A vertical stabilizer for an aircraft, comprising: - a fin, - a rudder pivotable with respect to the fin - a rudder adjustment arrangement for adjusting the angular position of the rudder with respect to the fin, wherein the angular position is adjustable towards both sides from a position of 0°, in which the rudder is aligned with the fin, - a vortex generator arrangement which comprises, on each side of the fin, at least one turbulence generation element, wherein each turbulence generation element is disposed in a surface section of the fin and is mounted moveably between a first, retracted position, in which it is retracted into an interior space of the fin, and a second, extended position, in which it projects at least partially outwardly from the fin transversely with respect to the surface section, and - a turbulence generation element adjustment arrangement which is coupled to the rudder and is configured such that it is able to engage the turbulence generation elements and transfer a movement of the rudder to them in order to move them from their first into their second position, wherein in a range of angular positions of the rudder limited on both sides of the angular position of 0° by a predetermined minimum angle the turbulence generation element adjustment arrangement is inoperative for causing a movement of the turbulence generation elements out of the first position, and only when the minimum angle is exceeded moves at least a part of the turbulence generation elements from the first position into the second position when the angle is increased further, wherein the turbulence generation element adjustment arrangement is configured such that in the range of angular positions of the rudder limited on both sides of the angular position of 0° by the predetermined minimum angle the turbulence generation element adjustment arrangement does not engage the turbulence generation elements, characterised in that the turbulence generation element adjustment arrangement comprises: - at least one first coupling element which is supported rotatably about an axis of rotation and disposed within the interior space of the fin and which comprises a plurality of arms extending radially away from the axis of rotation and being spaced from each other in the circumferential direction, - at least one second coupling element, which is connected to the rudder and is coupled to at least one of the at least one first coupling element in such a manner that the latter is rotated by changing the angular position of the rudder, wherein the at least one first coupling element is arranged such that - in the range of angular positions of the rudder limited on both sides of the angular position of 0° by the predetermined minimum angle the arms of the at least one first coupling element are spaced from the turbulence generation elements, and, - when the minimum angle is reached, at least one of its arms engages at least one of the turbulence generation elements and moves it from the first position into the second position when the angle is increased. - a fin, - a rudder pivotable with respect to the fin - a rudder adjustment arrangement for adjusting the angular position of the rudder with respect to the fin, wherein the angular position is adjustable towards both sides from a position of 0°, in which the rudder is aligned with the fin, - a vortex generator arrangement which comprises, on each side of the fin, at least one turbulence generation element, wherein each turbulence generation element is disposed in a surface section of the fin and is mounted moveably between a first, retracted position, in which it is retracted into an interior space of the fin, and a second, extended position, in which it projects at least partially outwardly from the fin transversely with respect to the surface section, and - a turbulence generation element adjustment arrangement which is coupled to the rudder and is configured such that it is able to engage the turbulence generation elements and transfer a movement of the rudder to them in order to move them from their first into their second position, wherein in a range of angular positions of the rudder limited on both sides of the angular position of 0° by a predetermined minimum angle the turbulence generation element adjustment arrangement is inoperative for causing a movement of the turbulence generation elements out of the first position, and only when the minimum angle is exceeded moves at least a part of the turbulence generation elements from the first position into the second position when the angle is increased further, - at least one first coupling element which is supported rotatably about an axis of rotation and disposed within the interior space of the fin and which comprises a plurality of arms extending radially away from the axis of rotation and being spaced from each other in the circumferential direction, - at least one second coupling element, which is connected to the rudder and is coupled to at least one of the at least one first coupling element in such a manner that the latter is rotated by changing the angular position of the rudder, wherein the at least one first coupling element is arranged such that - in the range of angular positions of the rudder limited on both sides of the angular position of 0° by the predetermined minimum angle the arms of the at least one first coupling element are spaced from the turbulence generation elements, and, - when the minimum angle is reached, at least one of its arms engages at least one of the turbulence generation elements and moves it from the first position into the second position when the angle is increased.