It’s kind of sad Northstar didn’t keep up with the times. They had the first loran C that would read out course and speed. Their Loran C for aircraft was state of the art easy to use and the staple for many years. Seems like when GPS came out they just dropped the ball. Having started out with loran A when I was a kid it’s amazing the advances in navigation. So simple now a caveman with a phone can do it