Company of helicopters "Eurocopter" developed a helicopter "X3 Hybrid Eurocopter" to conform with the specifications of modern aviation and acquire the ability of taking off and landing in locations that are not fit for that
It was the first flight of the helicopter in the skies of France, where it rose to the height of 3810 meters and winds of 180 knots, then the Office of the design developed the structure of the helicopter and tail erecting a pair of vertical rear propeller and rudder