THEA-CODE: a design tool for the conceptual design of hybrid-electric aircraft with conventional or unconventional airframe configurationsGiuseppe Palaia, Davide Zanetti, Karim Abu Salem, Vittorio Cipolla and Vincenzo BinanteMechanics & Industry, 22 (2021) 19DOI: https://doi.org/10.1051/meca/2021012