Boat Building � HH Catamarans

Log in or Sign up. Boat Design Net. This thread is really a continuation on the "Just an Idea! My Catamaran Fibreglass Building friend found a buyer for his Nacra 5. I've always liked cats more than tris. Mainly just looks. However, I've never built a fiberglass Building Fibreglass Catamaran boat or mold or plug, and I do not know the process, but I am willing to learn.

Here is my design. The boat will have a Wave-Piercing bow design, and I am planning to construct hulls that are much like the one used on the White Dragon foiling catamaran. The Building Fibreglass Catamaran building fibreglass catamaran I will be using will either be a small A-class rig, or a Nacra 5.

The crew weight will be around pounds sailing double-up, and around pounds single-handed. I will change the rigs accordingly. I want a single trapeze on both sides of the boat.

I want the boat to foil in knots of wind, and travel 25 knots downwind, and building fibreglass catamaran knots upwind. The foil setup will be an uptip foil Building Fibreglass Catamaran on each hull, and two T-Wing rudders. Thanks in advance! Also: One of the parts I'm most worried about is constructing the rigging.

Vang, Building Fibreglass Catamaran cunningham, sheets. They look hard to build and rig. Last edited: Mar building fibreglass catamaran, WerpKerpMar 13, In planning to build a foiling beach cat, the rigging is the least of your worries.

For starters - you probably won't even have a vang! Building fibreglass catamaran would strongly recommend investing plenty of time in research and gaining real building fibreglass catamaran experience in all the relevant facets of this project before you start mixing up Building Fibreglass Catamaran any pots of resin or cutting any cloth. It could save you hours of wasted effort in the longer run. MunterMar 13, OzFred likes. Doug Fibreglass Building Catamaran LordMar 14, Has anyone built a fiberglass one?

And what building fibreglass catamaran you think of my design? WerpKerpMar 14, Doug LordMar 15, OzFredMar 15, Not Building Fibreglass Catamaran Building Fibreglass Catamaran new they may be, but they are successful amateur designed and built foiling cats. Here is an idea I had, please check my sanity; what about a miniaturized version of an AC50?

It's got a proven foil system that shouldn't be too difficult to adapt to a smaller boat, Fibreglass Catamaran Building Fibreglass Catamaran Building I can try to build a wingsail, if I can't I'll just strap a soft sail to it. WerpKerpMar 17, AC 50's use foils that require constant adjustment while sailing. Very building fibreglass catamaran systems. There are numerous small cats using auto-stable versions of uptip foils that don'Building Fibreglass Catamaran Building Catamaran Fibreglass t require constant adjustment--but they do require raising a lowering building fibreglass catamaran foils every tack or gybe.

There are "Z" foils used on A Class Building Fibreglass Catamaran Building Fibreglass Catamaran cats and some others that allow the foils to be left. Other types of surface piecing foils as opposed to fully submerged foils can be building Building Fibreglass Catamaran Building Fibreglass Catamaran fibreglass catamaran down as well but when used on a narrow platform have reduced righting moment.

I still think building fibreglass catamaran is a lot of potential with a properly design foiler trimaran Doug LordMar 17, WK, there are numerous small cats using UptiP foils and a few using "Z" foils. About the only thing they have in common with the AC 50's is that they are catamarans. There are no production small cats that Building Fibreglass Catamaran Catamaran Fibreglass Building Catamaran Building Fibreglass I am aware of using wing rigs but if you did a LOT of study you could build one though I wouldn't recommend it.

Have Catamaran Fibreglass Building you considered building fibreglass catamaran or buying something like a UFO? Doug LordBuilding fibreglass catamaran 18, I was talking about using AC50 hull design adn Building Fibreglass Catamaran Building Fibreglass Catamaran crossbeams, rig and foils later.

WerpKerpMar 18, Because of the size of the AC 50 it would be almost impossible to literally scale building fibreglass catamaran the hull design.

It would building fibreglass catamaran be better to copy a hull design very close to your chosen length. An AC scaled down to Building Fibreglass Catamaran 18' including crew would be about lb-subtracting from building fibreglass catamaran leaves a maximum building fibreglass catamaran weight of lb. An 18' A Class cat Fibreglass Building Catamaran weighs around lb. So using your weights for two the scaled down hull would not work, using your weight for one about 80lb the platform would Building Fibreglass Catamaran Building Fibreglass Catamaran work but it is unlikely that 80lb would create enough righting moment.

You could see if you can find someone with an A that might Catamaran Building Fibreglass let you sail it or at least tell you if 80lb is enough weight for the boat. An "A" is as close to a scaled down Fibreglass Catamaran Building AC 50 as you're likely to.

Sailed with two at your weights in post 1 and an extra trapeze might just work except it Catamaran Building Fibreglass Building Fibreglass Catamaran wouldn't be legal in the A class. Last edited: Mar 18, OzFredMar 19, You must log in or sign up to reply.

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Best way to secure? Replies: 10 Views: 1, Replies: 8 Views: 1, Blueknarr Jun 18, Forum posts represent the experience, building fibreglass Building Fibreglass Catamaran Building Fibreglass Catamaran catamaran, and view of individual users.

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Galleons mannequin catamarna launched to sea inside Building Fibreglass Catamaran Catamaran Building Fibreglass of a 1500's as well as used to a building fibreglass catamaran. Afterwards I transfered a outlines as well as a scold angles Building Fibreglass Catamaran Building Fibreglass Catamaran Building Fibreglass Catamaran to the piece of plywood as well as minimize it out !

No formidable woodworking imagination have been longed for as well as we occupy elemental collection we already. Interjection for stuffing which hole. I am utilizing a little Loctite PL Building fibreglass catamaran Growth Caatmaran upon my newest try .

Photo Credit: Sabre Yachts. Although many modern boatbuilders eschew the use of wood, on high-end custom yachts like this Jarrett Bay, methods like cold molding are often considered Building Fibreglass Catamaran Catamaran Building Fibreglass Catamaran Fibreglass Building superior to more modern techniques. Back Explore View All. Back Types View All. Unpowered Boats Kayaks Dinghies. Personal Watercraft Personal Watercraft. Back Research. Reviews Boats Engines Building Fibreglass Catamaran and Parts.

How-to Maintenance Buying and Selling Seamanship. Back Services. Boats PWCs. Boats for Sale View All. Or select country. Search Advanced Search. If your Building Fibreglass Catamaran Building Fibreglass Catamaran mind is for sure set, see if you can't find a set of study plans as close as possible to what you want it never Building Fibreglass Catamaran Building Fibreglass Catamaran hurts to educate yourself even though you don't use the design.

The worst that could happen is that you might learn something, So the Building Fibreglass Catamaran money I spent on my study plans was worth every dime, and I often chatch myself daydreaming through them, good luck donjames djvcwg yahoo.

I am Building Fibreglass Catamaran Building Fibreglass Catamaran in the process of getting everything finalized to build a 37 foot cat. The cost??? I am not even doing everything myself. Hope this helps! Pos , Building Fibreglass Catamaran Sep 4, Rodney, I am not familiar with the Tempest 42, and I don't know where it is located, but presumably it is in the US, somewhere on the east coast.

Moving the boat is one primary concern, you want to move it the least amount of distance possible. Likewise, Building Fibreglass Catamaran you would like to keep it relatively close to home so that inspecting it will be relatively easy and lower cost from the travel point of view.

They do all yacht work and would certainly be capable. Unfortunately, I do not have a contact number or person there.

You can speak Catamaran Building Fibreglass with Eric Goetz himself. If the boat is elsewhere in the southern half of the coast, you may not want to move it north. Here Building Fibreglass Catamaran Building Fibreglass Catamaran in St. Augustine, St. Augustine Marine is quite capable. They are a yard specializing in new construction and refits. They can do fiberglass and metal construction Building Fibreglass Catamaran Catamaran Building Fibreglass Catamaran Fibreglass Building to very good quality. There number is You can talk to Rick Barile, the general manager.

All of these builders are capable of handling the 80' mold as well. I hope that gives you some leads. Eric Sponberg , Oct 18, Try Wharram designs If you haven't found your project yet They are usually very easy to build and inexpensive.

If you prefer the "polynesian" look, instead of the modern plumb bow look, then this might be for you. Thank alot. IronSailor , Feb 8, Give me ring I have some plans of some CSK cats if interested. Hey Freeman, You ought to Building Fibreglass Catamaran Building Fibreglass Catamaran think of going electric with the Solomon Technologies system.

Not to mention it can regenerate to give you all your house power when you're sailing Catamaran Building Fibreglass Building Fibreglass Catamaran Fibreglass Building Catamaran Do you want a "boat" or a "yacht"? Eric Sponberg , a top notch professional, is correct for a properly engineered yacht. Look at a proa Building Fibreglass Catamaran from Rob Denney. Decided on a cat? Finished layers may be finer cloth over courser cloth, over woven roving and mat. Three primary resins are in common use Aluminum Boat Building Supplies Uk in marine construction � polyester , vinylester , and epoxy.

All resins have materials safety concerns and require care in their use and handling. Polyester is the least expensive and requires breathing protection because of the VOC emission Volatile Organic Compounds�nasty, smelly fumes.

Vinylester is chemically similar to a hybrid of Catamaran Fibreglass Building polyester and epoxy, and performs best with fiberglass. It has some adhesive qualities which polyester lacks, it shrinks less during curing, and has better impact resistance.Building Fibreglass Catamaran

The added strength of vinylester coupled with increased water resistance makes it an attractive option for many catamaran builders. It costs less than epoxy, but Catamaran Fibreglass Building still has better performance than polyester. Epoxy is the most expensive, but is three times the strength of the others. It offers the best adhesion and Building Fibreglass Catamaran the only resin for building structural elements with carbon and aramid.

It resists water intrusion better than the other resins, resists blisters, emits no VOCs, and Building Fibreglass Catamaran Building Fibreglass Catamaran Building Fibreglass Catamaran shrinks less. The major drawback is it is more brittle if it takes an impact.

They can build quality boats from all material combinations, but Building Fibreglass Catamaran price and performance will drive materials choices to keep some boats more affordable. To a point, you can make it thicker. As it gets thicker, it Catamaran Building Fibreglass gets heavier. A hollow shape can take more compressive load than a solid one of the same weight, and the same principle applies to fiberglass Catamaran Fibreglass Building Building Fibreglass Catamaran Building Fibreglass Catamaran construction. Consider an I-Beam used in building construction.

It has the same strength or more as a solid rectangular beam of similar mass. The same principle Building Fibreglass Catamaran applies to cored construction with fiberglass. Making a sandwich of two layers of fiberglass with a light core between them allows for the greater strength with weight savings. There are drawbacks � the biggest risk is damage which breaks the skin, which can let water into the core. Earlier cored construction Building Fibreglass Catamaran used materials prone to saturation and rot if they got wet.

Some builders opt to do cored construction above the waterline and solid below to minimize Catamaran Building Fibreglass some of these risks. But the advantages in weight savings and increased stiffness offset the drawbacks, and there may be a few other side effects Building Fibreglass Catamaran Catamaran Building Fibreglass Building Fibreglass Catamaran like sound and temperature insulation.

Like resins and Building A Wooden Ship Model Videos fibers, core materials offer distinct advantages, disadvantages and price points. Most builders have adopted a hybrid approach, building solid hulls below the waterline, and cored hulls and decks above. This gives a balance of weight and safety. Balsa is light and inexpensive. The Building Fibreglass Catamaran Building Fibreglass Catamaran Building Fibreglass Catamaran first cored construction used balsa, but it has the disadvantage of being wood. As a natural material, if it gets wet it can rot and break Building Fibreglass Catamaran down. Closed cell foam cores give good strength to weight savings while minimizing water intrusion.

Divinycell is a popular PVC foam core, though there are several choices with different densities and compressive strengths. Some foam cores are not suitable for heat treatment, but infused or vacuum bagged boats like the Outremer Building Fibreglass Catamaran Building Fibreglass Catamaran and PDQ do well with it. Honeycomb cores are often the most expensive, but also give some of the best strength to weight ratios.

Honeycombed cells Building Fibreglass Catamaran made from resin cured aramid papers are some of the best, but also among the most costly. They offer good stiffness, but can be hard to shape. Aluminum and other resin-infused papers are other core materials builders can choose from.

When building a hull, there are optimal ratios of fiber to Building Fibreglass Catamaran Fibreglass Building Catamaran resin saturation for target strength and weight.

Resins are also a significant material cost in building the boat, so over application not only increases weight Fibreglass Catamaran Building Fibreglass Building Catamaran Building Catamaran Fibreglass but adds cost. Each approach has strengths and limitations, and an impact on the bottom-line cost to build the boat. Any voids or air pockets in the laminate can be disastrous; these techniques have been developed to increase saturation and reduce the risk of voids. Wetting is done with a brush, and Building Fibreglass Catamaran the laminate is rolled out to remove any air pockets and voids.

This is the simplest way to lay up fiberglass, but also the least Building Fibreglass Catamaran Building Fibreglass Catamaran precise and consistent and will use the most resin. Skilled craftsmen have built some of the finest vessels in the world this way.

A consistent thickness Building Fibreglass Catamaran can be difficult, but this is a low cost construction technique which makes a very resin-rich laminate. Using sprayed fibers gives lower strength in all Building Fibreglass Catamaran Building Fibreglass Catamaran directions compared to meticulously laid down mat and bi-directional cloth.

But it is a quick technique popular with mass produced, smaller boats. It is an excellent Catamaran Fibreglass Building Building Fibreglass Catamaran technique for parts with complex geometry where weight is not an issue, but you will not see it often in catamaran construction.

When an open Building Fibreglass Catamaran molded component has been laid up and wetted with resin, vacuum bagging takes the process a step further. After the wetting is complete, air tight plastic bagging is secured around the wetted area, and the air is pumped out of the bag. The vacuum pulls excess resin out and collapses air pockets. The Building Fibreglass CatamaBuilding Fibreglass Catamaran ran goal is to get thorough wetting and produce as strong a laminate as possible without excess resin.

Knysa and Leopard are two builders that Building Fibreglass Catamaran use vacuum bagging on their hulls to reduce weight. For resin infusion the cloth, matting and core is laid in place dry, then sealed in an Catamaran Fibreglass Building air-tight bag. A vacuum pump attaches to one side of the bag, and on the other a feed for resin.

The vacuum sucks the air Building Fibreglass Catamaran Building Fibreglass Catamaran out of the dry cloth stack, then pulls the resin through the stack, infusing and wetting it. Resin infusion, when done right, gives the lightest, strongest Building Fibreglass Catamaran laminates with no voids and the minimum resin weight for maximum strength.

Instead, the cloth is assembled, vacuumed, then heated to kick off the curing process.

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