An aircraft tail surface (11), such as a horizontal tail plane or a vertical tail plane, comprising a leading edge (14) having in at least a section along the tail span an undulated shape formed by a continuous series of smooth protrusions (17) and recesses (19) so that, in icing conditions, the ice accretion is produced only on the peaks (18) of said protrusions (17) and on the bottoms (20) of said recesses (19), thereby creating a channeled airflow and an arrangement of air vortices which impart energy to the airflow in the aerofoil boundary layer which delay the airflow separation that causes the stall, thus reducing the detrimental effects of ice accretion in its aerodynamic performance.
Aircraft tail surface with a leading edge section of undulated shape
Flugzeugleitwerk mit einer wellenförmigen Vorderkante
Empennage d'aéronef avec une section de bord d'attaque de forme ondulée
2017-10-04
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
AIRCRAFT TAIL SURFACE WITH A LEADING EDGE SECTION OF UNDULATED SHAPE
European Patent Office | 2019
|AIRCRAFT TAIL UNIT SURFACE WITH FRONT EDGE SECTION OF WAVY SHAPE
European Patent Office | 2017
|