In order to reduce noise, the invention proposes an airfoil profile (30) for an aircraft (10), such as an unmanned aerial system (11). The airfoil profile (30) comprises a leading edge portion (31) and a trailing edge portion (32) that are spaced apart along a chordwise direction, an airfoil centroid (33); and an upper airfoil surface (40) and a lower airfoil surface (50). The airfoil surfaces (40, 50) are shaped such that the pressure center (Cp) of the lifting force is arranged at the same chord location as the airfoil centroid (33) or closer to the trailing edge portion (32) along the chordwise direction than the airfoil centroid (33). With this, a pitchdown momentum is generated that urges the leading edge portion (31) towards a lower angle of attack (AoA).
PROPELLER BLADE USING AN AIRFOIL PROFILE
PROPELLERBLATT MIT EINEM TRAGFLÄCHENPROFIL
PALE D'HÉLICE UTILISANT UN PROFIL AÉRODYNAMIQUE
2025-04-02
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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