The Friendship of European railway modellers (Шаблон:Lang-de, FREMO) is a modular rail transport modelling standard. Individual track and scenery modules are built to a common standard and are joined together to make larger model railway layouts.
The FREMO standards were created following a meeting in Europe in 1981.[1]
Single track modules are Шаблон:Convert wide, of variable length, viewable from both sides. Each module comes with adjustable legs, to create a uniform top-of-rail height of Шаблон:Convert above floor level. Modules are physically joined together using three Шаблон:Convert holes and hand-tightened M8 bolts with washers and wingnuts. The electrical inter-connection uses two Banana connectors per track bus, over which Digital Command Control (DCC) signalling running at 14 volts is used for train control. Track uses Code 83 rails (Шаблон:Convert high), with a minimum curve radius of Шаблон:Convert; representing Шаблон:Convert at 1:87) and fixed track centre-line spacing of Шаблон:Convert; representing Шаблон:Convert separation at 1:87 scale).[2]
Some general aspects, such as rigid construction of modules, are derived from the Шаблон:Lang NEM 900 standards published by MOROP.[3]
In 1995, the North American Free-mo standards were based on those of FREMO, with a number of changes made.[4][1]
In 1994 Chris Palomarez and Art Armstrong at the San Luis Obispo Model Railroad Club (SLOMRC) developed the Free-mo Standard based on the European FREMO concept. [5]
N-scale variant
In 2004, the traditional Free-mo standard was adapted for N scale (1:160).[6] It uses Code 55 rail at a nominal height of Шаблон:Convert. Curves should not have a radius of less than Шаблон:Convert on the main line and use turnouts sized Шаблон:Abbr 6 or larger.
NMRA British Region Freemo Standard
In 2011 the NMRA British Region released a set of standards called Freemo, Recommended Specifications For HO Scale Modules.[7]