Key Features
- High-transparency acrylic construction for clear chart visibility
- Precision-engraved scale markings for accurate course and bearing transfer
- Corrosion-resistant metal connecting bars for lasting alignment
- Beveled edges for clean, precise line drawing
- Lightweight yet robust design suitable for bridge and classroom use
Technical Specifications
| Specification | Details |
|---|---|
| Material | Transparent acrylic |
| Connecting Bars | Brass / Stainless steel |
| Scale Markings | Engraved, metric and imperial (mm/inch) |
| Length | 12 inches (30 cm) – standard size |
| Width | 2 inches (5 cm) |
| Thickness | 3 mm |
| IMPA Code | 371001 |
| Category | IMPA 37 – Nautical Equipment |
Frequently Asked Questions
What are parallel rules used for in navigation?
Parallel rules are used to transfer a course or bearing from one point on a nautical chart to another while maintaining the same angle. They are essential for traditional chart plotting and passage planning.
Are these parallel rules suitable for professional ship bridge use?
Yes, they are made of durable acrylic with corrosion-resistant metal bars, designed to withstand the conditions on a ship's bridge and provide reliable precision for professional navigators.
What sizes are available?
Our parallel rules are offered in a standard 12-inch (30 cm) length. Custom sizes may be available upon request for bulk orders.
How do I clean and maintain these parallel rules?
Clean with a soft, damp cloth and mild soap. Avoid abrasive cleaners that may scratch the acrylic. Store flat in a dry place to prevent warping.
Inquire About This Product
Contact us for pricing, availability, and bulk orders:
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