Electrically propelled airship having a rigid frame and power-generating nacelle with which the airship is provided

An airship, comprising:

• a main body having a rigid frame surrounding a plurality of containers of a lighter-than-air gas, a plurality of propeller units mechanically connected to the rigid frame and each comprising one or more electric motors for driving a thrust propeller, and power-generating units for powering the one or more electric motors;
• and
• two nacelles symmetrically arranged on either side of the main body, each of the two nacelles configured to receive one or more of the power-generating units, each of the two nacelles comprising a mechanical structure connected to the rigid frame of the main body of the airship by:
• a main mounting interface between a lower part of the mechanical structure of the nacelle and the rigid frame of the main body of the airship,
• a fail-safe mechanical joint interface between an upper part of the mechanical structure of the nacelle and the rigid frame of the main body of the airship, the fail-safe mechanical joint interface configured to provide a secondary standby mechanical connection between the nacelle and the main body of the airship beyond a predetermined upper tensile limit, and
• at least one rod or stay cable between a first point of attachment on the rigid frame of the main body of the airship and a second point of attachment on the mechanical structure of the nacelle.