Mainline Railworks On30 Curved Track

Mainline Railworks On30 Curved Track is designed specifically for On30 modelers who want both reliable operation and authentic narrow gauge appearance. Whether you're building a compact logging line, an industrial switching layout, or a sprawling mountain railroad, these precision sectional curves make layout planning simple while delivering smooth, dependable performance.

All curved track sections are sold individually, allowing you to build the exact radius, angle, and track plan your railroad requires.

🚂 Designed for On30

The right gauge is only half the story.

While On30 equipment runs on HO gauge track, most HO track is designed for standard gauge railroads. The smaller ties, tighter spacing, and narrower profile can look undersized beneath On30 locomotives and rolling stock.

Mainline Railworks On30 track is purpose-built for On30, featuring oversized ties, realistic spacing, and a wider track profile that better captures the appearance of real narrow gauge railroads. The result is a layout that not only operates reliably—but looks the way an On30 railroad should.

🚂 Why This Matters

Consistent curve geometry is essential for dependable operation. Properly matched sectional curves reduce derailments, simplify layout planning, and make it easy to expand your railroad as it grows.

Combined with the realistic proportions of purpose-built On30 track, you get a system designed to perform as well as it looks.

🏔 Perfect For

• Logging and mining railroads

• Industrial switching layouts

• Compact tabletop and shelf layouts

• Modular railroad systems

• Temporary display layouts

• Expanding existing On30 railroads

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🔧 Key Features

• Purpose-built On30 sectional track

• Sold individually for maximum layout flexibility

• Realistic narrow gauge tie size and spacing

• Wider track profile for improved appearance

• Precision-matched sectional geometry

• Reliable alignment and smooth operation

• Durable construction for repeated assembly and teardown

• Beginner-friendly while scalable for advanced layouts

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⚙️ Compatibility

• Compatible with Mainline Railworks On30 sectional track systems

• Designed specifically for On30 locomotives and rolling stock

• Integrates with Mainline Railworks straight, feeder, bumper, tunnel, and specialty track sections

• Suitable for temporary, modular, and permanent layouts

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📐 Curve Geometry Options

Mainline Railworks curved track is available in multiple radius and angle configurations, allowing you to create everything from compact industrial trackage to sweeping scenic railroads.

Available Angle Options

A — 22.5° Sections

• 16 sections complete a full circle

• Ideal for balanced loops and general-purpose layouts

B — 11.25° Sections

• 32 sections complete a full circle

• Perfect for smooth transitions and precise track planning

C — 45° Sections

• 8 sections complete a full circle

• Great for compact layouts and rapid assembly

📏 Radius Options

Choose from multiple radii to build:

• Compact shelf layouts

• Mining and logging branches

• Industrial switching districts

• Modular railroads

• Broad scenic mainlines

Smaller radii maximize limited space, while broader curves provide a more prototypical appearance and smoother operation.

➕ Pairs Well With

• Mainline Railworks Straight Track

• Feeder Track Sections

• Tunnel Track Sections

• Bumper Track Sections

• Starter Loop Sets

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⚠️ Builder Tip

For the smoothest operation, maintain a consistent curve radius through each turn. Mix angle options as needed for precise alignment while keeping the same radius for a clean, flowing appearance.

🛠 Custom Geometry Options

Need a specific radius or custom configuration? Mainline Railworks can produce additional curve geometries and specialty track sections for unique On30 layout requirements.

This 3d printed kit includes the following parts:

• 1x MR-O30C24Ap3-C100 (PLA (Black), 62.5 × 0.8 × 217.4 mm)
• 1x MR-O30C24Ap2-C100 (PLA Wood (Black Walnut), 83.1 × 1.9 × 240.6 mm)
• 1x MR-O30C24Ap1-C100 (PLA (Grey), 95.3 × 6.4 × 243.0 mm)
• 20x 100 (Micro Engineering Rail)