High Quality Content by WIKIPEDIA articles! The Norden bombsight was a bombsight used by the United States Army Air Forces during World War II, and the United States Air Force in the Korean and the Vietnam Wars to aid the crew of bomber aircraft in dropping bombs accurately. Its operation was a closely guarded secret of World War II; however, Herman Lang, a German spy working at the factory, leaked the design to the Abwehr in 1938. The Carl Zeiss Lotfernrohr 7, or Lotfe 7, widely deployed by the Luftwaffe starting in 1942, was an advanced mechanical system quite similar to the original Norden bombsight.

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