AERODYNAMIC, BLUNT AFT BODY

摘要

The invention is related to an aerodynamic blunt a rear body (10) of a helicopter fuselage with two strakes (7, 8) along a rear surface (9) and/or respective left side fuselage surface (5) and right side fuselage surface (6). Each of the strake (7, 8) is defined by a first intersection line (3) and a second intersection line (4) resulting from intersections of horizontal planes (z) with the surface of the rear surface (9) or the respective left side fuselage surface (7) and right side fuselage surface (8). The strakes are defined by a two or three dimensional spline (12) from the surface (2) towards the rear surface (9) inside the first intersection line (3) and the second intersection line (4) and inside a bounding box (15).