| 摘要 |
The invention provides an aircraft with propellers with vertical and horizontal axes in combination with pivotable wing portions. At vertical take off and landing the propellers with vertical axes bear the craft while the wing portions are set with their chord parallel to the airstreams through the lifting propellers. When the aircraft flies forward with enough speed, driven by the propeller(s) with the horizontal axis (axes), the lift propellers are set to rest parallel to the forward flight direction of the craft while the wing portions then pivot under the airflow over them into a horizontal position with their chords, at which they are prevented from further pivoting by stoppers in order that the wing portions then carry the craft at the forward flight. The actions of the lift propellers and the wing portions can be effected by power division means between the propellers with vertical and horizontal axes with the result that the wing portions adjust their positions automatically according to the flight behavior of the craft.
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