The battery density needed to make electric flight possible is ~400wh/KG, which we are well past. There’s no technological limitations blocking transatlantic flight.
Also, the question wasn’t if we were close, it was if it’s easier in ships or planes.
I disagree with the “the technology is already there” statement. Source: I was part of an aviation electrification research project.
Small regional planes are technologically possible, yes, but transatlantic or transpacific flights? We’re nowhere close to that.
The battery density needed to make electric flight possible is ~400wh/KG, which we are well past. There’s no technological limitations blocking transatlantic flight.
Also, the question wasn’t if we were close, it was if it’s easier in ships or planes.