Patent ID: 9242713
Filing Date: 2016-01-26
CPC Classification: B64C,Y02T

Claim Text:
1. An aerodynamic blunt aft body of a helicopter fuselage with a longitudinal middle plane, the helicopter fuselage comprising left hand and right hand side fuselage surfaces essentially parallel to the longitudinal middle plane, an aft surface between the left hand and right hand fuselage surfaces with an essentially normal alignment of the aft surface to the longitudinal middle plane, and at least two stakes provided along the aft surface and/or the respective left hand and right hand side fuselage surfaces as an essentially mirrored image of each other with respect to the longitudinal middle plane, wherein each respective strake is defined by: each respective strake being defined within a respective bounding box with a height of 13% (+/−7%) offset relative to the fuselage width with a two or three dimensional spline towards the aft surface inside the first and second intersection lines.