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Thank you for your advice. Peter HK and hokeyhydro.. However, having looked now at the Okracoke 20 it has the following figures: BOAT WEIGHT including 90 hp motor...1400-1600# (635-735 kilos) depending on materials and options* DISPLACEMENT 2000 lbs (909 kilos) @ dwl So if we say an actual weight of 700kg, that still only gives 200Kg to achieve the dwl. So doesn't that suggest it too would only handle 4 people? The Okracoke 24 appears even worse with an actual weight of 1100Kg but a dwl weight also of 1100kg - surely that can't be right?

Thank you for a very clear explanation, Peter - disappointing, but clear. A payload of 244 kg seems to suggest that the design is aimed at a total crew of three adults or two adults plus two children - is that right? From what you are saying I need to be looking at a boat with a much bigger difference between the boat weight and the displacement at DWL.

I have a few questions about the Marissa design which don't seem to be answered by the existing posts or its web page. 1. Is it possible to say what is the lowest h.p. that would carry 6 adults at 25 knots in smooth water without struggling? 2. How can I can get a feel for what seating arrangements are possible for up to six adults? The photo shows a bench seat behind the centre console, but is there room for a second bench behind that? Also, what options would there be for seating in front of the console? Is another bench seat possible? Is there scope for any seating going along the sides of the boat? And also, what storage capacity is available at the front of the the boat. Is there space designed in for anchor, warp, boathook etc.? Presumably, there is accessible storage space inside the console as well? 3. Is there provision for any kind of swimming platform and boarding ladder at the stern? 4. Since I live in France, it would be sensible for me to order a kit of parts in Europe. Would it be possible to let a CNC shop over here cut the parts for this design, such as Jordan Boats (jordanboats.co.uk) in Scotland? 5. I notice that at least one builder had to experiment to get optimum propeller dimensions. Is that normal with a power boat design? Or are there build variables which affect propeller choice and which mean it can't be specified in advance? Thank you