Japanese specialists according to the designs of the famous Leonardo da Vinci designed a miniature single helicopter in the world, weighing 75 kg.
The helicopter, named HSBC GEN-4, is an open seat, which is attached rotor engine and two, rotating in opposite directions.
According to the engineer Gennaya Yanagisawa created an apparatus which has already passed successfully tested in the Japanese mountainous Nagano prefecture, can develop speeds of up to 50 km per hour.
In February of 2008 Guinness Book of Records has registered this apparatus as the smallest in the world helicopter capable of carrying Rights
