{"title":"Era 7 - British Rail TOPS 1971 - 1986","description":"\u003ch3\u003e\u003cspan class=\"mw-headline\" id=\"TOPS_numbering_under_British_Rail\"\u003eTOPS numbering under British Rail\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eSequential was all that was required, but with the requirement to renumber, it was decided to adopt a logical system for classification, and the five- or six-digit TOPS number was divided into two parts. No class of locomotive or\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Multiple_unit\" title=\"Multiple unit\"\u003emultiple unit\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003enumbered over 1000 examples, so the last three digits were used for the individual number between 001 and 999 (Although\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/British_Rail_Class_43_(HST)\" title=\"British Rail Class 43 (HST)\"\u003eClass 43\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003egoes down to 000, it being the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/British_Rail_Class_41_(HST)\" title=\"British Rail Class 41 (HST)\"\u003eHST prototype\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003epower cars) in that class. The first two or three digits were used to denote the class of locomotive or multiple unit. The numbers were often written in two space separated groups, such as \"47 401\" to highlight that division, but the TOPS system actually stored and displayed them without the space: \"47401\". Sub-classifications were indicated in the TOPS system with a slash and a subclass number, e.g. \"47\/4\". It was convention, though not enforced within the TOPS system, that subclass numbers were boundaries in the locomotive numbering system, such that class \"47\/4\" started with number \"47 401\". If there were more than 99 numbers in a subclass, the number series extended to the next value of the third digit; thus, since there were more than 200 locomotives in class \"47\/4\", subclasses \"47\/5\" and \"47\/6\" did not exist, and the next valid subclass by convention was \"47\/7\" starting with \"47 701\". However, in some cases, the sequences do not match, e.g.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/British_Rail_Class_158\" title=\"British Rail Class 158\"\u003e158\/\u003cb\u003e0\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003enumbers start at 158\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e7\u003c\/b\u003e01.\u003c\/p\u003e\n\u003cp\u003eLocomotives are assigned classes 01–98: diesel locomotives 01–79 (originally 01–69), AC electric locomotives 80–96, departmental locos (those not in revenue-earning use) 97, and steam locomotives 98. DC\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Electric_locomotive\" title=\"Electric locomotive\"\u003eelectric locomotives\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewere originally allocated classes 70–79 but this was modified in 2011 (see\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/British_Rail_locomotive_and_multiple_unit_numbering_and_classification\" title=\"British Rail locomotive and multiple unit numbering and classification\"\u003eBritish Rail locomotive and multiple unit numbering and classification\u003c\/a\u003e); the sole relic of this is\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/British_Rail_Class_73\" title=\"British Rail Class 73\"\u003eClass 73\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ewhich continues unrenumbered, probably because it can be considered equally a diesel locomotive as it is a DC electric. One oddity was the inclusion of British Rail's shipping fleet in the system as Class 99.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Diesel_multiple_unit\" title=\"Diesel multiple unit\"\u003eDiesel multiple units\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(DMUs) with mechanical or hydraulic transmission are classified 100–199, with electric transmission 200–299.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Electric_multiple_unit\" title=\"Electric multiple unit\"\u003eElectric multiple units\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e(EMUs) are given the subsequent classes; 300–399 are overhead AC units (including AC\/DC dual-voltage units, and new DC only units with pantogaph wells allowing for conversion to AC), while Southern Region DC\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Third_rail\" title=\"Third rail\"\u003ethird rail\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eEMUs are 400–499, other DC EMUs 500–599. More recently, new electric multiple units from the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Siemens_Desiro\" title=\"Siemens Desiro\"\u003eSiemens Desiro\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efamily have been given the 700 series and new units from the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Hitachi_A-train\" title=\"Hitachi A-train\"\u003eHitachi A-train\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efamily have been given the 800 series. Selected numbers in the 900 series have been used for departmental multiple units, mostly converted from former passenger units.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Coach_(rail)\" class=\"mw-redirect\" title=\"Coach (rail)\"\u003eCoaching stock\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand individual multiple unit cars are allocated five-digit numbers; since the early 1980s, it has been forbidden for them to have the same numbers as locomotives, but before then duplication was possible because they carried a prefix letter, which was considered part of the number. More recent EMU deliveries have six-figure coach numbers.\u003c\/p\u003e","products":[{"product_id":"r296","title":"Track Cleaning Coach - Era 7 - R296","description":"\u003cp\u003eTrack Cleaning Coach - Era 7\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":33006871183500,"sku":null,"price":33.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R296-sideLOCO_5699adad-9186-4480-90f3-443d8da94620.jpg?v=1745498542"},{"product_id":"r6423","title":"BR, Car Transport Bogie Wagon - Era 7 - R6423","description":"\u003cp\u003eBR, Car Transport Bogie Wagon - Era 7\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":33007293268108,"sku":null,"price":21.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R6423-Car-Transporter-BogieLOCO.jpg?v=1745498503"},{"product_id":"r6425","title":"BR, FFA Container Wagon, with two 30' containers - Era 7 - R6425","description":"\u003cp\u003eBR, FFA Container Wagon, with two 30' containers - Era 7\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":33015729520780,"sku":null,"price":21.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R6425.jpg?v=1756742226"},{"product_id":"r40218","title":"BR InterCity, Mk1 RBR, 1646 - Era 7 - R40218","description":"\u003cp\u003e\u003cstrong\u003eProduct Information.\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eBR InterCity, Mk1 RBR, 1646 - Era 7\u003cbr\u003eR40218\u003cbr\u003eHornby\u003cbr\u003eCoaches\u003cbr\u003e\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":42288638820595,"sku":null,"price":40.04,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R40218_1_d2f7bb4d-468f-45e1-9787-de82c35759b8.jpg?v=1745498213"},{"product_id":"r40217","title":"BR InterCity, Mk1 RBR, E1696 - Era 7 - R40217 -LAST CHANCE TO BUY","description":"\u003cp\u003e\u003cstrong\u003eProduct Information.\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eBR InterCity, Mk1 RBR, E1696 - Era 7\u003cbr\u003eR40217\u003cbr\u003eHornby\u003cbr\u003eCoaches\u003cbr\u003e\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":42288638886131,"sku":null,"price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R40217_1_b5ae68c9-c924-4020-9766-ca4dca72089c.jpg?v=1745498213"},{"product_id":"r60204","title":"BR, YMO 'Salmon' Bogie Wagon - Era 7 - Hornby R60204","description":"\u003cp\u003e0\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":43587982885107,"sku":null,"price":38.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R60204_8b968312-f434-4b22-bdf1-033929e42caf.webp?v=1747923782"},{"product_id":"r60205","title":"BR, YMO 'Salmon' Bogie Bolster Wagon - Era 7 - Hornby R60205","description":"\u003cp\u003e0\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":43587982917875,"sku":null,"price":38.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R60205_cc62df60-9518-43ba-95c8-686bf2329337.webp?v=1747923783"},{"product_id":"r4970","title":"BR InterCity APT-U Ex-TS Development Vehicle Sc48204-977527 - Era 7 -Hornby- R4970","description":"\u003cp\u003eBR InterCity APT-U Ex-TS Development Vehicle Sc48204-977527 - Era 7 -Hornby- R4970\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":43587987308787,"sku":null,"price":52.24,"currency_code":"GBP","in_stock":true}]},{"product_id":"tt4023","title":"BR Intercity Mk3 Tourist Standard Open E42063 - Era 7 -Hornby- TT4023","description":"\u003cp\u003eBR Intercity Mk3 Tourist Standard Open E42063 - Era 7 -Hornby- TT4023\u003c\/p\u003e","brand":"Hornby TT120","offers":[{"title":"Default Title","offer_id":44215568171251,"sku":null,"price":41.99,"currency_code":"GBP","in_stock":true}]},{"product_id":"tt4024","title":"BR Intercity Mk3 Tourist Guard Standard E44028 - Era 7 -Hornby- TT4024","description":"\u003cp\u003eBR Intercity Mk3 Tourist Guard Standard E44028 - Era 7 -Hornby- TT4024\u003c\/p\u003e","brand":"Hornby TT120","offers":[{"title":"Default Title","offer_id":44215568957683,"sku":null,"price":41.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/files\/htt4024.jpg?v=1779203856"},{"product_id":"r60250","title":"27T Iron Ore Tippler Wagon, British Rail - Era 7 - Hornby R60250","description":"\u003cp\u003e27T Iron Ore Tippler Wagon, British Rail - Era 7\u003c\/p\u003e","brand":"Hornby","offers":[{"title":"Default Title","offer_id":44215655629043,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0355\/2729\/5116\/products\/R60250_BR_iron_ore_tippler.jpg?v=1745497905"}],"url":"https:\/\/www.thelocoshop.co.uk\/collections\/era-7\/oo-gauge.oembed","provider":"The Loco Shop","version":"1.0","type":"link"}