My grandfather worked first hand with Kelly Johnson during the development of the Blackbird. He was brought on because he had experience with another supersonic aircraft, the B58. He was an Air Force navigator and had experience in the B36, B47, B58, and SR71. Coolest, and most humble aviator I've ever met.
captaineegee t1_j9h0vlp wrote
Reply to 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
My grandfather worked first hand with Kelly Johnson during the development of the Blackbird. He was brought on because he had experience with another supersonic aircraft, the B58. He was an Air Force navigator and had experience in the B36, B47, B58, and SR71. Coolest, and most humble aviator I've ever met.