design advice

Hi all, I am looking for information about building a small 2 person sailing/rowing dory from HDPE. AI-chatbots say it can be done of course but i would like some real world input. Is this doable, does someone have experience doing this or something similar? Explanation for the HDPE: i want to...

Im starting a project of designing, a large, fast, cost effective keel boat that is possible, I want all the advice you guys are wiling to give including software to draw, design, and build in (not too expensive) as well as any physics or mathematical things to pay attention to. I am looking...

Hi all I am looking for advice on what to consider when converting a plan to skin on frame construction. sailing and rowing designs upto 16' long. I'm thinking of boats like a peapod, or shetland yawl etc. I will be using an unstayed lug rig. Skin on frame due to ease of construction, material...

Hello! I came up with this idea to minimize the air influence from single mast on the main sail. the idea mainly came from reading this paper. I came up with an idea of an A-type that is basically the best of most worlds, in which its still as convenient as the standart and as performative as a...

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'...

I’m currently a student and I’m doing a project on creating a 3D boat that is loosely based on the America’s cup, I’m thinking of using a trimaran design for my boat but I’m not too sure and would look some input on the best type.

I am comfortable with buoyancy calculations etc, but looking for the "unknown (to me) unknowns" around structural integrity of the platform. Looking at thick-wall HDPE pipe for the pontoons for reasons of maintenance and resistance to winter ice so I will assume zero structural contribution from...

Hi all! This is a design of a 12' sailboat with a full keel. plywood stitch and glue construction in mostly 3/8", 900 pounds displacement and 50% ballast ratio. I'm wondering if this boat would be sufficiently seaworthy for crossing something like a Canadian great lake. I calculated the...

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...

I am looking for informed/professional input on this design. Opinions are like... well, we've all got them. I'm not looking for that here. I'm looking for information based on experience and knowledge about design, function and performance. Here is the design. Intended use: long distance...