Projectile, with a body extending along a longitudinal axis, which is designed to have a spin around the longitudinal axis in a flight direction in the case of a flight as intended, - with at least one steering surface (16a-h) which is pivotably mounted around a pivot axis relative to the body so as to spin with the body, wherein each of the steering surfaces (16a-h) has a respective current pivot angle around the pivot axis, - with an actuating unit which is connected via a linkage to at least one of the steering surfaces (16a-h) and which is designed to deflect the steering surfaces (16a-h) with regard to their respective current pivot angle, and in doing so, to set, for each of the hinged steering surfaces (16a-h), a spin-decoupled cyclic course of the respective current pivot angle depending on a circumferential angle in the circumferential direction around the longitudinal axis, wherein the course can be changed by the actuating unit, - characterized in that the actuating unit comprises: - a spin-decoupled carrier, namely moving in flight in a translational not rotating manner, without spin, with the projectile along a trajectory, - a spin-decoupled course element which specifies the course and the position of which relative to the carrier is adjustable, - a linkage element rotationally mounted relative to the carrier, having the spin and movement-coupled to the course element with regard to a change in the position, which linkage element is connected to the steering surfaces (16a-h) via the linkage, - a spin-decoupled actuator arrangement which is configured to set the position of the course element predefinably. - with at least one steering surface (16a-h) which is pivotably mounted around a pivot axis relative to the body so as to spin with the body, wherein each of the steering surfaces (16a-h) has a respective current pivot angle around the pivot axis, - with an actuating unit which is connected via a linkage to at least one of the steering surfaces (16a-h) and which is designed to deflect the steering surfaces (16a-h) with regard to their respective current pivot angle, and in doing so, to set, for each of the hinged steering surfaces (16a-h), a spin-decoupled cyclic course of the respective current pivot angle depending on a circumferential angle in the circumferential direction around the longitudinal axis, wherein the course can be changed by the actuating unit, - characterized in that the actuating unit comprises: - a spin-decoupled carrier, namely moving in flight in a translational not rotating manner, without spin, with the projectile along a trajectory, - a spin-decoupled course element which specifies the course and the position of which relative to the carrier is adjustable, - a linkage element rotationally mounted relative to the carrier, having the spin and movement-coupled to the course element with regard to a change in the position, which linkage element is connected to the steering surfaces (16a-h) via the linkage, - a spin-decoupled actuator arrangement which is configured to set the position of the course element predefinably. - a spin-decoupled carrier, namely moving in flight in a translational not rotating manner, without spin, with the projectile along a trajectory, - a spin-decoupled course element which specifies the course and the position of which relative to the carrier is adjustable, - a linkage element rotationally mounted relative to the carrier, having the spin and movement-coupled to the course element with regard to a change in the position, which linkage element is connected to the steering surfaces (16a-h) via the linkage, - a spin-decoupled actuator arrangement which is configured to set the position of the course element predefinably.