Walking before running…. let’s start with known electrically-powered aircraft and see what they can do with the limited resources available pre-fusion…
http://en.wikipedia.org/wiki/Electric_aircraft
… yes, the FF is much heavier than any other power source currently flying… but the power level is amazing for an electric aircraft and the range, of course, is unlimited…
… then begin looking not at “jet engine substitutes” but at industrial air-moving products that operate in the multi-megawatt range we need for FF-powered flight. These industrial units won’t be designed flightweight but that’s just engineering 🙂 and the figures you get will make sense…
