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• 12:49, 18 January 2023 Marcluer talk contribs created page Projects:EASA PPL/Navigation (Created page with "* Units: ** 1NM = 1852m ** 1NM = 6080ft * Earth: ** Earth tilt angle: 23,44° ** Rhumb line: cutting all meridians at the same angle ** circumference: 21600 NM / 40000km * Sun: ** rise above the horizon: top and low latitude at summer and winter: 66° ** be at 90° above horizon: 23° ** civil twilight: sun 6° below horizon * Seasons: ** Due to inclination of the polar axis with the ecliptic plane *Time: **Twilight duration: longer at high latitudes *Magnetic: **CDMV...")