3 ms·
Those systems are not new, the SR-71 used the same principle, see e.g. https://www.iancollmceachern.com/single-post/unveiling-the-secrets-of-the-sr-71-blackbird
by ck45 1y ago
Those systems are not new, the SR-71 used the same principle, see e.g. https://www.iancollmceachern.com/single-post/unveiling-the-secrets-of-the-sr-71-blackbird-astro-nav-system https://www.iancollmceachern.com/single-post/unveiling-the-s...
- blacklion 1y agoIt is exactly what I mean. That "early" (cold war era and maybe later) spy planes, strategic bombers, cruise missiles and even ICBMs used stars to navigate. And, oh, yes, all ships before last century, too, of course. So it is more spiral than circle :)
- defrost 1y agoand post WWII landrovers, the ships of the desert, pre GPS, used star fixes to layout grid roads for the world's largest test range*. https://www.beadelltours.com.au/lb_survey.html https://www.beadelltours.com.au/lb_survey.html * "the largest land-based test range in the western world" https://en.wikipedia.org/wiki/RAAF_Woomera_Range_Complex https://en.wikipedia.org/wiki/RAAF_Woomera_Range_Complex
- nickspacek 1y agoNeat, 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...