Mainline Railworks HOn3 Starter Loop Set

The Mainline Railworks HOn3 Starter Loop Set is the easiest way to begin building and operating a narrow gauge railroad. Designed for quick assembly and reliable operation, this complete sectional track set allows modelers to create a functioning HOn3 loop layout in a short amount of time—perfect for tabletop operation, temporary setups, or first-time narrow gauge builders.

🚂 Why This Matters

Starting in HOn3 can feel intimidating, especially for modelers unfamiliar with narrow gauge track planning. Most starter track packs give you just enough to form a loop—but not enough flexibility to grow it into a realistic layout. The included 2 FREE straight sections give you immediate expansion capability, allowing you to transition from a basic circle into a more operational oval or future siding layout.

🏔 Perfect For

• First-time HOn3 modelers
• Temporary tabletop and floor layouts
• Holiday train setups
• Portable layouts and demonstrations
• Testing locomotives and rolling stock
• Expanding into larger narrow gauge systems

📦 What’s Included

• Curved track sections
• Straight track sections
• Feeder track section
• Complete loop configuration
• 2 FREE additional straight track sections (included in this set)

🔧 Key Features

• Fast and easy assembly
• Precision sectional geometry
• Expandable layout design
• Reliable narrow gauge operation
• Compact footprint ideal for tables and smaller spaces

⚙️ Compatibility

• Compatible 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
• Suitable for both temporary tabletop layouts and permanent installations

➕ Expand Your Layout

The Starter Loop Set is designed as the foundation for future expansion. Add additional straights, curves, and future turnout sections to create larger and more complex narrow gauge operations over time.

⚠️ Builder Tip

This set is an excellent way to experiment with HOn3 before committing to a permanent layout build.