The Apollo flights used NM on their screens for nautical mile. [pic (right-most screen)] https://cdn.arstechnica.net/wp-content/uploads/2012/10/liebergot-eidop

The Apollo flights used NM on their screens for nautical mile. [pic (right-most screen)] https://cdn.arstechnica.net/wp-content/uploads/2012/10/liebergot-eidophor1.jpg https://cdn.arstechnica.net/wp-content/uploads/2012/10/liebe... [article] https://arstechnica.com/science/2019/12/apollo-flight-controller-101-every-console-explained/ https://arstechnica.com/science/2019/12/apollo-flight-contro...