Structural and Aerodynamics Analysis on Different Architectures for the Elettra Twin Flyer Prototype

In this paper, the authors analyze and compare two airship configurations for the Elettra Twin Flyer prototype, an innovative airship concept which is remotely-controlled and intended for monitoring, surveillance, exploration and reconnaissance missions. The aim of the comparison is to determine the most appropriate solution in terms of performance, cost and maneuvering capabilities. In particular two potential solutions are analyzed: the first consists of a double-hull configuration, characterized by the presence of a primary support structure connected to a couple of twin inflatable hulls. The second architecture is a soap-shaped exoskeleton configuration which features a single inflated section, incorporating two separate elements, which are held internally by a system of ribs.