[yodelshady]

So, by that article, a fully-loaded turboprop (let's say 19 100 kg passengers, 4900 kg airframe, 320 kg fuel, 308 kg reserve fuel) flying 200 nm weighs ~ 7500 kg and consumes just under 4 MWh of fuel, of which 1 MWh is useful work.

The battery model will weigh at least twice that for the same useful work, so how the hell does it fly as far? Could it actually fly the mandated 100 nm + 30 min contigency*

[oscardssmith]

One thing to consider is that you save a lot of weight on noise insulation. The wavy edges on the back of many new jet engines make the engines about 2% less efficient, but they let the plane save on enough weight to more than make up for it. Electric engines are probably about 20db quieter than equivalent power jet engines, so that can claw back some of the lost range.

[blendo]

Not unless they’re using magical 1000-3000 Wh/kg batteries. I expect practical transports will use electric motors with hybrid power. And as far as I know, the ONLY electric airplane currently for sale is the two-passenger Pipistrel Alpha Electro.