| 摘要 |
The invention relates to a horizontal stabilising surface (8) of an aircraft, in which the sweep angle (40) of said surface (8) is less than 90 degrees, whereby said angle (40) is that formed by the projection of the point reference line at 25% of the local chord (19) of the horizontal stabilising surface (8) onto a plane perpendicular to the plane of symmetry (21) of the aircraft, in the flight direction of the aircraft, with respect to the plane of symmetry (21) of the aircraft, said angle (40) being measured in the flight direction of the aircraft. In addition, the structural connection between the horizontal stabilising surface (8) and the fuselage (1) of the aircraft is provided by a ring frame (13) of said fuselage (1).
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