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Portland Course Plotter nautical chart – Boat Books | Mapworld

Portland Course Plotter

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Trusted by Instructors. Designed for Precision. Built for the Sea.

The Portland Course Plotter is a globally respected navigation aid used by professional mariners, sailing schools, and RYA instructors alike. Whether you're charting a coastal passage or teaching seamanship, this essential plotting tool ensures accurate, efficient course setting every time.


Key Features

🔵 Bold Directional Arrow
A bright blue directional arrow clearly indicates course bearing—preventing accidental reciprocal plotting errors, even under pressure or low light.

📏 Graduated Edges for Speed & Tides
Both edges of the plotter are precisely graduated, allowing you to calculate tidal set, drift, and boat speed with ease.

🗺️ Fixed Grid for GPS Latitude Plotting
The transparent base features an integrated grid system, making it easy to plot latitude directly from your GPS or chart coordinates with confidence.

📘 Easy-to-Follow Instructions Included
Comes with a comprehensive instruction guide—ideal for beginners and a quick refresher for seasoned navigators.

🌍 Globally Trusted by RYA & Shore-Based Instructors
Used worldwide in both practical and classroom-based training, the Portland Plotter is a staple of maritime education and recreational sailing alike.


🧩 Perfect For:

✔️ Sailing students & RYA course participants
✔️ Cruising yacht skippers & recreational mariners
✔️ Naval cadets & instructors
✔️ Anyone learning or teaching traditional navigation


🛒 Add to Cart Now – Navigate with precision using the plotter trusted by professionals across the globe.


Frequently Asked Questions

What is the Portland Course Plotter 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 Portland Course Plotter 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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