Historical multihulls

You guys have probably seen hydroptere.ch :
click:

 

Yup, kind of a sister ship to Happycalopse (which was wrecked in a storm) I think. Then Bertarelli afterwards upgraded to Le Black.

It is a cool boat, no doubt! Even the outboard motor looks good on it, Hump101 should swap to one of the F40 trimarans and his motor worries would be simplified!

 

I believe this is a Historical multi-hulls thread. Please refrain from off topic posts

 

Some modern designs are immediately historical and important, BB.
Bumpkin is the term, Blackburn.

 

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Particularly when some of their features are compared to Duster...
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Didn't realize that Amaryllis II had boards in the hulls:
click-

 

Haha! I doubt very much that "My way" handles much better than my cat in any kind of seaway.

 

And which type of boat won the last few years of the F40 series...?

 

Thank you Gary!

I did an image search on that now
and was rewarded with lots of beautiful bumpkins.

...

Here's another Duster question:

What do you think is the nuts and bolts of where the stay comes down to a shackle and attaches to an inverted V which comes up from the hull?

 

I am familiar with boomkin - extended horizontal spar usually used to sheet a mizzen on a small yawl/ketch rig - I had to look up bumpkin. Where I'm from we refer to rural motivation-free folks as country bumpkins.

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CutOnce

 

Cutonce, boomkin sounds more refined - but bumpkin is what I read/heard - so you can take your pick. I know I belong in the latter bracket, ha.
Just guessing, Blackburn, but the inverted V connections appear to be there to spread the shroud loads from float gunwhale and inwhale at same time.
Also, being somewhat pedantic, the M&M Alinghi/My Way/Happy sisters are trimarans; their central hulls are mostly immersed or touching water - whereas Le Black, D35 and Hydroptere ch. are
cats with central framing/pods or semi-hulls which rarely touch down - as is the case with Duster, unless a calamity occurs.

 

I should have clarified I was talking about when motoring! My boat didn't win in the years when the cats won, so no argument about performance under sail.

 

I'm amazed, Coxcreek: here you are accusing all trimarans of being pedantic.

lol

But it's a good point that Duster is in the same company as Le Black and the D35's, apart for the centerboard of course. Pretty good company!

Like I said once, they are in fact closer to trimarans, except that their center hull (or 'Y' or spine) only gets wet from the occasional drop of champagne, from above.


The shroud attachment; I was wondering if it looked like that on account of how Duster's hulls are meant to flex?

 

Well when it comes to motoring, then my little 225hp Everglades 223cc can probably also beat My Way.



A friend of mine who's been forever modifying his Wharram catamaran - he'll have been doing it 30 years soon - built a nice pod behind and under the foot of the mast, where the engine can be raised and lowered and is as shielded/protected as it can be, sans being mounted on a stern. And that's pretty ideal with regards to positioning the weight of the engine.

Want a picture of it?

I guess you don't have a deck behind the mast, which makes it a little more difficult. But maybe it wouldn't do any harm to have a carbon beam between the beams, as on the Ventilo M2's?

 

Funnily enough, the reason I bought this cat is because it is easy to mount a pod between the hulls in which to mount a propulsion unit, as we are doing some research on propulsion unit design. Otherwise I would have bought a tri.

 

The maxi trimaran Geronimo under the guidance of Olivier de Kersauson set a remarkable number of records some of which still stand today. Geronimo is now being "reborn" at Multiplast as Thomas Coville's new solo mount for the 2014 Route du Rhum.

http://youtu.be/DJEdEJkzpDw