--- product_id: 44413162 title: "Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting" brand: "ferocious viking" price: "44 kr" currency: DKK in_stock: false reviews_count: 7 url: https://www.desertcart.dk/products/44413162-parallel-ruler-for-navigation-on-sea-charts-with-ruler-protractor store_origin: DK region: Denmark --- # Non-magnetic brass & aluminum build 17.75-inch precision length 180° protractor scale for exact bearings Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting **Brand:** ferocious viking **Price:** 44 kr **Availability:** ❌ Out of Stock ## Summary > ⚓ Navigate like a pro with heritage and precision in your hands! ## Quick Answers - **What is this?** Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting by ferocious viking - **How much does it cost?** 44 kr with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/44413162-parallel-ruler-for-navigation-on-sea-charts-with-ruler-protractor) ## Best For - ferocious viking enthusiasts ## Why This Product - Trusted ferocious viking brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Crystal Clear Accuracy:** Transparent acrylic blades with bevelled edges ensure flawless reading and alignment. - • **Timeless Nautical Precision:** Master your chart plotting with a tool trusted since 1584. - • **Essential for Modern Mariners:** Perfect complement to GPS, empowering confident course plotting on any vessel. - • **Sleek & Durable Craftsmanship:** Polished aluminum hinges and elegant brass handles for lasting style and strength. - • **Multi-Functional Navigation Aid:** Integrated metric ruler and protractor scale for seamless distance and bearing measurements. ## Overview The Ferocious Viking Parallel Ruler is a 17.75-inch navigation tool crafted from transparent acrylic, polished aluminum, and brass. Featuring a 180-degree protractor scale and metric ruler, it enables precise plotting on nautical charts. Non-magnetic metal parts ensure reliability at sea, making it an indispensable instrument for captains, navigators, and professionals who value traditional accuracy alongside modern GPS. ## Description This Parallel Ruler allows the navigator to transfer GPS positions easily and precisely to nautical charts. Besides being an aesthetic tool in itself with its aluminum hinges and brass handles, it is invaluable for plotting waypoints. It has a metric scale along one edge to allow for taking distances and protractor marking on the other edge for plotting bearings. The parallel ruler was invented in 1584 and was in common use by the 18th century. Captain Fields improved the design by adding the protractor-style scale to the upper edge of one rule, and it is this design that is being used on this parallel ruler here. The parallel ruler can be equally used by draftsmen, surveyors, cartographers, architects and navigators to draw accurate parallel liles. It can be used by aligning one edge of the ruler with a base line and, while holding down that side of the ruler, move the other side to the location of the new line. If the new line cannot be reached in one step, then it may be necessary to "walk" the ruler across the page to the destination. ## Features - Easy-to-use Parallel Ruler, convenient versatile tool with blades made of durable acrylic plastic, with esthetic hinges of solid polished aluminium and brass, and with elegant brass handles. The blades are milled with bevelled edges and all metallic parts are non magnetic. - You can use the Parallel Ruler for navigation on you boat, ship, yacht or fishing vessel. Whenever you need to plot a course on your chart this trusted tool will be of invaluable assistance. It comes from a long tradition of navigation tools. - This navigation parallel ruler contains a convenient protractor scale with markings covering 180 degrees, transparent blades, that allow for easier reading. Metric ruler along one edge. Total length 17 3/4 in. - This is essentially a Captain Fields improved Parallel Ruler, that for hundreds of years have been used by Sea Captains to plot direction on nautical charts. Even today, with GPS navigation tools everywhere, any Seaman worth his salt knows how to plot a course using a parallel ruler. It is an essential tool for plotting in navigation and as any nautical chart tool is cherished by those skilled in its use. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 18.19 x 3.39 x 1.1 inches | | Package Weight | 0.3 Kilograms | | Brand Name | Ferocious Viking | | Material | Acrylic, Aluminum, Brass, Plastic | | Manufacturer | Ferocious Viking Products | | Part Number | JF17027901 | | Style | Brass,Elegant | ## Product Details - **Material:** Acrylic, Aluminum, Brass, Plastic - **Brand:** Ferocious Viking - **Style:** Brass,Elegant - **UPC:** 713356987566 ## Images ![Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting - Image 1](https://m.media-amazon.com/images/I/91nhV-GFX2L.jpg) ![Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting - Image 2](https://m.media-amazon.com/images/I/91G4JRmfsBL.jpg) ![Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting - Image 3](https://m.media-amazon.com/images/I/81PYoIcbdJL.jpg) ![Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting - Image 4](https://m.media-amazon.com/images/I/81qDBCRgfDL.jpg) ![Parallel Ruler for Navigation on Sea Charts with Ruler and Protractor Scales and Brass Buttons, Aluminium Links and Transparent Acrylic Plastic for Accurate Chart Plotting - Image 5](https://m.media-amazon.com/images/I/814m9FhRdgL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Five Stars *by S***C on September 14, 2017* As described and packaged well. A little stiff at first but is loosening up. ### ⭐⭐⭐⭐ Quality product. My only concern is there are no ... *by S***R on August 6, 2017* Quality product. My only concern is there are no adjustable friction locks so it is a bit stiff when new- not sure if it will wear to loose with use. The numbers are not engraved in, only "painted" on the bottom surface. ### ⭐⭐⭐⭐⭐ Five Stars *by J***T on December 1, 2017* very good product, great quality --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/44413162-parallel-ruler-for-navigation-on-sea-charts-with-ruler-protractor](https://www.desertcart.dk/products/44413162-parallel-ruler-for-navigation-on-sea-charts-with-ruler-protractor) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-22*