View source for Proto:87

{{Infobox model rail scale
| name =Proto:87
| image_filename =
| image_caption =
| scale =3.5 mm to 1 foot
| standard =Proto:87<ref>{{cite web |url=http://www.proto87.org/ |title=Home |website=proto87.org}}</ref>
| ratio =1:87.1
| gauge ={{RailGauge|16.5mm}}<ref>{{Cite web |url=http://www.proto87.org/p87/standards/standards.gif |title=Archived copy |access-date=2013-07-07 |archive-date=2007-09-19 |archive-url=https://web.archive.org/web/20070919175530/http://www.proto87.org/p87/standards/standards.gif |url-status=dead }}</ref>
| prototype_gauge ={{RailGauge|sg|allk=on}}
}}
'''Proto:87''' is a [[model railroad]] special interest group founded in 1978, providing a finescale alternative to traditional [[HO scale|HO gauge]].
Due to manufacturing restrictions and considerations such as durability, ease of operation and price, most model railroad products feature significant compromises that inhibit their viability as accurate [[scale models]] of their prototypes. The most visible of these are wheels and [[Rail tracks|track]], which can be significantly thicker than the prototype. The desirability of realistic wheel dimensions among some modelers helped spawn the Proto:87 movement, which is backed by many manufacturers such as Northwest Short Line.<ref name="Coleman2008">{{cite book|first = Matt | last = Coleman|title=The Model Railroader's Guide to Logging Railroads|url=https://books.google.com/books?id=4rxovTxv-tcC&pg=PA76|year=2008|publisher=Kalmbach Publishing, Co.|isbn=978-0-89024-702-0|page=76}}</ref>
Proto:87 has its own online store that offers various components and kits to help correct these scale inaccuracies, such as kits for assembling accurate, to-scale trackwork and [[Railroad switch|switches]], finescale wheels for [[locomotive]]s and [[rolling stock]], etc.
Similarly, the Proto:48 group is dedicated to finescale modeling in [[O scale]].<ref name="Volhard1999">{{cite book|first=Jim | last = Volhard|title=Maintaining and Repairing Your Scale Model Trains|url=https://books.google.com/books?id=rnO8g-_AgOUC&pg=PA44|year=1999|publisher=Kalmbach Publishing, Co.|isbn=978-0-89024-324-4|page=44}}</ref>
==See also==
* [[Rail transport modelling scales]]
* [[Model railway scales]]
==References==
<references/>
==External links==
*[http://www.proto87.org/ Proto:87 SIG Official website]
*[http://www.club-proto-87.com/ Club Proto 87] {{in lang|fr}}
*[http://proto87.team.pagesperso-orange.fr/index.html Proto:87 International Team] {{in lang|fr}}
{{H0 scale}}
[[Category:Model railroad scales]]
{{Model-rail-stub}}