Oct 1945	Dec 1962	
6160	46160	Queen Victoria's Rifleman 	Derby 	Aug 1930	Feb 1945	May 1965	
6161	46161	The King's Own 	Derby 	Sep 1930	Oct 1946	Dec 1962	The King's Own carried from Sep. 1930 to Jun. 1931
6161	46161	King's Own 	Derby 	Sep 1930	Oct 1946	Dec 1962	The King's Own carried from Sep. 1930 to Jun. 1931
6162	46162	Queen's Westminster Rifleman 	Derby 	Sep 1930	Jan 1948	May 1964	
6163	46163	Civil Service Rifleman 	Derby 	Sep 1930	Oct 1953	Aug 1964	
6164	46164	The Artists' Rifleman 	Derby 	Sep 1930	Jun 1951	Dec 1962	
6165	46165	The Ranger (12th London Regt.) 	Derby 	Sep 1930	Jul 1952	Nov 1964	
6166	46166	London Rifle Brigade 	Derby 	Oct 1930	Jan 1945	Sep 1964	
6167	46167	The Hertfordshire Regiment 	Derby 	Oct 1930	Dec 1948	Apr 1964	
6168	46168	The Girl Guide 	Derby 	Oct 1930	Apr 1946	May 1964	
6169	46169	The Boy Scout 	Derby 	Oct 1930	May 1945	May 1963	
6170	46170	British Legion 	North British	Feb 1930	Oct 1935	Dec 1962	Rebuilt from experimental high pressure locomotive Fury with non-interchangeable boiler.
It was the only Rebuilt Scot to carry Crimson Lake livery in service, and a single chimney.
==Accidents==
*On 27 August 1950, 46119 Lancashire Fusilier was hauling the Irish Mail which was in a rear-end collision with a light engine LMS Hughes Crab No. 42885 at Penmaenmawr, Denbighshire due to a signalman's error. Six people died as a result of the crash.
*On 21 April 1952, 46117 Welsh Guardsman was one of two hauling an express passenger train which derailed at Blea Moor Loops, West Riding of Yorkshire due to a defect on the other locomotive causing a set of points to move under the train.
==Withdrawal==
All were withdrawn between 1962 and 1965 in accordance with the 1955 Modernization Plan.
Table of withdrawals
Year!	Quantity in
service at
start of year!	Quantity
withdrawn	Locomotive numbers
1962 	70	30	46100/02–07/09/13/17/21/23–24/27/30–32/34–35/37/39/45–47/51/53–54/59/61/64
1963 	40	15	46101/08/11/14/16/19–20/26/33/38/43/49–50/58/69
1964 	25	20	46110/12/18/22/25/29/36/41–42/44/48/55–57/62–63/65–68
1965 	5 	4 	46128/40/52/60
1966 	1 	1 	46115
==Preservation==
Of the 70 engines to be rebuilt only 2 members of the class have survived into preservation.
Number 	Number	Name 	Builder 	Built 	Withdrawn	Livery 	Location 	Owners 	Status 	Photograph
LMS 	BR 	Name 	Builder 	Built 	Withdrawn	Livery 	Location 	Owners 	Status 	Photograph
6100 (former 6152)	46100 	Royal Scot (former "The King's Dragoon Guardsman")	Derby Works 	Jun 1930 (Original engine built Oct 1927)	Oct 1962 	BR Green, Early Emblem	Crewe Diesel TMD	Royal Scot Locomotive and General Trust	Operational, Mainline Certified. 	
6115 	46115 	Scots Guardsman 	North British Locomotive Company	Oct 1927 	Jan 1966 	BR Green, Late Crest 	Carnforth MPD 	David Smith 	Operational, Mainline Certified. Mainline Ticket Expires: 2026	
Category:LMS locomotives
Category:Rebuilds
Category:LMS Royal Scot Class
Category:4-6-0 locomotives
Category:Standard gauge locomotives
Category:Derby Works locomotives
Category:North British locomotives
Category:Steam locomotives
Category:Locomotives
Category:4-6-0 steam locomotives
Category:Tender locomotives
Category:Standard gauge steam locomotives of Great Britain
Category:Restored locomotives