[translation] The airship shown is not an old-style blimp, that is, a non-rigid airship in which the entire envelope is filled with lifting gas. It is a semi-rigid airship, German-made, called a Zeppelin NT (New Technology). It has a frame made of three aluminum longitudinal ribs and 12 carbon fiber triangles, on which are hung the 12-passenger gondola, the two side engines, and the stern engine. Inside the shell, which is held taut by a slight 5 mbar (0.07 psi) excess air pressure, there are two ballonets with 2,200 cubic meters (78,000 cubic feet) of helium for buoyancy[sic].