I am probably missing something, but in top level view of the architecture;
- The Generator and battery pack will be sizeable.
- The architecture shows 1 Gen = 1 Fan.
Even if we assume future development (Economics aside) allows 1Gen = 2 Fans, then how do ETOPS apply? Obviously a modified version of ETOPS, but principally you would only have 1 power source, so by default, does this technology only lend itself to Multi Engined aircraft? Or perhaps with 1 Gen = 2 Engines, a regional pax aircraft or cargo drone?