Flying craft, has two hollow contra-rotating rotors rotatably driven by craft motorizing unit of aerodynamic case, where motorizing unit has heat engine that is arranged between rotors and between blade planes

摘要

The craft (1) has two hollow contra-rotating rotors (2, 3) rotated along respective rotational axes (4, 5). The rotors have respective sets of variable pitch blades (21, 31) that are extended along blade planes (P21, P31), respectively. The rotors are rotatably driven by a craft motorizing unit (6) of an aerodynamic case (40). The unit has a heat engine (61) arranged between the rotors and between the planes. The rotors have respective flat disc shaped rings (22, 32) that are extended around the axes with respect to the blades, while being movable with respect to the blades.