Abstract: A lighter-than-air aircraft is propelled via a bending-rotating tail whip. Two actuating areas located on opposite sides in a rear area of a lifting gas body are shortened by activated actuators. A vertical plane of symmetry of the lifting gas body and thus, the lifting gas body itself, are pivoted in an area of bending zones about angles a and ?. An activated state exists when the actuator performs work for propelling the aircraft. Propulsion can be provided by deformation of the lifting gas body. Changes in direction can also be effected by asymmetrical sequences of movements.