Airship with rigid supporting structure

Rigid structural-frame dirigible i.e. airship, having an empty-weight centre of gravity, in an aerodynamic shape, having an equilibrium mirror structural symmetry with respect to a longitudinal, vertical plane (Π3), passing through said centre of gravity, including an internal framework, and including a plurality of motors and a pressurized pilot's cabin (1);

• characterized in that
• said internal framework is subdivided into internal zones, symmetrically with respect to said vertical plane (Π3), respectively forming non-intercommunicating compartments, i.e. internal zones fixedly clearly separated and sealingly isolated therebetween through rigid partition means in fixed union with the internal frame itself, and suitable for being evacuated to a vacuum regime, respectively forming as many vacuum zones (3A;
• 3B;
• 3C);
• which vacuum zones (3A;
• 3B;
• 3C) include a perennial vacuum zone (3A) having such a total volume that the ascent thrust caused by the evacuation of the same is greater than the vacuum weight of the dirigible itself;
• a stabilization vacuum zone (3B), of such a volume that evacuation or air-filling thereof are suitable to controlling takeoff, landing and altitude-keeping of the dirigible itself;
• a manoeuvre vacuum zone (3C), of such a volume that evacuation or air-filling thereof are suitable to controlling actuation of manoeuvre displacements with respect to flight altitude of the dirigible itself;
• said stabilization vacuum zone (3B) and said manoeuvre vacuum zone (3C) always including a sensible air quantity;
• and including
• ground anchoring means;
• a pneumatic central system including an aspiration and compression plant, including afferent pipes in the pneumatic central system itself;
• which pneumatic central system is in functional connection with said vacuum zones (3A;
• 3B;
• 3C) to adjust the vacuum regime inside them to generate an upwards thrust to an altitude in the atmosphere or a downwards negative thrust.