[AMG]

For the Cat lovers I have now refined a 130 feet version of the big 160 feet Explorer catamaran. One deck less but still with a lot of space and with the hydraulic beach-platform between the hulls aft.

/Lars

[YachtForums]

Beautiful!!! You just made the front page.

[catmando]

Originally Posted by BarryClay

Not if your passage making..Lars hit the nail on the head, Cats roll not rule, in fact cats should be..never mind it was a cat joke. Anyway, Waht might make it more "perfect is to really create a cat with a mono hull. That is a mono hull with sponsons.

I own a boat with that hullform. It's called an "air-entrapment monohull", or a "stabilized monohull".

Yes, slower cats may roll, but they roll much less than monohulls. At rest they don't roll much at all.

[AMG]

Originally Posted by catmando

I own a boat with that hullform. It's called an "air-entrapment monohull", or a "stabilized monohull".

Yes, slower cats may roll, but they roll much less than monohulls. At rest they don't roll much at all.

The difference between a cat and a monohull in movement is that the cat is "rolled" by different waves at the same time, making the hulls move less rythmic which is not always nice. I don´t know if there are stabilizers specially developed and used on big cats, but I have not seen it. I think the SWATH system with submerged sponsons might be a better solution to prevent this rocky movement. There are also other hulls with three or four submerged sponsons that could be good options, so there are solutions coming which we will probably first see on passenger vessels. But if the yacht buyer will go for such exotic hulls remains to be seen...

[AMG]

The smallest catamaran in this expedition style has a raised wheelhouse with a flybridge on top. This means you have semi-levels up from the maindeck.

This size is where an experienced yachtsman can handle the yacht without a crew but with a couple of good hands on deck. Still I think it should have a fully fitted crew area, which can also be useful to create a charter income.

More on this yacht will come as the TRY project is about to become a reality.

[catmando]

Lars I think the Hysucat hydrofoils would be an excellent addition to this design. What say you?

[AMG]

Yes, hydrofoils can add some speed and economy if you have a planing cat.

On this slowgoing LRC model I think it will rather add drag and collect debris and as this cat is intended to cross oceans I don´t think it is to recommend.

But with more power in a similar and light weight built design, she can of course be equipped with foils. We can call her Coaster and give her a profile like this?

[TRY]

Foils to the cat!

--------------------------------------------------------------------------------

The man behind the fixed foils for fast catamaran vessels is Prof Hoppe from the Stellenbosch University in South Africa.
Commercially you need to contact Gary Vos of Hydrospeed on gvos@iafrica.com.

The beauty of a cat hulled vessel (apart from many others) is the flexibility towards speed.
Due to the extreme slimness of the hulls (1/20 in many good designs) allows for variable speed options related to installed power, which is not possible with monohull hulls where you have to make a choice from the outset (displacement or planing).
Referring to the TRY 100 by Lars Modin for our large cat project, speeds of 15 kts cruising will be obtained with quite modest power units.
Increasing the power would allow to increase speed to say 25 kts; at these speeds the foils become an interesting option.

Relative to the Kingcat: I made the contact between the Kingcat owners and Gary Vos which led to the installation of foils with great success.

[dreamer]

Originally Posted by TRY

- 2 or max 3 guest stateroom (a crowded yacht is a nightmare)

For me, the more guestrooms it has, the more fun it is for special occasions.

[TRY]

Message to Dreamer:

Ik blijf bij mijn standpunt - 2/3 kajuiten is meer dan genoeg, anders krijg je toch te veel volk op je boot!
Ieder zijn standpunt, hé

[dreamer]

Potverdorie, een nederlandstaligen!
Belg of Nederlander? En wat doe jij in Cannes?? Heb jij een eigen jacht, TRY?

[catmando]

Lars the Try 100 is a beautiful design. Who is building her and when will construction begin? You will of course post pics of the project all the way through?

[AMG]

Our friend in Cannes is working hard to get all the pieces in place to launch the TRY project. First in the line is planned to be the TRY 130 and when it happens we hope that the whole process can be posted at YachtForums.

For those who prefer a monohull as The Perfect Yacht I have made a 110´design on the same theme with a raised wheelhouse. Here in Tuxedo Black...

/Lars

[jediwhite]

On most of the yachts that are being proposed the engine room is inbetween the owners area and the guest cabins
Why share the noise to both, when with the simple modification of moving the engine room aft, you can reduce the running noise to the guest and owner.
Also helps having the engine room near the aft lazerette/garage to facilitate repairs to the notoriously low reliability of toys, jetskis etc.
There are many different gearboxes which allow good shaft angle even with engines further aft, V-drives etc.
Also with relation to long passages, one of the biggest bugbears for crew is their quarters are almost always fwd. This is the worst place to be on a passage.There are a couple of yachts out there with aft crew areas (Philanderer being one) and those crews rave about it. Especially with guests onboard and moored stern-to when late returning crew do not wake the guests!!!!!

[AMG]

Designing a yacht is to take many aspects into consideration. What you point at are two of them and you see a design conflict already there. I think all of the yachts in this thread has aft engine rooms, except the two LRC cruisers where the aft stateroom gives the owner a better privacy. On smaller round bilge yachts, it is a better option to have the engine room in the gravity center and the props on shafts not too far aft where they usually get airborne in heavy seas. You also have the stabilizers fitted in the engine room. With all aspects, including available hight in such hulls, the central engine room makes most sense.

With the crew, I agree somehow on sailing yachts or bigger motor yachts. Sailing a modern boat is definitely a slamming experience in the bow, even if you often make the long passages without guests and can move aft. And you can´t mean that the owner should be happier to sleep forward then?

In port you have the problem of where to be when on the yacht. Crew traditionally have the foredeck area with their accomodation below. The owner and guests prefer the aft deck and live below. By shifting these living areas you have created a new problem.

As you see, each yacht has it´s ideal solution and I have examples on all of these configurations in the designers forum. But my best advise to keep the owners happy is to give them these yellow things to put in the ears before going to sleep. It never fails...