The 20”/508mm straight edge, nautical mile scales rule, is meticulously crafted from 5mm thick clear acrylic and designed with navigators, professionals, and hobbyists in mind.
This high-quality bevelled edge rule features essential nautical mile scales of 1:50,000 and 1:1,000,000, offering versatility and precision for a wide range of mapping and navigational tasks. With its durable construction, clear visibility, and practical design, this rule is an indispensable tool for anyone working with charts, maps, or technical drawings.
Durable Clear Acrylic Construction
Built from robust 5mm thick clear acrylic, this straight edge rule is designed to withstand the rigours of daily use, whether in the field or in the office. The thickness of the acrylic provides both strength and stability, ensuring that the rule won’t warp, bend, or break easily, even under regular or heavy-duty use. Its clear acrylic material also allows for excellent visibility, making it easier to see the details of the map or chart underneath while taking precise measurements.
The high level of transparency makes this rule ideal for navigational tasks, as it allows users to overlay the tool onto charts and still see the critical details below. This ensures accuracy when measuring distances or plotting courses, reducing errors and enhancing efficiency in both professional and recreational settings.
Bevelled Edge for Precision
One of the key features of this straight edge rule is its bevelled edge, designed to ensure more accurate measurements and reduce parallax errors. The bevelled edge provides a smooth, precise surface for drawing lines or taking measurements, which is especially useful in tasks requiring pinpoint accuracy, such as nautical chart plotting or technical drawing. The bevel design also allows for better interaction with the surface of the map or chart, ensuring minimal distortion or misreading of distances.
Whether you’re navigating coastal waters or planning a large-scale voyage, the precision offered by the bevelled edge rule makes it an essential tool for both professionals and enthusiasts who need reliable, accurate measurements.
Dual Nautical Mile Scales
This straight edge rule is equipped with two critical nautical mile scales: 1:50,000 and 1:1,000,000. These scales are designed to meet the needs of both detailed local navigation and broader, long-distance charting. The 1:50,000 scale is ideal for more detailed, close-up mapping, making it perfect for coastal navigation, where precision is key. Meanwhile, the 1:1,000,000 scale is suited for larger, less detailed maps, allowing for quick calculations over longer distances.
By including both scales, this rule provides flexibility for a variety of tasks, ensuring that users can switch between different levels of detail without needing multiple tools. Whether plotting a route on a coastal chart or planning a large-scale voyage, the dual scales on this straight edge rule offer the precision and versatility required for accurate navigation.
Practical Design Features
In addition to its functional design and precision features, this 20”/508mm straight edge rule is equipped with hanging holes at both ends. These holes allow for easy storage, ensuring that the rule can be hung on hooks or placed securely in a navigation station or office workspace. The hanging holes also make it easy to retrieve the rule quickly when needed, ensuring it’s always within reach for any task.
Ideal for Navigation and Charting
This straight-edge rule is an essential tool for anyone involved in navigation, map reading, or technical drawing. Its durable construction, combined with the precision of its bevelled edge and dual nautical mile scales, makes it suitable for both professionals and enthusiasts. Whether you’re a seasoned mariner, a student studying navigation, or someone who enjoys outdoor adventures, this rule offers the accuracy and reliability needed to get the job done efficiently.
