NAVBOYS NAVIGATION RULER FOR GLIDER PILOTS

The first of its kind - introducing the perfect navigational ruler for glider pilots!

Perfect for marking your task onto your aviation chart, featuring a 1:500,000km and 1:250,000km as the primary scales. No other aviation ruler does this, which is why this is the best ruler for us glider pilots using kilometres as our units for distance!

The ruler is 12 inches in length making it easy to fit any flight bags.

Also features a 1:500,000nm and 1:250,000nm scale on the internal scales, so can still be used to judge distance in nautical miles for describing your position to air traffic controllers.