Less than fifty years have elapsed since the first flight of a power-driven aircraft. On December 17, 1903, the Wright brothers made their now historic flights in an aircraft which they had designed and built themselves; at the fourth attempt on that day a distance of 852 feet was covered during a flight which lasted 59 seconds 1. Unparalleled technical advances followed those first hesitant steps, with the result that aviation has developed into a factor influencing practically every field of society I. The complex mechanism of modem commercial aviation can only function through the combined...
Less than fifty years have elapsed since the first flight of a power-driven aircraft. On December 17, 1903, the Wright brothers made their now histori...