WHARRAM Catamarans - Episode 152 - Lady K Sailing
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Catamarans, Sailing Catamarans, Sailing Cats - it all starts with Wharram.
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I am an Australian who was living in London in 1980- 22 years old never sailed before in my life. Long story short myself and 2 mates sailed a 34ft Tangaroa Wharram Cat from London to Spain, Portugal, Morocco, Canary Islands then across the Atlantic to Recife in Brazil. Then 45 days non stop to Capetown RSA through the Southern ocean. Suffice to say the Wharram Cat managed it.
The Cat was 2 x wooden hulls and deck with Dyna sheathing with slatted wood middle decking open to the sea ,with laminated beams bolted together using truck tire pads as flexing joints either side. All rigging was lashed with ropes and regularly retightened as necessary. .It had a ketch rig and a huge sea anchor consisting of a bridle and 10M x 200mm ship hawser with chain lashed to its eye head. trailing behind with 75M rope to slow us down in huge following seas, under bare poles.
White water would surge up between the hulls to at least 4 ft above deck level in huge Southern Ocean, Sth Atlantic and Bay of Biscay storms,.
A very seaworthy boat that transported 3 guys safely from one end of the world to the other using only a sextant , watch , compass and BBC World Service shortwave radio time signal, broadcast.
A little short on room, can be very wet, but a great boat for warm weather -tropics cruising and very fore giving vessel. Fast at times with aft quartering -& beam reach winds and following seas, much like any boat. Can moor up om any beach, fit into the tiniest European ports not made for yachts, all due to low draught, easy to manage and intention to do so.
After sailing this vessel I can only agree and conclude that this is why and how the Pacific nations sailed and populated the entire Pacific region. The Wharram Cat provided me with the opportunity to learn basic seamanship, sailing and navigation skills that still see me cruising and sailing 40 years later today.
I highly recommend these vessels as an ideal first boat for anyone regardless of existing or previous skills or experience.
Tell me more ... please
@@anthonyrstrawbridge I don't know what further info I can add other than the layout was a bunk cabin one side with cooking section in small stand up section in the middle with seating one side against hull then navigation table aft with hatch access above and batteries below chart table facing aft. Other hull was 2 x bunks Fore & Aft with library/works bench in middle stand up section with seating again against hull,. 2 x Aft compartments with deck access. The Port one had a toilet which was rarely used and then only when visible eyes were upon us. The S/Board side we rigged up with a steering seat & wheel connected to the rudders via pulleys and had an old Pram frame & Cover used as a Spray Dodger allowing us to steer and keep out of the worst of the weather. All very rudimentary with only electronics being an old LED spinning Depth Sounder which was used more for navigation purposes due to the shallow draft not being an issue at only 0.5-1 M.
Drinking water was carried in collapsible plastic square containers 15L ea which fitted perfectly into he bilge. Water was regularly replaced via rain collected from boom on long hauls 30+ days ( after letting the rain wash all the salt from the sail)
The motor was an antique Single cylinder Stuart & Turner hand cranked petrol engine that was totally crap. It had a shaft with a metal plate above the prop to keep it submerged under power. We could raise this when sailing via S/S wires either side and worked very well. With a decent 10-15hp reliable diesel engine this would be perfect. We only used ours for getting into or leaving port. As such we sat in the doldrums from North-South Atlantic for 10 days. When we finally arrived off Hout Bay Capetown after 45 days non stop from Recife Brazil the damm Hand Crank hand le broke and we couldn't start the engine. The flywheel was too heavy to turn (another story)
I would recommend a central cabin living steering location built directly in front of the Aft beam area to provide more protection from the elements and also changing the 2 x central stand up cabin areas in each hull sliding access hatches from a side access to a rear access.
NEVER NEVER GET RID OF THE SLATTED DECKING OVER THE MAIN AREAS BETWEEN THE HULLS. There is always a temptation to do so to provide increased living area like all standard CATs today. This is the critical difference and seaworthiness between a Wharram CAT and any other modern CAT .
I honestly shudder to think how any big or small modern CAT would not be just be picked up and tossed either end on end or over sideways when you encounter week long serious storms and guaranteed rogue waves coming from another direction. I copped one of these and was thrown into the water between the hulls whilst steering the rudders by hand, but had a harness connected. The whole boat was at 180 deg as we fell and side slipped down a 10M+ wave in the Bay of Biscay. A standard CAT with all the underside deck between the hulls would have had too much resistance to the wave and I honestly believe it would have capsized. This is just one story!
I'm currently sailing in the tropics in Indo and Malaysia at present and CATs abound everywhere and are wonderful for their space and fast sailing benefits, but don't take them anywhere near 40+ deg North or South. I will have a lot of protractors on this subject, but I can only speak from extended experience in a CAT in serious seas.
To finish off I ended up building my own 48ft fiberglass/Foam core Monohull with twin rudders and a lifting 2.2 ton S/S Centreboard that provides me with a 1.4M draft Up and 3M down. A compromise between the shallow draft of a CAT and the benefits of a monohull!
I still am a total advocate for the Wharram CAT for their sea kindness in all weathers, easy to sail and lots of fun.
Hope this is of interest.
@@mikefoletti1775 Thank you! Your knowledgeable experiences and details description is valued. I'm looking to forward to revisiting the matters.
I think the tone touched or answered several lingering thoughts regarding the utility. Found myself selecting ambiance wall sconces around a dry bar, and a comfortable seating arrangement for three salts. Ahh the romance.
More so I think you really drove the point home regarding particular hull and sea criteria. So, the light kinda brightened hitting on the origins. I now see me myself replicating these, charting some routes and investigating my dream routes between the Bering Sea and North Pacific Ocean. Cheers
My wife and I first met James and Hanneke at a Wharram Hui (gathering) in Islamorada, FL, ten years ago. Five years ago, we sailed with James and Hanneke, on Gaia in Western Greece, for two weeks. James was in his late eighties, at that point, and my first question to him was "How did he feel about outliving all his critics?" His response was the first of many interesting and enlightening conversations. Truly the trip of a lifetime.
My Dad built a 27’ Wharram back in 1970-71 in North Ft. Myers, Florida. He corresponded with James Wharram at the time about modifications he planned and I used to have all those. I lived on it for a couple of years and we all enjoyed it a great deal.
Fascinating story about a boat that a young English guy, Mark, (Wilding Sailing) has spent the last nine months restoring in Amsterdam. Before purchasing his boat he visited the wife of the creator, Hannike, ( recorded on video) and the sheds where the originals were built. Hannike visited Mark while he was restoring his cat in Amsterdam. When I first followed Mark trying to buy his Wharram…I kept asking myself the question why? I didn’t find them attractive. But when a separate contributor produces a video like this my curiosity is sparked! Thank you. This was a excellent! ⛵️
I owned a Tiki 38 for 15 years. She was (and still is) a magnificent boat. She’s 30 years old now, still sailing the Mediterranean and still as beautiful as the day I launched her. I’d like another to take to the Polynesian Islands, I’ve had other boats before and since, but my heart is still with her.
I’ve just discovered Wharrams designs. I’ve been dreaming of building a boat and the simplicity of them and the durability and sailing abilities of these boats is impressive. Great job on the video too. Love the history of it all
James apparently had no money, no reputation, no sailing experience and two girl friends on the same boat what a legend.
What is a yacht with no lady on a board!)))
His experience would have been so wild for sure😂
The first thing I thought of when you described how he joined the hulls was, independent suspension.
So much fascination with naked girls that you forget some bare essentials: James lifelong fascination with Polynesian cultures of boating. His life long sailing in his own designs and understanding dynamic stresses perhaps better than any other designer. His many publications. His choice of epoxy and glassmat for adding strenght and waterprotection. His working with Hanneke as a co-designer. The incredibly thorough designing that leaves very little room for changes without consequences to many other aspects of the design. The labour intensiveness of the designs that make these boats far from cheap. His lifelong commitment to deep V hulls and to double enders for safe and comfortable seagoing. His unique rigging and sailplans. And: his lifelong achievement Award from the British Classic Boat Magazine.
Mark from wildling sailing visited hannike. He recently purchase a used pahi for 2000 Eros ( about the price of the plans) which came with the plans. Hannike helped him inspect the boat, and he is in the process of rebuilding it. He’s got a great head start by having lots of the construction completed, though he does have to repair and replace some of the parts, but warrants are designed so that you can easily inspect and repair the boats. And you can find warra built 50 years ago still sailing blue water.
After hearing about problems with the newer large cruising cats ( bulks heads breaking and so forth ) i believe that Wharram and the Polynesians had it right keep the boat somewhat flexible and easy to repair...L.A Rob
The Polynesians didn't just use the stars. They used the currents, aquatic life especially birds and the taste of the water.
This is how Captain Cook 'discovered' the islands in the pacific and made it to NZ. He had a Tahitian navigator who used the above methods.
i just watched a james wharram youtube about when they built a boat to donate. and the native skipper used those skills, not even a sextant and ended up perfectly on target, after quite a long journey with bad weather if i remember right.. I had suspected those techniques knowing how we used to find out fish'n holes on lake michigan and lake superior, at night, even in dense fog, back, 40ish years ago... we never owned a sextant, gps weren't even a concept yet (well except with the gov't ). my first gps, years ago. i trusted my senses finding the channel a lot more than that hit n miss gps, whether it be in the dark on a starless night or dense fog.
I bought a Wharram and the lashes hulls had me a little anxious. I unlashed the hulls to do some restoration and I was not super confident about my ability to get back together tight and right. I did some research on the proper way to lash and took my time. Now having done it and sailed it in some very rough conditions, I am now very suspicious of solid hull to beam connections in modern catamarans. A crack that allows any movement in a solid connection will only get worse and will eventually fail. Wharram lashed connections are visible and renewable even at sea. Makes me feel mush safer.
Yes the lashings have me concerned as well, 1 million waves can work things loose, apparently it works but Id rather see a more permanent construction method.
One of the most entertaining episode I saw on your channel so far :) Great job
Pilgrim Sailing has a documentary from a few years ago where they build a Wharram 38. Then take it from the USA to France. Thoroughly impressed me then on the design's capability as well as its reasonable build requirements. Thanks for more info on it.
Perfect timing. I'm sitting on my catamaran preparing to sail from Raiatea, Tahiti to New Zealand. I'm at the very island where the great Polynesian explorers set off, and you post this great review of Wharram. -thanks
Yes, the rope lashing is critical for flexing during the sailing... Other modern solid cats , with solid decks have issues...slamming & risk of capsizing! Ever since hubbie & I researched boats many years ago... I can definitely say that I love/trust the Wharram Catamaran designs! 😀
Naturism promotes #HEALTH via air circulation/natural vitamin D s☀️n exposure , not seeing "the problem" or how it has any impact on his excellent designs. 😊😍❤️
PS - Ruth was his actual wife from my understanding...
You are absolutely the best, providing credible information for cruisers and affectionados.
Thanks for doing this one. Love the Wharrams and seriously considering building a Tiki 46. They look quirky at first, but the more you study them the more they capture your heart.
True. At first I to a look at it 20 years ago. It look very odd. Few years later I got in love for it.
Polynesians; ahead of our time building such well built & functional vessels from the raw elements at hand provided by nature & traversing the expanses of oceans.
Rope lashings! Flexibility! What nails & screws...? I'm new to all this; thanks.
Now you got me thinkin'.... Fare winds...
The irony is how much I talk with my partner about a subject. Then you do a video on it. It’s great.
You mean, about two bodies? Sorry, hulls? :)
A lot of us look long and hard at Wharrams, On youtube there is a video of the building and Atlantic crossing of a Tiki 38,( Channel is Pilgrim Sailing ) seems like a lot of boat and its FAST ( 16.6 kts max recorded, on a fully equipped and crewed cruising boat ). The lashed construction seems questionable, but the lashings are all inspectable, out in the open. Easily checked and replaced, even at sea. Rudders tend to be lashed nowadays as well, again, easily checked, replaced, fixed. Everything is simple, repairable, maintainable. Its a different design philosophy. Wharram even has his own windvane self steerer design which you can build yourself.
Ohh, and your windows editing software, live video is oversaturating majorly, Overlays are leaving a sliver of the underlaying live video showing and your background looks overly unfocused or smoothed.
There is a Wharram builder on our island in Bohol, Philippines- owned by some Brits. They must be a franchise holder.
My dad and my brother in law both worked on Wharram boats at Devoran in the early 90's. They built the Tiki 36 model, which was actually not lashed together, but had a pin mechanism that allowed the hulls to rock about the beams. Outboard of the pin was a pair of big rubber blocks that sandwiched the end of the beam to damp the tendancy to rock, but retained the flexibility of the overall structure. The 36's were a professional build that used West System epoxy - lovely boat. I spoke to James and Hannika A few weeks ago, they were both well. Great video!
Considering the recent structural issues with Lagon Catamarans, the Wharram design of intentional limited flexibility is an interesting contrast. Thanks for the Video
love this one!!
Thanks for watching!
Friends of mine just built a Wharram Tiki 26 and put 2 electric engines on it. They're using it for dive charters. They seem to like it so far. I'm on a 50' MY and will be building a 50' aluminum cat, but the Wharram is a proven design.
Possibly the most inspirational video you've done. Wow. Thanks
Great delivery and a fine justice to James and his comrades. Thank you man!
Good coverage of James Wharram! I read “Two girls two catamarans” years ago, and just rescanned it. I don’t get much “Sailing Elite Envy” from his writing. He describes himself as being ahead of The Establishment in design. I did find a recent article that lists his eventual honors and recognition along with “initially shunned” but I think James was too busy to worry. My hat is off to him!
My wife and I are planning on building a Wharram catamaran when we move closer to the 🌊, next year.
You can do it!
Great story! Thank you so very much!
Had a great night drinking beer on Windora with James Wharram, I was working in a Boatyard in Richards Bay building two Pahai 63's. Phil
I was lucky enough to see a presentation by James. His slide show frequently included naked pictures and he was always confused by reactions to the images.
We had a 27 footer many years ago, first Wharram we had ever seen, only used it as a day sailer, boy did it get up and go, great fun boat.
Yes, quite an interesting and unorthodox character was Wharram and I too find his boats of interest and am honestly slightly interested in having a nacked crew adorning my deck as well! Fair sailing, Captain Ray.
It shows that we just over think everything.
Great story. Thanks !
Before you build a catamaran check out a trimaran and the story of Jim Brown. (I can’t imagine you don’t already know of him and his boats.)
Similar story of unconvention, but a better sailing boat.
Jim Brown and now his partner sell plans in the same fashion. Have some new building techniques for construction, as well as design.
Would love to hear your take on the Trimaran vs Catamaran, and the modern evolution of trimarans from Browns to Neel’s and Rapidos. And how Trimarans now dominate as the fastest sailing boats.
You are the man to build a Wharrem. I am certain of one thing, you will have a lot of interest following the build, I will be one of them.
Just bought the design book today and came across this vid, fascinating stuff!
Love watching your vids and this has to be one of the best, cheers.
the 1960 and 70 was a mad time here in the UK :) my parents were hippyies and lived in a commune in the late 1960 , I am the result lol :)
Loved the video.
Hi Tim
As always, thank you for the awesome material and all the research you do for said boats. I do live on the other end of Ontario, but it would be great to meet you for a cold one, one day
Brilliant! Kudos!
This is why bridges are built to move. "Sailing Lucky Fish" Has an early episode where they show the lashings in great detail.
I has to mention Kiana and her project "Women and the Wind"
One of Kiana's 4 Atlantic crossings in her Wharram cat: czcams.com/video/227oV4zLRhI/video.html and Kiana has an amazing rear view, BTW.
Her first 2 videos has about 1.2 million views which got her 35,000+ subscribers.
That's some kind of a feat to pull off.
Agree, there is a fascination to Wharrams, they are somehow organic and in harmony with the sea! Just looking at one you feel the urge to release the mooring lines and sail over the horizon... and there is such a myth surrounding them, like an old VW van 😎
Been waiting for this one too.
Funny though, the legend is still alive and keeps selling his multihull plans! :)
@@awabooks9886 : lives double-hull. ;)
If you really want to see ancient Polynesian boat designs, you need to visit the Maritime Museum in Auckland, New Zealand. I've flown there twice in pre covid days, and I've had to make time to visit. It's amazing what they sailed on to cross oceans, though not sure about their wardrobe choices, if any, or their sense of adventure . In front of the museum, there's a World Cup sailboat design with what seems a 15 foot keel, a big contrast to what's inside.
Well researched and well presented story. Thanks for bringing it ti us.
Yess the video ive waited for !
A Wharram was certainly the first cat I ever listed my ice on
I think the Wharram "lucky fish". Is for sale. Im not sure of all the details. But they have a youtube channel worth checking out. There is an episode dedicated to the lashing system that's really informative. Well worth a good look.
"Katfish"(Pahi 42) is for sale right now in Hervey Bay. This is a fantastic vessel well fitted and will probably be gone quickly.
Thanks man. Never had the hook so bad.
Great video on James wharram. Thx for that.
I like the Pahi but sizes. 23 foot beam and 39 feet length. Less than 3 foot draft. It's gotta fit down Erie canal. I like the wing sail too.
Wharrams are very sea worthy boats and many of them ,of all sizes, have crossed oceans.
the lashings worry a lot of people but if you take a closer look at it it is actually very strong. I know that a 46 foot Tiki, if lashed correctly, has a breaking strain on each of the lashing points of 25 ton, and there are 16 in total on the main beams. If one would measure the success of a designer by the amount of different models designed and of course by the amount of plans sold and build than by that James Wharram is the most successful boat designer in history. No one is coming even close.
Not "just" the stars. The ancient Polynesians navigated by knowledge of wave and wind patterns, orally transmitted knowledge of 150 stars, and observation of sea birds and Tom Cunliffe.
also the taste of the water. Captain Cook used a Tahitian navigator on atleast one of his voyages of 'discovery' in the pacific.
you’re too funny!
Captain Cook and his crew were amazed at the size and manoeuvrability of Polynesian sailing double canoes. Captain Cook detailed how if suitably armed and crewed could pose an issue for any British ships.
The stars and the waves.
Wow 😳!
Awesome video. Keep up the good work.
I have a Marshallese stick chart. You get a main wave from the trade wind, a reflected wave when it hits an island, and a refracted wave when it curves around an island. This is MAJOR way they navigated the islands. Look up Wave stick chart. Good video. Sailed on a Wharram after it came off the West coast and arrived in Majuro.
I love the Catamaran Wharrams
Thanks for this video. At 6.30, James Wharram with two French real sailors of the South Seas : Bernard Moitessier and Henry Wakelam.
You would be the best channel to do a build!I would really support it!You can do it!
Their are two in the bay I am in right now and one of them arrived after crossing the Atlantic and won the fastest first leg of catamarans although it was the smallest
Sailing Tangaroa.....couple sailing the West Australian coast.
I completely agree with you here. Damn fascinating boats and designs. This may be your next adventure. Now for the crew…………
Over all, I would call 'Polynesian catamarans', as James likes to call them, the Westsails of multi hulls.
I think they are more stable and mor seaworthy than modern cats.
This is because speed performance is not a major design goal. The sail areas tend to be smaller and the over all aspect ratios tend to be lower. And because there is usually no center cabin, the Center of Gravity tends to be lower too.
They also have no keels or boards of any kind. The twin "'V" hulls act as long, shallow keels. They go to windward adequately, but not well by most sailboat standards.
The accommodations are quite spartan as well, as they are all in the two very slender hulls. To get what you have with LADY K, you are going to need a much bigger boat, probably well over 40 ft. And it's going to have about a 20 ft beam.
You'll be anchoring more than you will be docking.
When I was in my early 20's, I tried my hand at designing one. I stuck to the basic principles, but made a few changes. I nixed the "'V" hulls in favor of dory like flat bottom ones. I added long shallow keels to them, that were about half the WL length, and I dispensed with lashing it all together.
I went with bolts and rubber pads.
Other than that I followed the design principles.
It would have displaced a ton, fully loaded, and would have been 25 ft long and 12.5 ft wide.
I think it would have gone to weather noticeably better than a Warrham, but nothing like a modern cat or decent keel boat.
Another thing you should consider is how you're going to power it.
You probably won't want engines in each hull. They will take up too much precious space.
“You go to Brooklyn”😂😂😂😂😂
I've sailed on some Wharrams including a small 21' that sailed from Fiji to the Caribbean. These boats are affordable, easy to repair, seaworthy, and have all the benefits of spaciousness and stability that catamarans are known for. They are, however, a bit on the slow side and don't sail to windward very well. There used to be a company in Phuket that bareboated them. I would highly recommend doing that before building or buying.
Any more info about this company, ? sounds a good idea .
There's a new channel with a girl sailing the world on a wharram sailboat. She's a total badass. Kiana something... Keeping with tradition there's a little nudity too.
Very interesting guy for sure. I'm not a multihull man myself, but if I were I reckon I'd go for one of his designs.
Way to go bro great video
Becareful, "Once you go catamaran, you never go back to the dark side." 😉
Wharram's original designs featured hulls that were bolted to the crossbeams through rubber mounts. A builder of one of his designs suffered a failure in the Pacific (I believe) and had to lash the hull to the beam at sea. He found that this was more secure than the original bolt arrangement and communicated this to Wharram. Wharram made the change in his Pahi designs, then the Tiki designs, and many of the traditional design boats were retrofitted. Now, many builders are using nylon ratchet straps for faster assembly off a trailer, and this is incorporated in the Mana design.
I enjoyed this. But as an Englishman I suggest you take a look at a map. If you are in England it’s very hard to be more than 30 miles from the sea.
The stars, ok, but also the wave-form, the wave-deviation by islands, island systems and currents, the temperature, look and smell of the water. When I once was sailing with a Polynesian friend who happened to be a navigator, in a time before GPS, he scolded me for being too fixated in calculating my sextant findings below deck instead of just sitting on the bow, watching the water and "feeling in my balls" (his words, not mine) where I gotta be heading. For me polynesian navigation still is one of the most amazing ways to get where You want to get out there.
Nauti-Craft has a quadramaran prototype that snakes smoothly over the waves. The main hull is elevated above the water, with a suspension system connecting it to four amas. Very flexible.
Another great episode Tim! I'm curious - what are you near-future and distant-future sailing plans? With the US border still closed to us Canucks it's a little tough to travel, but I'm hopeful you have some plans for your next big adventure.
I could really tell no difference in the editing, it was high quality as always.
Please do a video letting us know what you find in your search of Wharrams as it really is interesting.
An affordable capable Cat would be amazing and by affordable I'm not talking the $100k and up club that even used and fairly trashed or terribly out of date Cats belong to.
So, the question is...did you buy those plans and are you building a Wharram?
Airplane wings are engineered to flex…probably more than you would like to know about. I, too am getting the urge to find/build a Wharram.
The colors in your office area look more saturated or more vivid than before...which is a good thing in response to your Mac vs Windows comment. Of course it could be from lighting, cam settings or many things but, if nothing else changed, I say keep the Windows setup.
I think you want the same crew as James as well as a Wharram.
Built a Raka (36 ft) in 1975. Launched in Sanford Florida, friends helped me motor down the St. Johns (British Seagull) and then sailed down to the Marquesas and later back to Titusville where I sold her to finance grad school. Great boat!
If I was to sail, I,d build a 38 to 48' Tiki!! Perfect for the islands! The only thing I would do is build it cold molded!!! Instead of wrestling thick marine ply sheets into place use 1 foot 1/4" by 1 foot strips on a 45 degree angle and then repeat over that on the opposite 45 ,degree. Then glass it. No torturing ply sheet into place and using butt joints. It would be light and super strong!!
Cold molding or strip planking, is a really bad idea with these designs. The hull shape doesn't benefit from either process and doesn't require the plywood to be tortured. You'll end up with a boat that's heavier than it needs to be. Andy Smith is the authorized Wharram builder in the Philippines and he build three different versions of the Wharram Hitia 17 catamaran, foam with fiberglass, stripped plank, and plywood. The strip planked was the heaviest, the plywood cat was the lightest.
Orange you glad no bananas have shown up on set? This was a good one Tim.
they navigated by the sea streams as well
Great video my friend
The Windows software is fine. That was interesting to say the least!
Tried to view one when in FL 4 years ago but sold before I had a chance to see it.
I think the Polynesians navigated by the stars and a good bit of luck. If they ended up somewhere, that would do. I did a bit of the same back in the sixties before GPS and using a sextant "badly" At least in Northern Europe there was often a ferry that you could track, they were always going somewhere that would do.
In the UK 70 miles is the furthest you can get from the sea.
I was struck by that as well... I believe Wharram's first catamaran was built in Manchester and launched out of Falmouth and those two cities are over 200 miles apart - perhaps that's where the 200 mile bit came from.
Fascinating. I was looking at Nauti-Craft. Wouldn't it be interesting to build a Wharram, but add a suspension system. Smooth sailin'...until the salt water destroys the suspension. There might be a solution to that, though I can't think of it at the moment.
RUDY CHOY CATAMARAN'S
AND ARTHUR PIVER'S TRIMARAN'S were the people and boats that started the modern multihull