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.
Bell AH-1 Cobra: Bell AH-1 Cobra is another very advanced helicopter which is made with the single engine and the product of famous helicopter company called Bell helicopters. It is made with latest rotor system and transmission in it. It is considered as the backbone of the USA army because it is quite an advance one.