HO Module Standards

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Layout Set-up SOP & Tool List

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Helping Your Rolling Stock Behave Properly

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Reference documents (each opens a separate .pdf file)
 * Module Inspection Checklist - MARRS  Form 1 (two pages)
                                   * Rolling Stock Inspection - MARRS  Form 2 (two pages)
                      * Bad Order Car Report - MARRS  Form 3
                         * Car Weights (4 pages)
                            * HO Scale Speed
                               * Equivalent Charts - inches to millimeters, HO scale inches, drill bit sizes, wire diameters (6 pages)
                                                             * Wiring diagrams:     viewed from ABOVE     viewed from BENEATH
                                          * Yard Track Plan

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MARRS  Branchline Specificatons

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