The airship Italia, commanded by General Umberto Nobile, crashed during its return flight from the North Pole in 1928. The cause of the accident was never satisfactorily explained. We present evidence that the crash may have been fatigue-related. Nobile's memoirs indicate that at the time of the crash he had been awake for at least 72 h. Sleep deprivation impairs multiple aspects of cognitive f...

Low altitude aerial image sequences have the advantages of high overlap, multi viewing and very high ground resolution. These kinds of images can be used in various applications that need high precision or fine texture. This paper mainly focuses on the photogrammetric processing of low altitude image sequences acquired by unmanned airship, which automatically flies according to the predefined f...

This numerical study reports the aerodynamic properties of a hybrid airship. The airships were designed by combining two semi-ellipsoids with semi-discoid as base model. From model, three different geometrics identified to their characteristics. A circular slot was provided between pressure side and suction objective this realize flow behavior, characteristics, stability such slotted flying veh...