Hello! I'm looking at a 1990 35' powerboat to replace my old boat. It has two big thirsty 220hp diesel engines, one of which isn't running. My...
Hello everyone, I am struggling with one question considering small power boat design (up to 24m, planing hull) in concept and preliminary stage....
Hi all, Imagine a traditional propeller shaft arrangement on board a vessel, with the vessel moving forward using sail power. If we inverted the...
By small boats I a sort of full displacement, human powered motorsailer, a 50/50 row sail boat, like a Solway Dory sailing canoe or one of Atkins...
Does tow path towing take significantly less energy than on-boat propulsion (oars, propeller, etc.) for the same speed? If so, why? In my...
Hello there. I'm currently working on an assignment in which I have to find the resistance of ships using the Holtrop Mennen method in excel. I...
I have a 50' x 13'5'' steel houseboat/barge. We are year round liveaboard and cruising (on pure solar electricity) for 8 month of the year. Canals...
First up: I am not a prop expert at all. the design goal is do find the most efficient solution for a long narrow hull design with a LWL of 24m...
Hello, I'm joining a competition where students will build boats with the same engine given by the organizer. It will be a time trial race and a...
Servogear Ecoflow propulsion system, more into at www.servogear.no
Servogear Ecoflow propulsion system lay with propeller tunnel, more into at www.servogear.no
Servogear Ecoflow propulsion system. Efficiency from full scale and models tests at SSPA, more info at www.servogear.no
