Eufaula, Alabama. Eufaula is the largest city in Barbour County, Alabama, United States.
Leonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.eonardo da Vinci (1452â1519) is generally credited with inventing the helicopter, but the first practical design was developed only in the 1930s by Russian-born Igor Sikorsky (1889â1972). Today, typical uses for helicopters include military transportation and air-sea rescue.
While there, he conceived his first helicopter. âHe had this idea of a single rotor vertical flight craft,â notes Dorothy Cochrane, co-author of The Aviation Careers of Igor Sikorsky. But after a couple of tries in 1909 and 1910, he abandoned the idea because they didnât fly.