Originally Posted by
StickWithTheTruth
Aviation needs someone like Dyson to come along and shake things up. If they can do vacuums, hairdryers, hand dryers and fans like no other, then maybe they can do something better than our primitive propellers.
I'm not sure that there's much to be gained. Propellers already give about 80% efficiency (ie turning 80% of the power from the engine into thrust).
I can imagine improvements in the power system (eg. better batteries, fuel cells, etc) and airframe (lighter materials, less drag, etc) but I doubt that the propeller itself is going to disappear any time soon.