Showing posts with label build yourself boat plans. Show all posts
Showing posts with label build yourself boat plans. Show all posts

Thursday, July 21, 2016

Didi Sport 15 Adaptive - Sportboat for those with Handicaps

I have written in previous posts about the Didi Sport 15, aka the DS15. You can see one of those posts at this link or use the search window to view the many other posts.

This design caught the attention of two sailors in Santa Cruz, California. George Arthur and Luc de Faymoreau are involved with an accessible sailing program, helping sailors with disabilities to get afloat and sailing. They asked if it would be possible to redesign the DS15 to be suitable for disabled sailors and still have good performance.

The resulting design process has produced a specialised version of the DS15, using the same hull and foils as the base platform but with modified deck and sail plan. The name of the new design is the Didi Sport 15 Accessible, aka the DS15A. We don't yet have a design page for it on our website, that will come with time.
The DS15, basis for the new accessible boat
The deck modifications are to allow two sailors to sit in tandem in secure seats. The crew are seated in a narrower cockpit that allows them to brace themselves against solid structure when they feel the need, or to lean against something solid. The cockpit has low comfortable coamings that crew can hook an arm or an elbow onto, to hold themselves to windward if they want. Severely handicapped or weak crew can be strapped into the seats with harnesses if needed, to assure their safety.
3D Image of the DS15A accessible sportboat.
The rig has been reduced in power because the crew will not have the benefit of the stability advantages from mobile crew and single or twin trapezes. The ballast bulb on the daggerboard will be standard equipment rather than an optional item as with the DS15. It has a smaller asymmetrical spinnaker as well, on a shorter retractable bowsprit, for more advanced sailors in the program.
DS15A sail plan, reduced power but still exciting.
Sail controls are all led to the two seats, with camcleats on the sidedecks or cockpit sole, to share boat handling functions between skipper and crew. Some controls can be operated from either seat, to help with sail training or to better serve crew with different disabilities. Steering is by means of joysticks mounted in front of each seat, driving cables that are connected to the tiller.

This boat is not only for those with physical handicaps though. It is also well-suited to those who feel that they no longer have the agility or fast reactions demanded by a powerful boat like the standard DS15. It is also less intimidating to many wives and other less adventurous people who would still like to get out onto their local sailing waters with less fear that their thrill-seeking partners are going to scare the daylights out of them.

The first boat is about to start construction in Santa Cruz, being built from a plywood component kit, accurately cut by CNC router and shipped from our kit supplier on the East Coast. Construction is radiused chine plywood, giving a round bilge hull that is within the abilities of amateurs. From this first boat they will make moulds, whereafter fibreglass boats will be produced for the use of their own program and to fill orders from other programs and individuals.

We will also sell the design on the same basis as applies to the DS15, so it will be available as plans only, plans with full-size patterns or plans with a CNC kit.

I look forward to seeing the first of these versatile boats sailing. I will update progress with future posts on this blog.

To see our other designs, go to our desktop website or our mobile website.

Friday, March 27, 2015

Cape Cutter 19 Launch in Cape Town

Nick Kulenkampff, of Cape Town, bought plans from us in November 2013 for the Cape Cutter 19, to be built in lapstrake plywood. I only received one question from him and that was on choice of plywood for the build. A few days ago I received another email from him, with launch photos attached. He launched his boat, named "Mimi", at Royal Cape Yacht Club, in February.

In his email, Nick said "thank you for a beautiful design and also for a set of plans that were spot on. I thoroughly enjoyed the entire process." From the photos it appears that he made a pretty good job of the build, which was also quicker than most at about 15 months.

This boat is available in GRP from Cape Cutter Yachts in UK. It is the smaller sister to our popular Cape Henry 21 design.

Here are some of Nick's build photos, with explanations
Making bulkheads. These are cut from full-size Mylar patterns, included in the plans.
Transom, laminated from multiple layers of plywood.
Bulkheads and transom set up on building stocks.
Bottom skin going on. Plenty of clamps needed.
Bilge panel gong on. Keel deadwood and wood bilge keels fitted. This bilge keel is to protect the hull when aground, serving purely as a support to keep the hull skin clear of pebbles.
Forward bottom panel. Fitting this panel is the most difficult part of the build, due to the amount of twist in the panel. The twist is what forms the fine bow for good performance.
Hull epoxy-coated, primed and ready for paint.
Building the cockpit. Nick's work is very neat.
Interior, looking forward, built  before fitting the deck.
Interior, looking aft. Painting in progress.
Deck stringers glued into pre-cut slots
Painted and brightwork being done. Almost ready to get wet.
This view shows why these little boats are so quick. That fine bow works vvery well.
Launch day. The yellow boat below the bow is "Black Cat", the Didi 38 that I built.
Afloat and waiting for her rig to be set up.
Thank you, Nick, for the set of photos. She looks good and I am sure you will have many good times sailing her.

To see more of this and out other designs, visit http://dixdesign.com/.

Saturday, November 22, 2014

Cape Henry 21 Professional Build in Ireland

Tiernan Roe is a professional boatbuilder in County Cork, Ireland. His company, Roeboats, specialises in building quality wooden boats. Mostly of classic styling, they build for sail, power or rowing. Roeboats recently launched a Cape Henry 21 that they built for a customer from France.Tiernan sent me these photos, which show some interesting details brought into one of our most popular small cruisers.
Cape Henry 21 ready to get wet.

Launched in a pretty setting.
First sail of the new boat.

The mainsail has still to be fully set up in these photos.
Compact sink & cooker unit, neatly executed.
Other side of the galley. Nice detailing.
Looking aft from the double forward berth.
You can follow the construction of this boat on the Roeboats news blog, from start through to launch.

After launch, Tiernan Roe sent me these comments. "She sails very nicely and I found her easy to single hand from the get go. The interior is pretty snazzy with frame and panel oak fronted drawers and a gas stove with tank fed sink.  Also the centreboard was a lot easier to operate than I thought. It's an awkward shape out of the boat to try and move alone."

To see our full range of designs, please visit http://dixdesign.com/

Sunday, November 16, 2014

DS15 (Didi Sport 15) Build in South Africa

Until now I have only shown the DS15 prototype, being built in Virginia Beach, USA, by Aussie Hunter Gall. Hunter's project is currently stalled due to circumstances but one of the the other builds is steaming ahead apace. This one is being built by Jim Foot in Port Elizabeth, South Africa. This weekend Jim applied the last coat of epoxy to the outside of his hull and is preparing to paint it.

This series of photos shows the basics of Jim's project up to this stage. This is a radius chine plywood design, with hard chine along the topsides. It is the same family of designs as the Didi Mini Mk3 and Didi 950.
Frames set up on building stocks, with stringers going on.

Stringers all done and bottom panels fitted.
Same stage, showing stringers running into forefoot.
Side panels fitted and first layer of radius progressing.
Stitch-&-glue detail of topside chine.
Second layer of radius going over first layer.
Completed radius chine, running smoothly into flat panels.
Glass taping centreline seam. Jigsaw joints of bottom panel can be seen.
Epoxy coatings started.
Nice finish starting to show.
Clean stern and nice finish.
Final coat of epoxy, ready for sanding and painting.
I will show more of Jim Foot's project as it progresses toward launch date. I tend to show the projects for which I receive the best photos, so please send me your best pics if you want to see your project on this blog or the Dudley Dix Yacht Design main website.