multihull

For many years, I've been considering my next yacht for a family of 6-8 people. I've been sailing since I was 15. I live inland, practically the same distance from the Baltic Sea as from Croatia (the Mediterranean Sea). I love Masuria, the jewel of Polish lakes... I recommend it to anyone who...

Hi fellas, I am doing a project on cfd analysis of a composite-modelled catamaran. I have completed my catamaran model but facing issues with the GA of a catamaran. As for structural analysis, i want to know about the loads acting on various locations, apart from the passengers.

I am thinking about building a multihull microcruiser. I got a boost of inspiration from Balkan Shipyard, thanks Rael! Of course I want it cheap, fast, easy to build and impossible to capsize :) I guess the main topic will be capsize here, as for me the main difference between a beach boat...

Philippe RIVIERE, presents the WAPA 35 R3: a fake 35 feet since with its skirt it should measure a little over 37 feet; but for the rest: floats, width and sail area corresponding well to a cruising tri of 35 feet. It is all CP-glass-epoxy with carbon reinforcements. The fins are on the floats...

Hello everyone, as the title suggests im looking for a Low-Cost Easy to build multihull for me and my wife. We are not experienced in building boats. I think around 25 feet multihull will offer us a comfortable space. I'm looking forward to hearing your suggestions and ideas.

Hi Everyone, I would like to present the tool that I've developped, to assess ISO compliancy of monohull & multihulls, with the ISO12215 standard. 12215 ALIVE ! is a powerfull web app for assessment of Small Crafts with the standard ISO-12215 Design & Scantlings. The standard is translated...

Hi, After lurking for some time I have finally mustered the courage to post a question to the forum. We are currently designing a (low)- power outrigger boat project, and are a little unsure in figuring out the design of the arms. Overall dimensions: It is not the biggest boat with 20'...

19m Sail Catamaran Hybrid Electric Propulsion Design Andrei Andrei Rochian FIFTY BOAT and YACHT DESIGNS CREATED BY ANDREI ROCHIAN displayed as 3D CAD CONCEPT models on YOUTUBE

Would it make sense to design catamarans and trimarans to be wider in the stern, to increase stern bouyancy? Are there any examples of this? What would that do to performance? The faster a displacement hull moves through the water, the father back both the bow and stern waves will move, causing...

Hi, my post concerns cruising multihulls. I've been thinking about a trimaran with its central hull smaller than its side hulls. The result would be a trimaran looking almost like a very wide catamaran. The side hulls would have dimensions (layout) of typicall catamarans' hulls so they would...

Ahoy, me hearties! I've never been much of a pirate, but my days of being a scallywag, is (hopefully) soon over. I need some help deciding on dimensions for my Fiberglass catamaran. And drawing the boat in a program, so I can print out some sheets to go after. Here's a link with more...

Hi everyone I have been searching for steel multihulls especially trimarans in 50 foot size range (little bit more ir less) for a long time but there is no data available on internet which can be considered as an example or model. Does anyone have ideas or links of this kind? Please share with...

Hello everyone, I'm new to boat building and just signed up to this forum to ask my newbie question. I've been reading quite a lot about folding trimarans (also on this forum) and right now I'd like to try and build a W17. There's just one thing: I really need the amas to be foldable on the...

Could anyone point me in the right direction on where to find rules for scantling calculations for an aluminum catamaran? Concept is a 15m houseboat! Thanks in advance

Hi everyone, I'm talking here about a self built catamaran. Is the quattro 16 an outdatted design in 2020? Is there another beachcat of similar length that you would suggest instead? I'm simply having a look at different self build options. Thanks for your time!

Drawing up a 48 foot (14.6304 m) catamaran hull, and EXPERIMENTING w/Rocker shape. Rocker_View_1 | Boat Design Net https://www.boatdesign.net/gallery/rocker_view_1.27280/ Rocker_View_2 | Boat Design Net https://www.boatdesign.net/gallery/rocker_view_2.27281/ The entire keel/centerline is...

Hi Smart boat engineers First let me announce that I am building a proa in Alu based on plans for madness by John C. Harris. Those plans are obviously not for an alu boat so I'm doing some changes but not allot to the boatdesign to compensate for this. Biggest change is the size It's going to...

I was looking at a multihull recently that had hulls built with Durakore. This boat was built about 25 years ago and was in excellent condition. Durakore is made in Australia and I know that many of the beautiful Schionning cats use Durakore, but this is the first boat I've seen in the US that...

I have a EDELCAT33 sailing catamaran circa 1995.edelcat33 - Google Search https://www.google.com/search?q=edelcat33&ie=UTF-8&oe=UTF-8&hl=en-us&client=safari#imgrc=7XbruchwA07M8M: These cats are demountable and have 3 separate living spaces; each hull and a nacelle or cuddy cabin. Since the...

I damaged my Corsair F28R daggerboard sailing in Mexico in the Spring. Because replacements are pricey, am planning to repair it. Had a neat plan and was about to put it into action when I determined that I wasn't sure what the original foil shape was. The foil is similar to a NACA 10 foil...