Ivan Chisov
Ivan Mikhailovich Chisov (Russian: Иван Михайлович Чиcсов, Ukrainian: Іван Михайлович Чиссов; 1916–1986) was a Soviet Air Force lieutenant who survived a fall of approximately 7,000 meters (23,000 feet). == Biography == Lieutenant Colonel Chisov was a navigator on a Soviet Air Force Ilyushin Il-4 bomber.