inch7706 t1_j9htkq3 wrote on February 22, 2023 at 1:55 AM Reply to comment by DerisiveGibe in TIL The Lockheed SR-71 Blackbird used an Astro-inertial Navigation System to track Stars and determine its position and altitude. At Mach 3, the navigation system was accurate enough to limit drift to 1,000 feet (300 meters) off course. by shamelessterminator Always stop to read this one. Permalink Parent 7
inch7706 t1_j9htkq3 wrote
Reply to comment by DerisiveGibe in TIL The Lockheed SR-71 Blackbird used an Astro-inertial Navigation System to track Stars and determine its position and altitude. At Mach 3, the navigation system was accurate enough to limit drift to 1,000 feet (300 meters) off course. by shamelessterminator
Always stop to read this one.