Neat, this latest implementation seems a little more compact than the SR-71's, but it's hard to tell. https://timeandnavigation.si.edu/multimedia-asset/nortron

Neat, this latest implementation seems a little more compact than the SR-71's, but it's hard to tell. https://timeandnavigation.si.edu/multimedia-asset/nortronics-nas-14v2-astroinertial-navigation-system https://timeandnavigation.si.edu/multimedia-asset/nortronics...