. >> pilot bill leff has been flying airplanes for more than four decades. flying is a great thing.f the airplane and it becomes an extension of you. and that's what's great about flying. it's just the freedom of it. >> he does more than just fly. he wows crowds across the globe, performing death-defying stunts at air shows. >> i do loops and rolls and things called cuban 8s which are two loops back to back. >> i will admit there are moments in that -- in his air show career that have scared me. he can lose his life doing this if he's not careful. >> leff's plane of choice is his 1943 t-6 texan. these historic planes were used during world war ii to train fighter pilots. >> it was called the t-6 texan because it was built in dallas, texas. designed in the late 1930s. i was looking for an airplane that i could do aerobatics with. it's been a great airplane. >> july 22nd, 2007. bill leff and his son greg are flying to the air venture event in oshkosh, wisconsin. >> it's a collection of pilots that really enjoy airplanes of all kinds from little home-built airplanes that they build out