A school boy essay of what the the current situation is. No analysis AND NO attempt to envisage a future.
For an electric aeroplane storage of power is even more difficult than for cars when the mass is much less limiting? There and only there is the problem to be solved. Drones are less limited and expanding rapidly in range, size and purpose. The demand for them in various roles are there to be seen: Arial photography, courier delivery etc plus the lethal military examples also controlled remotely from thousands of miles away. The Wright brothers, with little education but with vision, worked in isolation and the aircraft they produced were extremely limited, but look again a 100 years later. The basic principles have hardly changed: three-axis control and ever more powerful and efficient engines with aircraft carrying hundreds of tonnes of freight and people halfway around the world in hours. I doubt this was ever envisaged in 1903;