Gee or Shoran hyperbolic navigation lattice over France.Allies installed electronic navigation systems to guide bombers.Adapted to hydrographic survey needs at end of war
3/20/2019 10:37:38 AM
Date: 1944
Credit: Colonel Robert A. Hobbs, USAF (ret.)
Location: France, Eastern
Subject: Charting
Subject: Navigation
Subject: Electronic
Subject: HF and MF Systems