FinX has a patented technological breakthrough (15 international patents) for nautical propulsion purposes. It has no propellers and can move water with an undulating membrane.
Sources & Credits:
https://www.youtube.com/watch?v=aP8CGKtP3ZQ
https://www.youtube.com/watch?v=TwJntNw0_7U
https://www.youtube.com/watch?v=kyATEcLhdwM
By: Tech Planet
Title: INVENTOR Reveals BREAKTHROUGH Boat Motor - IS it REAL!?
Sourced From: www.youtube.com/watch?v=juJvpleMqg4