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Proto:87
View on Wikipedia| Proto:87 | |
|---|---|
| Scale | 3.5 mm to 1 foot |
| Scale ratio | 1:87.1 |
| Standard(s) | Proto:87[1] |
| Model gauge | 16.5 mm (0.65 in)[2] |
| Prototype gauge | 1435 mm (4 ft 8+1⁄2 in) standard gauge |
Proto:87 is a set of model railroad engineering standards that resulted from a special interest group of that name founded in 1978, providing a fine-scale alternative to traditional HO scale.
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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 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.[3]
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 switches, finescale wheels for locomotives and rolling stock, etc.
Similarly, the Proto:48 group is dedicated to finescale modeling in O scale.[4]
See also
[edit]References
[edit]- ^ "Home". proto87.org.
- ^ "Archived copy". Archived from the original on 2007-09-19. Retrieved 2013-07-07.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ Coleman, Matt (2008). The Model Railroader's Guide to Logging Railroads. Kalmbach Publishing, Co. p. 76. ISBN 978-0-89024-702-0.
- ^ Volhard, Jim (1999). Maintaining and Repairing Your Scale Model Trains. Kalmbach Publishing, Co. p. 44. ISBN 978-0-89024-324-4.
External links
[edit]- Proto:87 SIG Official website
- Club Proto 87 (in French)
- Proto:87 International Team (in French)
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