This small commuter aircraft company is turning science fiction into a practical reality.It wasn't too long ago that flying taxis were the stuff of science fiction. The technology needed to economically ferry passengers through the skies above busy urban streets just didn't exist.As is so often the case though, time and innovation remove the obstacles to compelling ideas. Light but strong materials and quiet battery-electric engines are now realities, making air taxis possible. In fact, Archer Aviation (ACH ...