FIELD: aviation.
SUBSTANCE: invention relates to the field of heavier than air aircrafts. Aerodynamic device for the lifting and / or tractive force imparting to the aircraft comprises one and the other parts forming the cavity having input and output slots, located in the said cavity transverse partitions and flap for the air flow through the cavity passage regulation. It is provided with longitudinal partition, located between one and the other parts, each of which is made flat with the through holes. Input and output slots are formed by the longitudinal partition and one part, and the other part and longitudinal partition form the additional cavity with additional input slot, arranged with possibility of the airflow removal from the additional cavity through the other part through holes. In the additional cavity the transverse partitions are located.
EFFECT: invention is aimed at the device aerodynamic drag force reduction and increase in the carrier and / or tractive force creation efficiency.
1 cl, 5 dwg
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