S1.1 The objective of the Free-mo 2 Standard is to provide a platform for prototype modeling in a flexible, modular environment. Free-mo 2 modules not only provide track to operate realistic models, but also emphasize realistic, plausible scenery; realistic, reliable track work; and operations. Free-mo 2 was designed to and continues to push the envelope of modular model railroading to new heights. It goes beyond the traditional closed-loop set-up in creating a truly universal “free-form” modular design that is operations oriented and heavily influenced by prototype railroading.
S1.2 Interoperability: The Free-mo 2 Standard is a collection of requirements for building scale model railroad modules that can work together with little effort, even when they have never been assembled together before. The beauty of the Free-mo 2 standard is that it allows builders to replicate any freelance or prototype track-plan within your modules boundaries, yet can be combined for maximal interoperability with other Free-mo 2 modules.
S1.3 A Free-mo 2 module is a free-form module that conforms to the Free-mo 2 Standard as outlined below. (FAQ 1.5)
S1.3.1 A Free-mo 2 module can be any length and the end plates can be at any angle to each other.
S1.3.2 A Free-mo 2 module can be one section or a set of two or more sections that form a module.
S1.4 The Free-mo 2 Standard governs the ends of the module and basic track requirements. Most Free-mo 2 modules have two ends, but modules can have one, two, three, or more ends. (FAQ 1.1)
S1.5 Free-mo 2 modules fall into three basic categories:
S1.5.1 Mainline – Mainline modules represent Mainline rights-of-way. Mainline modules are designed with large radius curves and minimal grades.
S1.5.2 Branchline - Branchline modules represent Branchline rights-of-way. Branchline modules can have smaller radius curves and steeper grades than Mainline modules.
S1.5.3 Mini-mo - Mini-modules (mini-mos) have end plates that are narrower than the standard width end plate. With this in mind, a mini-mo can be Mainline or Branchline module, single-track or double-track. (S1.6)
S1.6 Mini-mo type modules are intended to be a Free-mo 2 subset and not replace or exclude an equivalent length standard module. Full width modules are generally more stable and should be used wherever possible.
