{"product_id":"mainline-railworks-hon3-loop-with-inner-passing-track-starter-set","title":"Mainline Railworks HOn3 Loop with Inner Passing Track Starter Set","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMainline Railworks HOn3 Loop with Inner Passing Track Set\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis complete set creates a continuous loop with an inner passing siding—ideal for running two trains, staging, or simple operations on a compact HOn3 layout. Built around the popular 19″ radius geometry, the set uses Mainline Railworks Code 80 sectional track and includes a matching left- and right-hand switch pair that drop directly into the 19A curve footprint.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhat’s Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e22 × 19″ Radius Curve sections\u003c\/li\u003e\n\u003cli\u003e1 × Left-Hand Switch\u003c\/li\u003e\n\u003cli\u003e1 × Right-Hand Switch\u003c\/li\u003e\n\u003cli\u003e4 × 9\" Straight sections\u003c\/li\u003e\n\u003cli\u003e1 × Power Feeder section\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e+ 3 9\" Free Straight sections\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e🚂 \u003cstrong\u003eWhy This Matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA basic loop gets trains running, but adding an inner passing track immediately multiplies operational possibilities. You can hold one train while another runs, stage equipment, or practice switching without needing extra space. Using the same 19A geometry throughout keeps everything aligned and reliable.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e🏔 \u003cstrong\u003ePerfect For\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eCompact tabletop and shelf layouts\u003c\/li\u003e\n\u003cli\u003eBeginner HOn3 starter systems\u003c\/li\u003e\n\u003cli\u003eTemporary or holiday setups\u003c\/li\u003e\n\u003cli\u003eModular and expandable railroads\u003c\/li\u003e\n\u003cli\u003eRunning two trains on a single continuous circuit\u003c\/li\u003e\n\u003cli\u003eTesting locomotives and rolling stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e🔧 \u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eComplete loop + inner passing siding configuration\u003c\/li\u003e\n\u003cli\u003e19″ radius curves for smooth, reliable operation\u003c\/li\u003e\n\u003cli\u003eLeft- and right-hand switches that are direct drop-in replacements for 19A curve sections\u003c\/li\u003e\n\u003cli\u003eCode 80 rail profile with joiners installed\u003c\/li\u003e\n\u003cli\u003eIncludes dedicated power feeder section\u003c\/li\u003e\n\u003cli\u003eThree free straight sections added for extra value and flexibility\u003c\/li\u003e\n\u003cli\u003ePrecision-matched sectional geometry for consistent alignment\u003c\/li\u003e\n\u003cli\u003eFully compatible with the rest of the Mainline Railworks HOn3 system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e⚙️ \u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eCompatible with Mainline Railworks HOn3 sectional track systems Integrates with Mainline Railworks HO\/HOn3 dual gauge track components Designed for use with HOn3 locomotives and rolling stock Compatible with legacy Blackstone ProTraxx HOn3 sectional track geometry Switches substitute perfectly into any layout designed for 19A curve sections Suitable for both temporary tabletop layouts and permanent installations\u003c\/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e➕ \u003cstrong\u003ePairs Well With\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eAdditional Mainline Railworks HOn3 Straight Track\u003c\/li\u003e\n\u003cli\u003eExtra Curve sections for larger ovals\u003c\/li\u003e\n\u003cli\u003eFeeder Track sections\u003c\/li\u003e\n\u003cli\u003eHOn3 Wood Bumpers\u003c\/li\u003e\n\u003cli\u003eFuture turnout expansions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e⚠️ \u003cstrong\u003eBuilder Tip\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe left- and right-hand switches are engineered as direct replacements for 19A curve sections, so the overall footprint of the loop remains unchanged when you add the passing track. Place the power feeder on a straight section for easiest wiring access.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp dir=\"auto\"\u003e🛠 \u003cstrong\u003eProduction Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe track sections in this set are hand-assembled on demand. Please allow the standard 2–4 week lead time for production and shipment prep.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cspan\u003eNeed\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ea\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003edifferent\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eradius,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eadditional\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003estraights,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eor\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ea\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003ecustom\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003econfiguration?\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eFeel\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efree\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eto\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003econtact\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eus!\u003c\/span\u003e\u003c\/p\u003e","brand":"3Dp Train","offers":[{"title":"Default Title","offer_id":48574185963765,"sku":null,"price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0343\/3717\/files\/H3Loopwithinnerpass.jpg?v=1786471997","url":"https:\/\/3dptrain.com\/products\/mainline-railworks-hon3-loop-with-inner-passing-track-starter-set","provider":"3Dp Train","version":"1.0","type":"link"}