17 Inch Marine Navigation Parallel Ruler with Clear Scale for Chart Mapping

Professional Marine Navigation Parallel Ruler This 45 cm parallel ruler has been designed for professional captains, maritime enthusiasts and students of navigation who require dependable accuracy when working with charts. The clear scale markings allow for straightforward reading of distances and angles, while the solid arm construction provides the stability needed for precise measurement work on the chart table. Precision and Stability The 17-inch parallel ruler offers a stable platform for measuring distances and angles directly on nautical charts. Its solid arm design ensures the ruler remains firmly in place during use, reducing the risk of slippage that can compromise measurement accuracy. The transparent body allows you to see the chart details beneath, making it easier to align the ruler with your plotted course or position. Practical Design for Chart Work The multifunctional parallel ruler is suited to a range of chart-based tasks, from plotting courses to measuring bearings. The clearly etched scale remains legible even under demanding conditions, supporting accurate readings time after time. Its robust construction is built to withstand regular use in maritime environments, making it a practical addition to any navigator's toolkit. Whether you are working through navigation exercises as a student or plotting a passage as an experienced mariner, this parallel ruler offers the precision and durability required for confident chart work.