5″/127mm square Douglas Protractor, a precision-crafted tool designed for navigators, students, and professionals who require accuracy and versatility.
This combined protractor and parallel rule is made from 1mm thick clear acrylic and features a 5″/127mm square design, offering a compact yet highly functional tool for a variety of navigational and mapping tasks. The Douglas Protractor, also known as the ‘Portland’ Combined Protractor and Parallel Rule, comes with a matte varnish printed on both sides, allowing for easy pencil markings. Whether you’re working in the field, classroom, or office, this tool offers the reliability and convenience you need for accurate measurements and plotting.
Compact and Durable Acrylic Construction
The 5″/127mm square Douglas Protractor is constructed from 1mm thick clear acrylic, providing both durability and portability. The thin profile of the acrylic ensures that the protractor is lightweight and easy to handle, making it ideal for on-the-go use without compromising on strength. Its clear design allows users to view underlying maps, charts, or drawings while still taking precise measurements, ensuring no details are obscured during use.
This sturdy acrylic construction also makes the protractor resistant to wear and tear, allowing it to withstand regular use in demanding environments. Whether you’re navigating coastal waters, teaching students in a classroom, or working on technical drawings, this protractor is built to last while maintaining a high level of precision.
Combined Protractor and Parallel Rule
One of the key features of the Douglas Protractor is its dual functionality as both a protractor and a parallel rule. The protractor offers clear and easy-to-read angular measurements, allowing users to quickly determine angles for navigation or technical tasks. With its square shape, it provides a stable and versatile platform for plotting bearings or charting courses on nautical charts.
Additionally, the parallel rule functionality allows users to draw parallel lines with ease, making it an essential tool for anyone needing to plot accurate courses or transfer bearings across maps. This combination of protractor and parallel rule in one compact tool enhances efficiency, eliminating the need for separate instruments and streamlining the navigation process.
Matte Varnish for Pencil Markings
The Douglas Protractor is designed with practicality in mind, featuring a matte varnish printed on both sides. This matte finish allows users to make temporary markings with a pencil, enhancing its functionality in real-world applications. Whether you’re plotting a course on a chart or taking notes during a lesson, the ability to write directly on the surface of the protractor makes it easy to work efficiently and accurately.
Once your markings are no longer needed, they can be easily erased, allowing the protractor to be reused repeatedly. This feature makes the Douglas Protractor a versatile tool for navigators, students, and professionals who need to adapt quickly to changing information or conditions.
Ideal for Navigation and Map Reading
The 5″/127mm square Douglas Protractor is perfect for those involved in navigation, map reading, and technical drawing. Its compact size and dual functionality make it a go-to tool for plotting bearings, measuring angles, and drawing parallel lines. Whether you’re working on a nautical chart, studying navigation, or conducting technical planning, this protractor delivers the precision and convenience required for a wide range of tasks.
Thanks to its matte varnish and pencil-marking capability, it’s also a practical tool for teaching and training environments, enabling students to practice plotting and map reading skills with ease. Its simple, intuitive design ensures that even those new to navigation or technical drawing can use it effectively.
