Editing LSWR N15 class (section)

===Withdrawal===
The detail variations across the class meant the "Urie N15s" were placed into store over the winters of 1949 and 1952.<ref name=Bradley58>Bradley (1987), p. 58</ref> The Maunsell King Arthur examples were easier to maintain, and the large number of modern Bulleid Pacific and British Railways [[BR standard classes|Standard]] classes were able to undertake similar duties.<ref name=Clarke-48>Clarke (April 2008), p. 48</ref> The "Urie N15s" were brought into service during the summer months, although their deteriorating condition was demonstrated when No.&nbsp;30754 ''The Green Knight'' was withdrawn with cracked frames in 1953.<ref name=Bradley58 /> The slow running-down of the "Urie N15s" continued between 1955–1957, and several were stored prior to withdrawal.<ref name="Bradley62" /> The last three were withdrawn from service at Basingstoke shed, with No.&nbsp;30738 "King Pellinore" the final example to cease operation in March 1958.<ref name="Bradley62" /> All were broken up for scrap, though their names were given to 20 [[BR Standard Class 5]] locomotives allocated to the Southern Region between 1959–1962.<ref name="Bradley62" />

The Maunsell King Arthur class also faced a decrease in suitable work on the Central and Eastern sections following the introduction of BR Standard class 5MT and [[BR Standard Class 4 4-6-0]]s in 1955.<ref name=Bradley129 /> The gradual withdrawal of the "Urie N15s", H15s and [[SR N15X class|SR N15x]] classes presented an opportunity to replace the ageing Drummond "watercart" tenders fitted to Nos.&nbsp;448–457 with Urie {{convert|5000|impgal|L|sigfig=3|abbr=on}} bogie tenders.<ref name=Bradley129>Bradley (1987), p. 129</ref> This coincided with a 1958 programme to similarly change the {{convert|3500|impgal|L|sigfig=3|abbr=on}} Ashford tenders fitted to eight of the second batch "Eastleigh Arthurs".<ref name=Bradley130>Bradley (1987), p. 130</ref> The class remained intact until the completion of the [[Railway electrification in Great Britain|Eastern section electrification]] when 17 were made redundant in 1959.<ref name=Herring /> More withdrawals took place in 1960 when an increase in Bulleid Pacifics allocated to the Western section reduced available work.<ref name=Haresnape63>Haresnape (1983), p. 63</ref> The ranks thinned to 12 in 1961, and further withdrawals reduced the class to one, No.&nbsp;30770 ''Sir Prianius''.<ref name=Haresnape63 /> The class outlasted the newer – but less numerous – [[SR Lord Nelson Class|Lord Nelson]] class by one month when No.&nbsp;30770 was withdrawn from service at Basingstoke Shed in November 1962.<ref name=Herring /><ref>{{Cite web |url=http://www.brdatabase.info/locoqry.php?action=class&id=346005&type=S&page=fleet |title=LSWR/SR Urie "N15" Class 4-6-0 |website=www.brdatabase.info |access-date=23 May 2018 |url-status=live |archive-date=24 May 2018 |archive-url=https://web.archive.org/web/20180524083219/http://www.brdatabase.info/locoqry.php?action=class&id=346005&type=S&page=fleet}}</ref>

{|class="wikitable" style=text-align:center
|+ Table of withdrawals
! Year !! Quantity in<br />service at<br />start of year !! Number withdrawn !! Quantity<br />withdrawn !! Locomotive numbers
|-
| 1953 || 74 ||  1  ||  1 || align=left | 30754
|-
| 1955 || 73 ||  4  ||  5 || align=left | 30740/43/46/52 
|-
| 1956 || 69 ||  6  ||  11 || align=left | 30736–37/41/44–45/47
|-
| 1957 || 63 ||  8  ||  19  || align=left | 30739/42/48–51/53/55
|-
| 1958 || 55 ||  3  ||  22  || align=left | 30454,<br />30738/66
|-
| 1959 || 52 ||  17  ||  39  || align=left | 30449/52/55,<br />30767/76/78–80/84–87/89/92/97,<br />30801/05
|-
| 1960 || 35 ||  9  ||  48  || align=left | 30448/50/56,<br />30763/69/74–75/91/94
|-
| 1961 || 26 ||  14  ||  62  || align=left | 30453/57,<br />30764/68/71–72/77/83/90/99,<br />30800/02–03/06
|-
| 1962 || 12 ||  12  ||  74  || align=left | 30451,<br />30765/70/73/81–82/88/93/95–96/98,<br />30804
|-
|}