An idea to adjust transport means to move over snow appeared long ago. First snowmobile was built in Russia in 1904 by an engineer S.S. Nezhdanovsky. It was a light model with an internal-combustion engine equipped with an
aerodynamic propeller. Already in 1907 Y.A. Meller made and tested "a skiing mobile" and a year later this vehicle was called "a motor sleigh". Igor Sikorsky contributed much to snowmobiles development as well.