Layout and sailplan for Halibut (ver. B)

Here is the (sail-friendly) version B of the Halibut, shown with thwarts, oarlocks and rig. I have made the cockpit longer by reducing the buoyancy tanks at the ends a little. I suggest sticking 50mm thick foam to the topsides instead. I also have an idea of tying a row of fenders to the gunwale, and preferably first sew these into ‘a sausage’ of canvas. This will have three purposes:

• ·         Fenders
• ·         Sprayrails
• ·         Added buoyancy

The diameter of the fenders could be anything from 50 to 150mm. Personally, I would aim for around 80mm if available.

In addition, I have sketched on a rudder and a bow-board. The bow-board can be constructed in seventy-two ways. Not sure which version to go for, but all versions will have some sort of wooden peg or weak link to let the board break free, in case of running aground.

Cheers,
Arne

Gary wrote:

Well Arne's rig has caught my interest. I'm looking for a JR to put on my Bolger Cartopper. Though 5 sq m would be better. I did draw up something but i think I lost it in a tidy up.

Gary, if you multiply Arne's dimensions by 1.5, so that the battens become 3m long, the area works out at 5.7sqm which would be quite a good size for your dinghy, I think.

Well Arne's rig has caught my interest. I'm looking for a JR to put on my Bolger Cartopper. Though 5 sq m would be better. I did draw up something but i think I lost it in a tidy up.

David Tyler wrote:

I would prefer to design a dinghy because a 'client' has approached me with a specific list of requirements and told me that there is no existing design that satisfies them. But yes, first we have to learn how to design dinghies.

Yes,

but in my case I am the ‘client’. Good, lightweight tenders are not to be found here, so one has to build something. One tender I had (looking like a scaled-down speedboat) was so bad (.. it was a trap...) that when a fellow asked me to borrow it for the weekend, I said yes on the condition that he promised to sink that thing on deep water after use. He made big eyes when hearing my request, but sure enough, after having ’enjoyed’ it, he understood, and he sank it.

Arne

I was going to suggest modelling at 1:5 as a point on the learning curve.

How about making PDFs at 1:5 and taking them to a copying shop for printing on thick A2 size card? You can then cut out the pieces with a craft knife and sew them together. This would be the quickest way I can think of.

Ping pong...