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Welcome to the ScaleSeven Group
What is ScaleSeven?
S7 railway modellers work to a scale of 1:43.5, 7mm to 1ft, using a true-to-scale standard gauge of 33mm, and a wheel profile which matches closely the real thing. ScaleSeven modellers achieve smooth running on more realistic permanent way.
Working to S7 standards is no more difficult than working to any other finescale gauge or standard. If you care about the appearance and running qualities of your models, currently model to a smaller scale, and are considering moving up to 7mm scale modelling, then take a look at what working to S7 standards can do for you.
The Group was formed in 1989 with the intention of making life easier for 7mm scale modellers wishing to use track and wheel standards derived from the prototype. For the full story of the Group’s foundations, click here.
If you are new to 7mm railway modelling, or perhaps are just looking for more information before taking the plunge in the ‘senior scale’, please visit the About S7 section for more information about S7 standards and the Group as a whole. You may also like to visit our Showcase for inspiration, or see a recent national Group meeting report. If you want to see what S7 is like “in the flesh”, our Area Groups always welcome new faces, or visit the Diary page to see where S7 layouts are being exhibited to the public.
What’s in this site?
- Joining In Download a sample newsletter.
- Area Groups Information about local S7 activities.
- Diary What’s on and where, with S7 in mind.
- Showcase Images of models from S7 members.
- Standards The published S7 standards.
- Members Only Value-added information for members.
- External Links Model railway-related web sites.
Background information
ScaleSeven is a recognised scale/gauge standard within the Gauge O Guild. The Group is an independent organisation with its own steering committee. Membership of the S7 Group does not require membership of the Guild, or vice versa.
The Group recently commissioned a major 7mm scale manufacturer to produce a ready-to-roll locomotive wheel to S7 profile, funded by member donations. The Group is currently looking to expand the range to encompass several wheel designs using the same diameter tyre, and plans are under way for different diameters. The wheels are sold only by the Group Stores, and are not available outside the Group.
