Anonymous ID: 3a6674 April 27, 2020, 7:43 a.m. No.8936762   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>8936730

Yes. I'm a pilot and wrote code used by navigation systems in the late 80s. Spherical geometry was most definitely used with some minor variations to account for the more egg-shaped characteristics of our planet.