No, I know how electrical systems work on airplanes. You need to understand that some systems cannot work on AC, like MC, DDI, INS, GPS, etc. So the question is not how power is converted in life but how the hornet manages to have those systems working if the generators power, of course, the AC buses. The DC buses that appear on NATOPS are all powered by battery (when GENs are off) and battery won't energize any of the systems I mentioned above (in DCS at least).