RINA has published several families of surface propeller . Here the a copy. For 4 bladed propellers go to the attached literature.
Levi LD 320-350 Surface Drives with Propeller Item Details: These units of Levi Surface Drive LD 320-350 with Propeller is available for sale. Details are listed below: This Levi Surface Drive is for a boat (Single or Multihull) about 16-18m. … Continue reading
This project was done to show some fisherman in Malaysia that that surface propulsion can work economically on their boats. We used a 2. hand park boat and and marinized 2 Myvi petrol car engines. The idea was to drive … Continue reading
Motor Boat & Yachting Record-breaking boat designer Renato ‘Sonny’ Levi dies at 90 Ray Bulman November 14, 2016 0shares Record-breaking boat designer Renato ‘Sonny’ Levi has died peacefully at the age of 90 at his home on the Isle of … Continue reading
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Here a link to an interesting articles on Hickman’s “Sea Sled” written by Dave Gerr and published in Boat Building Magazine Jan/Feb 2003. Gives a bit of history on surface propellers. “Sea Sled slides again” by Dave Gerr Boatbuilding Magazine … Continue reading