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Bow Dividers 200mm by Blundell Harling nautical chart – Boat Books | Mapworld

Bow Dividers 200mm by Blundell Harling

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Bow Dividers 200 mm — Blundell Harling

Solid Brass Single-Handed Divider • Traditional Chartwork Essential

The Blundell Harling Bow Dividers 200 mm are a classic navigator’s tool designed for accurate distance measurement and precise chart plotting. Traditionally styled and built with a solid brass body and stainless steel points, these dividers offer smooth, controlled adjustment with the reliability expected of professional chartwork instruments.

The longer 200 mm span makes them especially useful on larger charts, allowing distances to be stepped off quickly and accurately at the chart table.


🧭 Key Features

  • 📏 200 mm (approx. 8″) span — ideal for larger-scale nautical charts

  • ✨ Solid brass construction — durable, corrosion-resistant, and timeless in appearance

  • 🛠️ Stainless steel points — sharp, hard-wearing tips for precise marking

  • 🤲 Single-handed bow design — fine adjustment and easy one-hand operation

  • ⚓ Traditional form — mirrors the tools used by generations of navigators

  • 📦 Supplied in a blister pack — protected and ready for use


⚓ Built for Accurate Chartwork

The bow-style mechanism provides finer control than simple hinged dividers, making these particularly well suited to repetitive plotting, distance stepping, and instructional use. Brass construction ensures longevity in marine environments, while stainless steel points maintain accuracy over years of service.


📐 Specifications

Specification Details
Length 200 mm (approx. 8″)
Body Material Solid brass
Points Stainless steel
Adjustment Single-handed bow mechanism
Packaging Blister pack

🎯 Ideal For

  • ⛵ Sailors & offshore cruisers

  • 🧭 Navigation students & instructors

  • 📚 Chart plotting & passage planning

  • 🎁 Traditional nautical toolkits


The Blundell Harling Bow Dividers 200 mm combine traditional craftsmanship with dependable accuracy—an essential chartwork tool for navigators who value precision and durability.

Add a longer-reach divider to your chart kit and plot with confidence.


Frequently Asked Questions

What is the Bow Dividers 200mm by Blundell Harling used for?

This chart plotting instrument is used in marine and aerial navigation for measuring distances, plotting positions, and calculating bearings on nautical and aeronautical charts. It is an essential tool for accurate manual chart work.

Is this instrument compatible with standard nautical charts?

Yes, this instrument is designed for use with standard nautical charts. Check that the scale markings correspond to the chart scale you are working with for accurate measurements and bearings.

Is this instrument suitable for recreational or professional use?

Chart plotting instruments from Mapworld suit both recreational sailors and professional navigators. They are accurate, durable tools built for regular chart work in marine and aviation navigation.

Does Mapworld ship the Bow Dividers 200mm by Blundell Harling across Australia?

Yes, Mapworld ships Australia-wide. Standard shipping is a flat $7 rate, with free standard shipping on orders over $75. Express options are available at checkout. Most orders placed before 2pm AEST on business days are dispatched the same day.



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