The helicopter, with two 25% lighter four-arm rotor structures, offers high performance: It can transport between 25 and 30 passages or 4 tons of cargo at 350 km/h. In addition, the landing gear is hidden. This reduces fuel consumption and increases autonomy with the onodro.
This is not the only giant helicopter. Last November the so-called EH-101 began to be tested in Britain. Five-arm helicopter with a single rotor with a speed of 300 km/h and a maximum range of 1 400 km.