A missile includes one or more arrays of barrel assemblies that are displaced from the centre of gravity of missile. These separators have particularly good handling properties since they are mechanically very stable. In the present invention, a machine-readable item identifier is affixed to a physical item. On the other hand, the connector is provided with a pair of locking pieces as a positioning portion. By continuously recharging the power storage system, the hybrid airship in accordance with some embodiments can stay aloft at an operational altitude of at least about 85,000 ft for months or even years.