| 摘要 |
The invention relates to an aerial device (30) having a structure (31) and a rotary element (34) provided with at least one blade (38), suitable for rotating in relation to the structure, about a rotational axis, wherein the device is provided with a gas generator (40) forming part of the structure and a conduit (50) for guiding the gas produced by the gas generator to an opening (37) at a distance from the rotational axis, for driving the rotation of rotary elements (36) by means of the gas ejected via the opening. |
