KC-135 Stratotankers (August 28, 1963)

On August 28, 1963, two U.S. Air Force KC-135 Stratotanker aircraft vanished without warning while flying a routine refueling mission near the Bermuda Triangle. The planes, carrying 11 crew members total, disappeared from radar simultaneously despite being separated by 800 feet altitude. Search teams found scattered wreckage but noted two distinct debris fields 160 miles apart—fueling speculation about separate crash events. While the military attributed the incident to mid-air collision, the unusual debris distribution and lack of definitive explanations have kept this case prominent in Bermuda Triangle lore. The mystery remains unresolved six decades later.