ELECTRICALLY POWERED, RIGID-STRUCTURE AIRSHIP AND ELECTRIC-POWER-GENERATING NACELLE EQUIPPING SAID AIRSHIP

An airship comprises a main body having a rigid structure surrounding a plurality of containers for a lighter-than-air gas, a plurality of propeller units mechanically connected to the rigid structure and each comprising one or more electric motors for driving a thrust propeller, and one or more power-generating units for powering the electric motors. The airship also comprises two nacelles symmetrically arranged on either side of the main body and each configured to receive one or more of the power-generating units, each ducted nacelle comprising a mechanical structure connected to the rigid structure of the main body by a joint, a "fail safe" interface, and at least one rod or stay cable between a first point of attachment on the rigid structure of the main body and a second point of attachment on the mechanical structure of the nacelle.