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G scale
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{{Short description|Model railroad gauge}} {{more footnotes|date=October 2017}} {{For|the musical scale|G major}} {{distinguish|K-index#G-scale}} {{Infobox model rail scale | name =G gauge | image_filename = | image_caption = | widthpx =300px | scale = | standard = {{plainlist| * [[G-scale LGB|LGB]] * [[Normen Europäischer Modellbahnen|NEM]] 010<ref name="nem-010-2014"/> * [[National Model Railroad Association|NMRA]] S-1.3<ref name="nmra-s1.3">{{cite report|url=https://www.nmra.org/sites/default/files/standards/sandrp/pdf/S-1.3%202009.07.pdf|series=[[National Model Railroad Association]] NMRA Standards|title=S-1.3 Standards for Scales with deep flanges|format=Standard|year=2009|page=1|quote=The term {{abbr|LS|Large Scales}} (Large Scales) is used to refer to range of scales developed to be able to be operated together, typically in an outdoors setting, for example a garden. LS models all use the same wheel and track profiles to facilitate interchange.}}</ref> * [[National Model Railroad Association|NMRA]] S-3.3<ref name="nmra-s3.3">{{cite report|url=https://www.nmra.org/sites/default/files/standards/sandrp/pdf/S-3.3%202010.02.24.pdf|series=[[National Model Railroad Association]] NMRA Standards|title=S-3.3 Standards, Guarded Track, for Deep Flanges|format=Standard|year=2010|page=2|quote=Large Scales … covers all common commercial scales running on {{abbr|LS|Large Scale}} 45mm gauge track (1:32, 1:29, 1:24, 1:22.5, and 1:20.3) without regard as to whether the trains are [[standard gauge|standard]] or [[narrow gauge]].}}</ref> }} | ratio =1:22.5 | gauge = {{convert|1.75|in|mm|round=5|abbr=on|order=flip}}<ref name="nem-010-2014">{{cite report|url=https://www.morop.eu/downloads/nem/de/nem010_d.pdf|series=[[Normen Europäischer Modellbahnen]] NEM|title=Maßstäbe, Nenngrößen, Spurweiten|trans-title=Scales, nominal sizes, gauges|number=NEM 010|format=Specification|date=2011|page=1|language=de|quote=[[1 gauge|I]]/IIm/IIIe/Vi/Vilp … Modell-Spurweiten 45mm {{citefrac|1|3|4}} Zoll. (6) Für große Spurweiten ist auch die Angabe in Zoll üblich.}}</ref> | prototype_gauge ={{RailGauge|1000mm|allk=on}} }} [[File:1-29 G-Scale Boxcar by Aristo-Craft on G-Gauge Track.jpg|thumb|1:29 G scale boxcar by Aristo-Craft on G gauge track]][[File:1,32 Scale 2-Bay Offset Hopper by Mainline America.jpg|thumb|1:32 scale 2-bay offset hopper by Mainline America]] '''G scale''' or '''G gauge''', also called '''large scale''' ({{convert|1+3/4|in|mm|round=5|abbr=in|order=flip|disp=or}}), is a track gauge for model railways which is often used for outdoor [[garden railway]]s because of its size and durability. G scale trains use a fixed track gauge of {{convert|1.75|in|mm|round=5|order=flip}} to accommodate a range of [[rail transport modelling scales]] between [[narrow gauge]] ([[SE scale|~1:13]]‒[[16 mm scale|1:19]]‒[[F scale (modelling)|1:20]]), [[metre gauge]] ([[LGB (trains)|1:22.5]]), [[Playmobil]] trains ([[1:24 scale|~1:24]]), and [[standard gauge]] (~1:29–[[1 gauge|1:32]]).<ref name="nmra-s3.3"/><ref name="nmra-s1.3"/> [[G-scale LGB]] ({{lang|de|Lehmann Groß Bahn}}, "Lehmann's Big Train") was introduced in 1968 by Ernst Paul Lehmann Patentwerk in Germany. LGB products were intended for indoor and outdoor use, so the "G" became interpreted as "garden scale". Most track is made of [[brass]] which can remain outside in all weather. Track can also be obtained in less expensive [[aluminium]] as well as oxidation-resistant, though more expensive, [[stainless steel]]. Like other scales, large scale is sometimes used for model trains that run indoors on a track mounted against the wall near the ceiling.
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