This aviation plotter features a double-sided design for easy scale reading on both sides. It includes sectional scale 1:500000, scale 1:1000000, and terminal area scale 1:250000. Crafted with fine workmanship, this flight plotter uses special manufacturing technology to ensure the markings and numbers remain clear and durable over time. The navigation plotter is calibrated to the standard ratio of statute miles to nautical miles, providing accurate and precise measurements for determining flight distance and direction. This fixed plotting ruler is ideal for aviation student training, private pilot training, search and rescue operations, and crew training. It is also suitable for flight instructors as a teaching tool for plotting and measuring distances. Made from durable plastic material, the slide rule is resistant to breakage and deformation, and can withstand high temperatures. Material: Plastic Color: As shown Package Contents: 1 x Flight Plotter Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.