John launched his heavily modified KHSD 40 trimaran June 20thWhat is it, 46′ now?
I did carbon wing mast and boom designs for it also. Will post in the future.
#trimaran #multihulldesigns
Trimaran Amilee Launched
Category Archives: Trimarans
New 26′ Trimaran Build
This demountable 26′ trimaran is being built here in the PNW. CM cylinder molded developed plywood/epoxy.
Toss the outboard and add a rowing rack aft to make it a R2AK competitor. I will publish interior next week. BOA 22.5′ or 6.86m.
52′ Tri Hound
I was shown this 52 Mcconaghy trimaran with an interesting hound arrangement. Composite rigging guru John Fanta advises against any hidden composite rigging arrangements.
It also had an oddly large masthead plate and an oddly small and badly chewed up exit for something there in the picture foreground.
Sailing 32 Trimaran
I was just about to splash the 12 foot tri when I got a call from Lloyd Fogg, one of my builders who was at Shilshoe Marina that evening.
They just got sails that day and were going north with the tide in the morning. One of my 32 foot cruising trimarans.
Could I check everything out? Sure.
A few revisions, but it sails great. Fully instrumented. We were faster than true many times.
Great evening.
sailing little yellow trimaran
Wi-Fi down in office building last Thursday and Friday. Owner gone and his voice mailbox full.
Verizon modem no longer working, probably since last unavoidable win 10 update. Clearly the universe was telling me to go sailing. Little 12 foot tri. Rudder seems to be a 6% or so 6000 series foil; probably from a Hobie. Would be very easy to stall. I was worried about maneuvering. Nah. Did great. I will change lots of the sail handling things, but I am fussy about sail trim.
Delightful to sail. “Does everything it’s supposed to” noted Tim Ryan, also trying it today.
12′ Trimaran
OK, I bought the boat. It should be in Seattle in late August. Its been great working with Gregg the owner. He wants to see it tied up at the lunar lander.
23′ Tri, 28 years
Facebook is great for reminding me of things I would forget. I forgot this from two years ago. 23′ mini cruiser built in CM.
I just got this wonderful note from a builder, Joe. I got to sail on his boat in Lake Tahoe back the same week Sierra Cloud had her first sail.
“The little tri is 26 years old now. Yes I know it is hard to believe.
I don’t baby this boat. It is kept on a lee shore and mostly sailed in
strong winds. She doesn’t look much different than the day I launched it and shows little signs of wear in all key areas.
I guess at this point we could say the construction is sound.
I’m glad I didn’t go with a “famous designer” with all that I hear
about those boats. Thanks for the great design. She has given me many years of good times.”
More 16 Tri Pictures Down Under
I also got these great pictures from Jeff Copping, one of my builders down under. I think it is the 16 tri, but could it possibly be the 23 day tri?
Sorry I lost his name. Its been more than a month, and hospital drugs and all… Am sure he or someone will fill in my blank.
I see it has the sliding trailering option.
I think this looks pretty modern and fast for some 25 years ago. Developed ply/epoxy.
16 Tri Construction
One of my demountable tube/wire trimarans down under. Been so long since I grabbed the picture that I forget who builder is. Chime in here? Anyone?
Developed ply/epoxy. Looks great.
40 Foot Performance Shorthanded Trimaran for Owen
Use program:
Shorthanded sailing for both racing and cruising.
Demountable and able to fit into a tallboy container.
This design is the latest update to a design that I did several years ago for Phil Steggall.
It also has several features that I developed while sailing my own F40 Geko. First of these is the addition of an actual cabin from main hull flare. Any time a few people come aboard for a sail, their gear has to go somewhere, The 7 foot wide cabin also allows a canopy to hide under in bad weather. On the much narrower Geko, that space was taken up by winches.
The outboard is mounted beside the cockpit instead of back on the transom. When shorthanding having the motor right there without leaving the cockpit is important. On the Geko an 8 hp outboard would push it to 7 knots in chop and once did 11 knots on flat water.
It has a single board in the main hull. Vertical and aft of the mast a bit. In Marchaj we find that a vertical board has the most even stall characteristics and also less deflection for the span. Fully down, the board is a couple of feet below the cabin top. Downwind the boom can be lifted a couple of feet to reduce board draft. I don’t understand the trimarans that suffer the inefficiency of swept boards.
Board down, the draft is something like 10 feet.
As usual it has 200% buoyancy amas.
Presently the design has ama rudders.
Foils were not chosen as they work best with larger crews.
Construction is strip foam and unidirectional e-glass for the main hull. The amas could be the same or even a combination of developed plywood and carbon fiber.
Beams are core with carbon fiber.
Geometry is virtually square with the width almost a much as the length overall. Doesn’t that make it wider than a Rapido 60?