Basic HO Module Standards (revised 20210608 edition)

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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)
​  * Wiring diagrams:     viewed from ABOVE     viewed from BENEATH
                  * Module Inspection Checklist - MARRS  Form 1 (2 pages)
                  * Rolling Stock Inspection - MARRS  Form 2 (2 pages)
                  * Bad Order Car Report - MARRS  Form 3
                     
                  * Operating Rules & Yard Etiquette (7 pages)
                  * Yard Track Plan
                            
                             * Car Weights (4 pages)
                  * Equivalent Charts - inches to millimeters, HO scale inches, drill bit sizes, wire diameters (6 pages)
                  * HO Scale Speed
                                                               

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MARRS  Branchline Specificatons

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