An apparatus for adjusting the center of gravity of a vertical take-off and landing aircraft that comprises at least one of longitudinal, transversal, vertical, or diagonal structural frames and that is adapted for the transportation of passengers based on a current operating mode of the vertical take-off and landing aircraft, comprising: a movable support that is movable between a plurality of positions; a connecting device that connects the movable support to the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames of the vertical take-off and landing aircraft, wherein the connecting device comprises: pendulum struts that are configured to be attached to the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames; an energy storage module that is attached to the movable support; an actuator that is attached to the at least one of the longitudinal, the transversal, or the vertical structural frames, and that is connected to the movable support and receives a control signal that is indicative of the current operating mode; wherein the movable support is movable from a first to a second position of the plurality of positions by the actuator based on the control signal indicating a change of the current operating mode from a first to a second operating mode, the first position being associated with a first center of gravity (10, 15) in the first operating mode and the second position being associated with a second center of gravity (10, 15) in the second operating mode, characterized in that the movable support is suspended from the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames by means of the pendulum struts, wherein adjusting the length of the pendulum struts enables adjusting the position of the movable support in a vertical direction; and the actuator comprises: a power unit; and a force transmitting device that is connected between the power unit and the movable support, wherein the force transmitting device transmits a force from the power unit to the movable support that moves the movable support forwards or backwards in at least one dimension. a movable support that is movable between a plurality of positions; a connecting device that connects the movable support to the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames of the vertical take-off and landing aircraft, wherein the connecting device comprises: pendulum struts that are configured to be attached to the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames; an energy storage module that is attached to the movable support; an actuator that is attached to the at least one of the longitudinal, the transversal, or the vertical structural frames, and that is connected to the movable support and receives a control signal that is indicative of the current operating mode; wherein the movable support is movable from a first to a second position of the plurality of positions by the actuator based on the control signal indicating a change of the current operating mode from a first to a second operating mode, the first position being associated with a first center of gravity (10, 15) in the first operating mode and the second position being associated with a second center of gravity (10, 15) in the second operating mode, characterized in that the movable support is suspended from the at least one of the longitudinal, the transversal, the vertical, or the diagonal structural frames by means of the pendulum struts, wherein adjusting the length of the pendulum struts enables adjusting the position of the movable support in a vertical direction; and the actuator comprises: a power unit; and a force transmitting device that is connected between the power unit and the movable support, wherein the force transmitting device transmits a force from the power unit to the movable support that moves the movable support forwards or backwards in at least one dimension. a power unit; and a force transmitting device that is connected between the power unit and the movable support, wherein the force transmitting device transmits a force from the power unit to the movable support that moves the movable support forwards or backwards in at least one dimension.