class class remembrance class design british steam locomotives converted large class tank locomotives redundant london brighton line following electrification hoped service obtained locomotives southern western section sharing duties class locomotives locomotives named famous victorian engineers remembrance memorial locomotive staff members died world war new form locomotives similar outline class suffered expectation crews improved version type despite ability accelerate good use cross country trains main lines class saw service withdrawn preserved background impending electrification central section lines question arose relatively new powerful designs looked possibility converting remembrance class tanks built proved capable machines brighton line relatively low boiler pressure psi excessive difference valve second valve particularly small relation large cylinders significant limitation use southern system decision taken rebuild conventional tender locomotives conversion seven class locomotives entered works rebuilding leaving works year conversion tender type entailed removing trailing water tanks bunker shortening fitting new window variety lord nelson class time revision locomotives end arrangement incorporating king arthur type blast pipe chimney boiler pressure increased psi whilst diameter marginally decreased inches class received imperial gallons gal class southern type smoke result classified corresponding old designation rebuilt modified locomotive conversion process created locomotive similar appearance king arthur class modified 1920s naming locomotives locomotives retained original names number remembrance whilst members class newly new named famous railway engineers new locomotive names suggested assistant distributed remembrance remembrance retained designated memorial employees lost world war original straight water tank mounting necessitating new rounded plates fit central wheel colour plate operational details rebuilding caused certain controversy crews maintaining changes reliable locomotive end process class suffered south western section expectation improved version king arthur class overcome class came services ability accelerate good use gained reputation rough riding relatively poor efficiency compared performance original class locomotives making unpopular crews class secondary duties cross country inter regional trains heavy london exeter expresses intended class loaned great western railway assist freight power acute shortage railway second world war class saw use increasing numbers able duties remembrance class began withdrawn service mid-1950s starting finally early withdrawal class ensured preserved featured opening shots film road accidents incidents december locomotive hauling passenger train ran rear surrey locomotive deemed economic repair scrapped hampshire numbering southern southern ownership originally painted olive green seen southern locomotive number tender tank wartime service southern saw locomotives painted black sunshine yellow lettering numbers allocated locomotives war locomotives turned sunshine yellow lettering british railways locomotives initial slightly modified southern green british railways replaced southern sunshine yellow lettering tender sides class turned british railways mixed traffic black red cream lining british railways crest placed tender water tank sides numbering series numbers
SR N15X class