Flugzeugflügel mit Rauem Streifen

Details

Veröffentlichungs-Nr.

EP3213991

Aktenzeichen

EP17158776

Anmeldetag

1. März 2017

Veröffentlichung

29. Mai 2019

Erteilung

29. Mai 2019

Rechtsraum

EP

IPC

B64C21/10B64C30/00B64C3/00B64C3/26

Abstract

A fixed wing aircraft has a wing with an aerofoil cross-section defining an upper geometric surface and a lower geometric surface which meet at a geometric leading edge of the wing at the intersection with the aerofoil geometric chord. The wing is configured to define an upper aerodynamic surface and a lower aerodynamic surface when the wing is moved through air. The upper aerodynamic surface and the lower aerodynamic surface meet at an aerodynamic leading edge of the wing at the intersection with an attachment line dividing the air that passes over the upper aerodynamic surface from the air that passes over the lower aerodynamic surface. The lower geometric surface adjacent the geometric leading edge has a roughness strip with a step height of at least 50 microns over the lower geometric surface. The roughness strip is located on the lower aerodynamic surface of the wing when the aircraft is flown at a load factor -the ratio of the lift of the aircraft to its weight - of 1g, and the roughness strip is located on the upper aerodynamic surface when the aircraft is flown at a load factor of 1.2g or more.

Anmelder

Firmen

Airbus Operations Limited
Airbus Group Limited

Land

🇬🇧 Großbritannien

Fachgebiete