...-estimation techniques, power-management optimizer and a generic mission analysis module which allows mission performance evaluations of any propulsion architecture. Building blocks of E-PASS are shown in Figure 2 . This paper focuses mainly on Blocks 2 and 5, namely the subsystem architecture definition...

... and it provides a detailed description of propulsion operating modes, power management, electric system and machine architecture. Originality/value This study presents a novel application of hybrid propulsion focusing on a three tons class MALE UAV for ISR missions. It provides new operating modes...