The Red Curtain was of a central type, with a parallelepipedal base of 2.75 × 2.75 m for 1 m high, overlaid with a pyramidal part whose vertex was nearly 1 m from the ground.
The tent, designed to accommodate up to four people, hosted nine (including two leg wounds, Umberto Nobile and Natale Cecioni), Titina's mascot, a part of the radio and the batteries that fed it.
At the bottom were placed the cartons containing the sailing cards and the only surviving sleeping bag that, cut and opened, would host the two wounded Cecioni and Nobile, next to the catalytic stove on.
To properly assess the height of the airship relative to the ground, were not sufficiently reliable altimeters available at the time, and was therefore used a more efficient system: from the cabin of the airship were dropped the vials of glass, stuffed with fuchsin, by measuring the time of a fall with a special stopwatch, made in Rome by Hausmann, starting from the release until the vial collapsed, packing red.
The continual and aggressive light of the Nordic summer made the delicate aniline vanish in just a few days, bringing the tent to its original livery.