dinghy

Hello! I’ve got a small dinghy that I use as a tender to my sailboat. The dinghy is lightly built, which is fine for its purpose, but when I’m rowing the gunwales flex so much I’m worried I’ll crack them over time. I’m guessing the proper fix would be to fully replace the gunwales with more...

Got this Ski breeze sailboat as my first to learn in. Built in sweden between 1957-65. 5,6x1,8m 340kg displacement. Only done 5 short trips yet, but it is very addicting. Unusual boat and hard to find anything on the web about it. Anyone having any experience with such a boat?

Hi, i will be uploading pictures of the progress of the building. The boat is being build entirely in welded HDPE sheets of 15, 8 and 6mm of thickness, mast will be Ø50mm hardware aluminium tube. Saludos desde Chile.

I am pleased to share with you my new version 3.1 of Gene-Hull Dinghy , a spreadsheet application oriented for an early stage project : this version is mostly motivated by a new approach of the keel line shape (i.e. hull bottom center line for a dinghy) now generated with a curvature regularly...

I am just in the process of finishing a Bolger Rubens Nymph, a stubby pram dinghy with a pronounced bottom rocker. The boat is about 2,4 x 3,4 m (7'9'' x 4'6'') On the plans there is one skeg, a triangular shape about 60 * 9 cm (2'1'' x 3 1/2''). I thought it might be easier to drag up the...

Hi, I'm looking for a design guidence for a daggerboard of 3.8mt/1.3mt dinghy having total 6.5m2 sail. From web search ; - Area should be more than %3 of sail area, - Naca0010 suggested ( to be coupled with 0012 Rudder) - Eliptic shape to reduce tip losses. Questions ; - Which range of drift...

I am pleased to share with you my thoughts and two propositions about the hull shape of sailing dinghies in relation with their planing mode : *1* One of the issues recurently evoked is the shape of the hull bottom center line (also named the keel line, although there is no longer keel at such...

The Chapelle sailing dinghy constructed by Ashcroft, this is in stand by. now I'm learning better FreeCAD and I resume when i'm ready, in order to make a complete project of this boat totally with FreeCAD

I propose you an upgraded version 3.0 of Gene-Hull Dinghy ( / the previous version 2.42) , a spreadsheet application oriented for an early stage project : this new version is mostly justified by sections shape new formulation, inc. for topsides in case of an hard chine, allowing a wider variety...

I am pleased to share with you my thoughts and a proposition of standard to assess the intrinsic stability of a dinghy. I mean by intrinsic stability two complementary aspects : > the initial stability at rest, that which one feels as soon as one goes on board, this propensity to take more or...

Hello from Lancashire, England. I've been building my mini boat, which is 7'3" at the waterline, since January. The aluminium hull was the easy part but getting it to go and steer were a nightmare. I'm a keen cyclist so thought that it should be pedal powered. A trolling motor would be too easy...

Hi, has anyone built a dinghy or has plans for building a dinghy that could use laser 4.7 sails? It could be a smaller trimaran too.

Does anyone know of any davits (factory systems or DIY) set up like this to swing a small punt through 180 degrees from the water directly to belly-up storage? Yes, the rudder is in the way in this sketch, it's just the drawing I had handy. Obviously you could also stop the swing after just 45...

Hi guys, I’ve been undergoing a small plywood stitch and glue sailing boat build of a boat I designed myself (my first boat I have built or designed). I’m at the point where I have basically finished the hull except for some reinforcing and coating and am at cross roads. Most builds i have seen...

Hey there, I'm reading and reading tons of threads here for a few month now I would like, if possible to have a bit of help on planing hull design/raw hydrodynamic theory. I'm a technical guy, I know that what I ask isn't the clever thing all time, but more a try to understand the RAW theory in...

Hello everybody I am in the process of designing a cruising 18 ft dinghy .I am currently trying to determine my LCB. As per Principles of yacht design, for sub planing speeds, it should be around 4% of LWL aft of midships. However I see that most similar dinghies have their LCB far forward of...

I am an industrial design student at the Norwegian University of Science and Technology and I am currently working on my master thesis. For the master project I am going to develop a concept for a new sailing dinghy. The dinghy will be designed for expeditions and exploring nature, not for...

original parent hull designed hull I am currently looking at the overall size of the tender/sailing dingy design. I know that I want a usable load capacity of approximately 500 pounds and a hull weight of <50 pounds. I started my design spiral at 9 foot long and 4.5 feet wide with...

I built an 8ft plywood sailing dinghy. Now it is time to make a sail. I am looking for plans for a small sail and a lot of them assume that you have done this before. Can anyone recommend plans to make a sail?

Looking for a deck stowable dinghy or tender plan in foam sandwich, 8' max length or nestable, seating for four as a rescue only; three seats with rowing preferred. Nesting and seats oxymoron? Google came up empty. Can I convert a tortured ply version if I single skin the foam panels? How...