I know it sounds maybe stupid at this time when electric cars are so expensive...."There is no reason that electric propulsion system and reasonably big battery should be expensive." ??????
Just try to take it from other point of view.
What is expensive on electric propulsion?
Motor? Controler? No... it is battery.
And why is battery expensive?
Not because of cells, it is because of all "wiring, BMS, case and work to make it".
"Standardized" battery pack doesn´t exist so far, but some of car batteries are looking OK for our purpose.
So like everything new - even electric propulsion systems are actually expensive - like first electric RC models. And actually - how many RC models are flying with combustion engines?
Power of electric motors for "big" RC models and power requested for one seat self launch glider are not far away.
So... I am optimistic. And I am also glad to see work of pilots/designers like Gabriel DeVault - this is a very promissing beginning
Shown and flown at this year’s Sun ‘n Fun and Airventure, the Aerolite 103 is a well-tested, best-selling ultralight that is a true ultralight.
But please don´t forget I am still in area of simle light one seat "glider like" airplanes.
In case of two seat long range electric LSA or GA airplanes is situation different.