Re: A new all-electric aircraft with a range up to 600 miles unveiled at Paris Air Sh At 30:1, it's still around 200 mile range. Batteries are expensive, something with a decent L/D but less gross weight would be better. Range is proportional to battery capacity : drag, battery cost is proportional to capacity. Make it light! As a friend used to tell me, the lighter you make it, the lighter you can make it.