Club announcements

June 6 - WA360 Send Off Party in Port Townsend

posted May 25, 2021, 10:36 AM by Mark Olsoe

Hello all NWMA members and friends:

You are invited to walk the Point Hudson Marina docks Sunday afternoon June 6 followed by a dinner and party at 6pm in the Port Hudson Marina Room. This will be the NWMA June meeting.

We will send off several of our club members who are competing in the inaugural WA360 race.  They will be on the docks Sunday afternoon in preparation for the race start, Monday morning at 6am.  Sunday afternoon should also be an interesting time to walk the docks and check out the various contestants.  Then, that evening at 6, we have rented the Marina Room (in the big white building next to the Port Hudson Marina docks).  The room has lots of windows which will be open. There will NOT be a virtual component (Zoom) to this meeting.

Our club will provide beer, pizza, and salad. Please feel free to bring a complementary side dish/dessert if you want!

Please RSVP (with headcount) to Paul Serafin at  

Also, team captains feel free to invite your crew. Anyone who wants to help set up the room can arrive at 5:30.

Hope to see you there!

Tue May 4 - John Marples presents FOUR INTERESTING BOAT PROJECTS

posted Apr 23, 2021, 5:29 PM by PacificNorthWest MultihullAssoc   [ updated Apr 23, 2021, 5:45 PM ]

Our Zoom meeting begins first with the presentation by John Marples since he is presenting from the Eastern Time zone in Maine.

at 6:30pm(PDT)  Legendary multihull designer John Marples' presentation.  It will include the designer's own 21' daysailing trimaran, the 27' trimaran Woodenboat Design Challenge winner, a Flettner Rotor powered Searunner 34 for the Discovery Channel, and a 110' expedition power catamaran. More at

7:30  final questions for John Marples, then NWMA Meeting and Announcements  Northwest Multihull Association (, then social time.

Zoom instructions are at the very bottom of this announcement --

Looking forward to seeing you all there! 


John Marples and Jim Brown have collaborated for over 40 years developing a world-class line of multihulls, including Searunner trimarans, and the Seaclipper economy trimarans, and the Constant Camber series of multihulls.  John Marples is a design virtuoso and mechanical engineer who graduated from California State Polytechnic University, has drafted more than forty sail and power vessels, pleasure and commercial, ranging from 7 to 64 feet.

His sailing experience includes five Pacific Ocean crossings and one Atlantic crossing as well as racing, cruising and deliveries for more than 30,000 blue water miles. Aboard BACCHANAL, his Searunner 37 trimaran, he set a corrected time record of just over 8 days in the 1972 Transpac Race from Los Angeles to Honolulu, Hawaii.

His boats won the OSTAR Small Boat Class in 2005, and also bested the fleet in the Virginia to Bermuda Trawler Trek in that same year. His 27’ DC-3 Swing-wing trimaran design won WoodenBoat magazine’s 2011 Design Challenge. Mike O'Brien reviewed the Seaclipper 20 design in WoodenBoat issue 217, November/December 2010. In WoodenBoat 227, July/August 2012, Jim Brown shared the joy of sailing the Seaclipper 10.

John is recognized by the sailing community as the author of numerous magazine articles and he’s taught with Jim Brown several times at WoodenBoat School in Brooklin, Maine. He’s built five vessels longer than 20’, including two U.S. Coast Guard certified passenger power catamarans. In addition to building boats, John has built three experimental aircraft and spent over 700 hours flying on both coasts and across the country.

Designer's boat.


The WoodenBoat Design Challenge III winner (model).  Several now under construction.


A Flettner Rotor powered Searunner 34


110' Expedition Power Catamaran (rendering).  Boat is still under construction


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Tue, April 6 -- MY SAIL & Joel and Patty's Completion of CC35 Trimaran Manxi

posted Mar 30, 2021, 8:17 PM by Mark Olsoe   [ updated Apr 13, 2021, 2:38 PM ]

Our Zoom meeting will be:

6:30 pm (Pacific Time) Virtual Potluck 

7:00 NWMA Meeting and Announcements

7:20 Peter Nelson of Seattle's Multihull Youth Sailing Foundation, MY SAIL talks about upcoming events include several months of Thursday evening free sailing on Hobie   Cats at Shilshole Marina, multihull sailing summer camps with CYC, racing and more! Peter is also connected to the Hobie Cat fleet.

7:30 presenters: Joel and Patty Smith's three year journey finishing former NW Multihull member David Vinson's Marples CC35 trimaran project. They’re now sailing “Manxi”, completing sea trials and preparing for voyages!  

Zoom info is below the following pictures, looking forward to seeing you all!

Beginning: Main hull part of David Vinson's trimaran project.


Ending: Joel and Patty have continued David Vinson's project into a well-built trimaran!

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Meeting ID: 879 8122 6540

Passcode: 353535


Or Dial  +1 253 215 8782 US (Tacoma)

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Monday March 8 - WA360, TinyWattsSolar -- Minutes Attached

posted Feb 26, 2021, 11:48 AM by Mark Olsoe   [ updated Apr 13, 2021, 2:41 PM ]

Note unusual date because of presenter's schedules. Daniel Evans will talk about WA360 the R2AK replacement, then Tiny Watts Solar will present.

 Plan on joining us from near and far.

6:30 pm PST   - Virtual Potluck

7:00 pm – 7:15pm; Daniel Evans: NW Maritime Center; Race Boss for the Race to Alaska, Seventy48 and the new WA360. His brief introduction will be to discuss the WA360. 

 7:15 to 7:30: NWMA Official’s announcements

7:30 to  8:15 ; YouTube sensations and modernized mobile power gurus, Savana and Wes Watts, founders of Tiny Watts Solar based in Oregon State will jump online to share new developments and equipment for collecting and storing power mobility. They will be joining us aboard a Catamaran in the Hawaii that they have personally equipped.  

--------------------------------------------------------------------------------- MINUTES------------------------------------------------------------------------------------

We had our March meeting on Monday the 8th due to scheduling with our presenters.  Diverting from our normal first Tuesday gatherings doesn’t seem to be much of a problem with Zoom meetings.


As always the first half hour was catching up with everyone.  Joel and Patty launched their Marples 35 trimaran last month after a year plus assembling the three hulls and countless boat parts at the Napa Valley boat yard.  They are now in Marina Bay Yacht Harbor in Richmond, CA.  So far they’ve made several outings to learn the boat, some overnight.  The family of the original builder (David Vinson) got in touch with them and are happy that the boat is on its way to new adventures.  They’ll be leaving the bay area in a few months for SoCal, Mexico and beyond, covid restriction dependent.  I think they said that they will have an AIS so we can keep up with them via a commercial app.  “They are on Instagram at sv.manxi and Facebook at manxisv but here is a link to an article and a few photos about them.


Some other bits I recall from the conversations:  Andrew E. is doing work on floor boards & nets on his Seawings 24 cat for the WA360 race.  Ginnie Jo is being furtive about an F27 trimaran she hopes to buy and will spill the beans when that happens. In addition she’s also been working on her “muffin top” camper van in hopes of further adventures with her young family. Jessica and Shaun have been sprucing up their F31 for the season.  Martyn and Linda are exploring the wonders of AC wiring in a European catamaran.  They bought a truck camper and have been switching between land and water adventures.  Commodore Scott just got back from racing on Tula’s borrowed Corsair 880 trimaran in the nationals in Florida.  He raved about the sailing and had a great time.  Joe and Sue are nearing the end of some quality yard time for their catamaran.  He’d hoped to have left the land of fiberglass and dust sometime ago but, alas…..  I’m sure I missed other conversation bits but you get the idea.  Join us next time. 


 At 7:00 Commodore Scott brought us to order with a brief introduction to Daniel Evans of the Northwest Maritime Center in Port Townsend.  He is the Race Boss of the R2AK and Seventy48 engineless races.  Because the R2AK can not be run due to Covid, and other big races were cancelled he decided to “take control of the future”.  He and cohorts came up with the WA360.  It’s a race circumnavigating Puget Sound without using engines, though you can keep them aboard.  He riffed on a means of assuring compliance such as a special rainbow zip tie around some important engine part or and old fashion wax seal but he also conjuring up the idea of revered 4 time sailing gold medalist Paul Elvstrom’s famous quote:  “You haven't won the race, if in winning the race you have lost the respect of your competitors.”   If you have a simple compliance idea email him.  Another rule is that you may not have any previously planned outside support, though you can use any shoreside facilities available to anyone else, such as chandleries, stores, hotels, etc…..   

The race starts in Pt Townsend and goes counter clockwise to Olympia then thru the Saratoga Passage around Pt Roberts and back to Pt Townsend.  There are options and several marks to round in the loop.  You can portage if you want.  All competitors will have race trackers so we can follow the action and maybe get a look at some of the choke points.  There’s 3 divisions; Go Fast, Go Hard (cruisers) and Human Powered.  A World Boxing Champion size belt buckle is rumored to be first prize.  There will be no parties, ruckus or other non allowed gatherings, though people can just happen to be in Pt Townsend for the start early on Monday, June 7.  The Seventy48 human powered race from Tacoma to Pt Townsend will be finishing during Saturday and Sunday before the start of the 360 so lots of cool boats will be in town.  I’m looking forward to being there.  After a few minutes of enthusiastic Q&A Daniel had to get his kids to bed so we bid him adieu at 715.  Here is the website:


 Commodore Scott then had a few minutes of club business asking folks to join and reviewing the advantages of being a member, Fisheries Supply discount, racing, cruising events, tool library and expert advice of many longtime multihullers.  He is trying to have the Corsair National Championships in our area next year.  Its very preliminary and no details have been worked out.  He is also looking to have a small Corsair donated to the club to garner interest in multihulls.  It can be kept at his business’s dry moorage spot at Shilshole Marina.  He mentioned that the dry storage is going to be expanded.  Brief mention was made of keeping our Pt Townsend YC reservation for the June meeting the night before the start of the WA360.  With covid vaccinations going strong there is hope that the state will allow gatherings by that time.  This was not resolved yet.  Scott mentioned that Peter Nelson of Multihull Youth Sailing won’t be presenting this evening but will join us next month.   Treasurer Mark reported that the club bank balance is $7097 and that 54 burgees were purchased for $1110 to replenished the club inventory.  A couple new members mentioned they hadn’t received one.  Another couple mentioned that they’d flown the flag so much that they were disintegrating.  The club acknowledged that we needed to get burgees out to these folks.  


 Our second speakers, the Tiny Watts couple Savana and Wesley Watts were introduced and given the floor.  Their Oregon business is primarily supplying drop in solar power solutions for camper vans.  They lived in one for 4 years and developed their own system of solar panels, inverters, lithium batteries & controllers.  Now they are outfitting a family 1992 Lagoon 42 catamaran in Hawaii with the same systems.  They hope to sail off to the south seas with their extended family in the near future.  Wesley and Savana spoke about their nifty drop in systems and how it can be used on vessels and that they also do custom systems.  Many questions and tangents followed and it was a very interesting hour or so of info packed discussion.  Savana grew up sailing around the world for 13 years with her family.  Her dad wants to go again and will be with them for the next adventure.  More info on their website;  Their boat name is Swell.  They are advocates of large rigid residential/commercial solar panels though they admit that flexible ones have attractive features.  They said Solbian are the best flexible/walkable panels.  The cheaper ones have only 2 or 3 conductors and when one breaks they will overheat.  Bill Q said his caught fire once.  The better flexible ones have a matrix of many conductors that you can actually see and if one of those breaks its no big deal.  The rigid ones are cheaper, more efficient and longer lasting.  Except for engines and a propane oven their catamaran is all electric; induction stove top, toaster oven, refer, instapot, adequate 1400 watt water heater, etc…  They have 1080 watts of panels, a 3000 watt inverter and 600 amp hours of lithium iron phosphate batteries.  This provides plenty of power for unlimited time.  Joel and Patty (mentioned earlier) said they put together the same set up for their boat.  Here are some snippets of info I caught.  LiFePo batteries are safest with little chance of overheating.  They do have circuit breakers for each of their 6 batteries.  The system is 1/4 the weight of a lead acid battery system and longer lasting at 8 - 13 years depending on how far and often you draw them down.  Though they can go to nearly to zero they advise topping up at 80% discharge vs LA batteries only can supply 50% of their capacity without damage.  They advise having a low DC voltage cut off on house batteries as they’re hard to charge if they go too low.  Inverters are 80- 95% efficient but even at rest they draw ~30-50 watts daily so should be turned off when not in use.  They rely on a night light to remind them to turn off their system.  I recommended using a bathroom timer switch as I do on my attic heater.  If I need heat I turn the timer to the time I need and it goes off afterwards,  They liked that idea.  They also mentioned that you don’t need an inverter if all you have is a 12 volt system so money, weight and complexity can be saved there.  They do have a small separate lead acid battery for engine starts as that eliminates the complicated issues with the engine alternator vs Lithium battery charging needs.  The engine alternator does charge the lithium house bank though.  They are thinking down the road about a next boat after their south seas trip and they like the Seawind 1160 for potential electric motors.  Jury is still out on that.  After the Q&A was exhausted we bid adieu to Savana and Wesley thankful for their generous time and information.  They said contact them any time with questions.


About half of us lingered for another 45 minutes visiting.   I hope you can join us next month

Eric Lindahl

Feb 2 -- WA360 and Billy & Sierra's Endless Summer - Minutes Attached

posted Jan 27, 2021, 10:21 AM by Mark Olsoe   [ updated Feb 16, 2021, 9:29 AM ]

Minutes of Meeting --

As always our meeting started with a virtual potluck at 6:30.  We had a few folks from other parts of the country, Canada, and several I did not recognize.  Having put notices on various internet forums, maybe some were from overseas!  Our presenters Billy and Sierra, the Corsair 880 sailing YouTubers, were also online early to visit with us.  We had  a lot of back and forth discussion and I think they appreciated getting advice from our experienced cruisers.  Ira Heller the Corsair dealer from back East was with us and provided some expertise when the conversation veered toward that popular brand.  Mark D. joined us from Mexico and we heard that Joel and Patty are expecting to launch their 35’ trimaran in California next week.  That must be very exciting.


We had hoped  to have the WA360 race around Puget Sound Race Boss give us a briefing on the race but he couldn't make it at the last minute.  We’ll see if he can do that for us next month. The WA360 is replacing the covid canceled Race to Alaska. It will not be restricted by the covid closed Canadian border that caused the R2AK to be cancelled.  The WA360 is an engineless run around Puget Sound starting and ending in Port Townsend with many way points between Point Roberts and Olympia. Race Start is June 7, 2021 and has more info. We discussed the race, boats and human propulsion a bit and then had a brief club meeting.


Commodore Scott made a plug to support the club and reviewed our benefits; Fisheries Supply and Ballard Sails discounts, tool library, PHRF race potential, and normally a cruise and rendezvous schedule.  Treasurer Mark reported a bank balance of $8259 which is high because we are not renting the Yacht Club for our normal monthly meetings.   We had some discussion about having the June meeting in Port Townsend during the WA360 start.  We'll discuss it more at the next meeting after some input from the race organizers.


We had a brief introduction of our speakers, Billy and Sierra of “Tula's Endless Summer” sailing YouTube channel. They are a young couple who bought a monohull to live on in Florida, then bought a trawler, then bought a Crowther Shockwave 42’ catamaran where they have lived the last 3 years.  The cat is for sale as they have ordered a new 39’ Seawind 1160 Light catamaran.  They were loaned a Corsair 880 trimaran for the next few months until the Seawind arrives.  They still are undecided whether they want the outboard or inboard option.  We had discussion about that and the differences of the 1160 vs the 1190.  They felt the 1160 was big enough for them and it didn’t seem that much different than the 1190.    They’ll have 800 watts of solar panels and lithium batteries.  They are now in Florida where they seem to be living in a pickup truck camper when not sailing on the Corsair.  They plan to take the Corsair 880 on the Florida loop through Lake Okeechobee to the West Coast, then back to the Keys, then Dry Tortugas, and back up the East Coast.  They hope to trailer the Corsair to Texas to sail then to California in May.  They may even come up this way to cruise the San Juan Islands.  


They’re quite popular and have 141,000 subscribers at and more videos at    We viewed several short videos of them sailing, surfing, drone shots, and cool Florida and Bahamas anchorages.  It was fun to see them sailing a Corsair 880 trimaran while pulling friends on foiling boards, check out   They like the Phantom3 drone vs the Mavic as it has landing legs which are easier to catch. They don’t launch and land from the deck because a heaving surface can come up and whack the drone causing a crash.   Some asked how long they could live on the Corsair 880 (it's only 28’).  They thought about 2 weeks for them.  Their truck camper is easier to live in because of the oven but they prefer the boat as it's easier to get away from people and civilization.  They appreciate the  Corsair's shallow draft for anchorages for the same reason.  Another question was about the head under the vee berth.  They said it's no big deal to slide it out for use.  They only use that berth for storage.   They did mention they're not big sized so the aft cabin works fine for them.  Occasionally, on still hot nights, they go head to toe for a bit more shoulder room.  Billy and Sierra hung in with us way past their midnight in Florida but eventually bid adieu after much thanks from us.  Most others stayed on and we had conversations about boats, dinghies, bottom paint and I forget what else.  Around 10 we adjourned for the night.  


We recorded Billy and Sierra’s presentation and it’s available to see at NWMA’s YouTube channel at


Next month, March 2nd, 6:30pm Seattle time, we will again gather round our screens to zoom talk multihulls and boating. Whether you are a member or not we hope to see you then.


Our Zoom meeting is Tuesday, February 2, 2021. Plan on joining us from near and far!  Information about joining meeting is at end below. 

Speakers will be Race Boss Daniel Evans, and Caribbean sailors Billy and Sierra.

6:30 pm PST  Virtual Potluck

7:00 pm  Daniel Evans, NW Maritime Center. Race Boss for the Race to Alaska, Seventy48 and the new WA360. He will discuss the WA360.

7:15 pm  NWMA Meeting and announcements

7:30 to 8:30  YouTube sensations, Billy and Sierra of ‘Tulas Endless Summer’ will join the Northwest Multihull Association to talk about their current sailing on the brand new Corsair 880 trimaran (last month NWMA hosted François Perus, designer of the 880). They will also talk about their upcoming move to a new catamaran. 

Look forward to see you all,  Scott Wallingford

Here is the Log-in information 

NWMA Zoom Meeting

Time: Feb 2, 2021 06:30 PM Pacific Time (US and Canada)

Join Zoom Meeting

Meeting ID: 850 6565 3141

Passcode: 140140

Call me directly at 206-898-5944 if you have any questions or trouble accessing our meeting.

Saturday January 9 at 9am - Designer of the Corsair 880 w/ Minutes Appended

posted Dec 22, 2020, 5:44 PM by Mark Olsoe   [ updated Mar 9, 2021, 6:07 PM ]

We had a special guest this month in François Perus the designer of the Corsair 880 Trimaran.  It is the update and replacement for the ~13 year old Corsair 28 which was the update for the Hall of Fame Corsair/Farrier F27 designed by the late Ian Farrier.  Last meeting during our gab session F31 owner Vince wondered how cool it would be to talk to the new designer of the 880 and learn about the evolution of this popular multihull.  We said “make it happen” and he did.  Thanks so much Vince.


Since François is in France the meeting was Saturday Jan 9, at 9 am which is 6 pm in Paris.


Commodore Scott began the business part of the meeting where we elected officers for next year.  Though we had advertised to members the positions last month Scott called for any last minute volunteers.  With no reply we basically approved the slate by lack of dissension, (is that acclamation?).  Voting via zoom would have been cumbersome and time consuming.  All the officers agreed to continue in their positions though a few would appreciate someone stepping up to take their position.  The one notable exception was Paul Serafin will be filling Andrew Rice’s shoes as Membership guru.  We thanked Paul for taking on that important position.  We also thanked Andrew who has done a great job for several years.  The 2021 officers are noted at the end of this report.


Vice Commodore Diane introduced new member Dennis F who lives in Alaska.  Paul Serafin will mail a burgee to him. 


Scott spoke about the cancelled R2AK due to Covid and that we will probably not have the June meeting at the Port Townsend Yacht Club on the eve of that event.  I think we will reserve it again for 2022 though.  He spoke of the new Washington 360 race put on by the same R2AK folks at NW Maritime Center in Port Townsend.  The WA360 will not cross the covid closed Canadian border and will comply with our governor’s covid regulations.  Its course is 360 miles encircling Puget Sound from Pt Roberts to Olympia.  A cool course with a few options for competitors; Swinomish Slough vs Deception Pass, E or W of Bainbridge and Vashon Islands, etc…   There are 3 classes, Fast, Cruisers and Non sailing boats.  Unlike R2AK you can keep your motor in the boat but are DSQ if you use it.  I like Sailing Olympian Paul Elvstrom’s famous quote; “You haven't won the race, if in winning the race you have lost the respect of your competitors”.  I think it will be as popular as the R2AK for competitors and tracker junkies alike.  Spectators too as there ought to be some beaches where you can go for a walk at the right time (check the tracker) with the hope of seeing a bit of the action.  See


A few further points of business were: 


Treasurer Mark reported the bank balance at $8249.  This is pretty high as we haven’t needed to rent the yacht club in the last year.  No discussion was had regarding this balance.  We’ll look into it after covid has subsided and we get back to normal club meetings and sailing events. 


No Safety at Sea course this year.  Some of the large races are cancelled for this coming summer due to covid.  But a lot of the races are still happening.  See racing calendar.


Diane noted the January Seattle virtual boat show has many seminars that you can join for $5 each or for $30 you can join them all or view their recordings for up to 30 days after.


  We recorded videos of some of this year’s presentations.  Some recordings are on our club’s YouTube channel at     Feel free to take a look and then we hope you will help our club by clicking to subscribe.   Andrew E noted that if we get enough subscribers to our YouTube channel we can enter the rarified universe of a “branded channel”.  I had to google that.  A branded channel can:

-  Convey to viewers when you post new videos to your channel.

-  Communicate to viewers what they can expect on your channel.

-  Allow you to seamlessly post your channel on various social media outlets.  (I wonder if we can link to our website this way)

-  Improve upload time.

-  Permit a dedicated banner and icon to make your profile stand out

-  Have a description to add useful information about your business and contact details.


Some other club presentations are recorded at


I’ll editorialize here in that It seems to me that managing multiple social platforms is not trivial and will take a dedicated effort.  But even if untended, social platforms help to send folks to our website who are interested in the club.  I’m for having them.


We heard from Stuart J. who bought Sigi’s beautiful pro built F33 a couple years ago.  He lives in Calgary but the boat is in Vancouver and he sails there when he can.  We discussed ways to make sailing easier after he noted the boat came with a Milwaukee Hole Hawg cordless drill and winch bit to raise the main halyard.  We discussed precautions to take as those can break an arm faster than you can let go of it!


Finally it was time to hear our speaker François Perus, One of the founders of YDC, the naval architecture office responsible for the new Corsair 880.  Vince gave him a nice introduction.  There is a video link on our website of the presentation.  I have also put it here; .   To find it on out website you scroll down thru the meeting announcement.  That is where this written report is archived too.  Here’s a link about François:  and his website  And here is a link to 2 boat designs of his;  


 First things first:  He likes the Polynesian heritage of these boats and the use of their terms aka, ama and vakas.  He even has designed and is having built a cool, simple light plywood 4 meter trimaran using lashings for his personal use.  It is called Kanka.   In France they use beams, floats and hulls so that’s what he uses with an occasional slip back to the old words.  He grew up sailing monohulls but after Engineering and Naval Architecture school he worked with multihull designer Tony Grainger in Australia to learn the middle ground between condo cats and 60’+ ocean racers.  He came back to France and founded his company with a partner.  He’s designed some cool looking multihulls, big and small including 42’ Blue Saga for a couple in Seattle. has technical info about this interesting sailing cat with hybrid electric propulsion.  Then François designed the Corsair Pulse 600, redesigned the 760 and now the 880.  He’s working on a new project at this time which I suppose will be up on his website when the time comes.


I can’t take notes fast enough to get all the cool tangents that evolve from these type of presentations but here’s some highlights.  You can probably parse a lot more from the video recording but that will take some effort and time.  


François started out by designing and building, with a “carpenter”, his own cat in Turkey called Pandora 850 which he still has.  Then came a couple cool looking fast cruising cats.   Corsair tapped him to do the Pulse 660 in 2015.  Then to redesign the 760 in 2017.  I guess things were going well so in 2018 they had him design the 880 to update the venerable Farrier/Corsair 27/28s.  He had cool overlays of plan and section views comparing the hull shape of the old 28 to the new 880.  The hull sides (freeboard) are raised (I think he said 6 or 7”) so the boat now has standing room.  He didn’t like the old cabin so it has a more delineated house without the sloping foredeck. He wanted the boat to look sexy.  (whodda thought a Frenchman would want that?).  I think it looks good.  Vince, who’s seen it in the flesh, says it looks as big as an F31 but isn’t, but it seems as big inside and in the cockpit.  François must be a clever designer, he certainly is a pleasant young man who enjoyed spending some time with us discussing his boats and design philosophy.


There was a comment from a member that the 880 is 1000 lbs heavier than the 28 but that was not confirmed.  It is heavier though, because of higher freeboard, more accommodation, bigger floats, etc, but is faster.  The aft seating is higher.  The floats have more than 100% buoyancy of the entire vessel.  This reduces pitchpole tendency and with the now popular reverse float bows it slices through waves better but not wetter, (see below).  There is a video of the boat sailing just after completion where it was pushed fairly hard in the moderate wind.  (At this point there was some discussion about the Corsair  Pulse 600 that his company also designed in that the 600 has 300% ama buoyancy and has been pushed very hard in the tough conditions around Hawaii where it hit 26 knots in big swells).  François has not sailed the 880 due to covid travel restrictions but others have hit 17 knots in 15 knots of wind with genaker.  It felt comfortable and in control at 20 knots boat speed.   He said when a gust hits it tends to just “glide” rather that heel over.  I assume that is the French way to say it just accelerates (planes faster) with a gust.  The mast is further back than the 28.   I don’t remember why but I think it was to make more room for accommodations but also one parameter was the ability to remove the dagger board without removing the mast and step.  The dagger does have a lot more angle than the 28.  The mast now rests on the same bulkhead as the beams.  The aft beam is now further back, (discussion on racking and float stays was here).  Corsair’s experience is those stays are needed on the older boats but on the 880 the stiffness was enough to get rid of them.  Both beams are higher and with the greater free board and the new aft beam placement spray is reduced in the cockpit despite the float axe bows.  It’s a dryer boat.   The hull is very similar to the 970 and is flatter and wider at the stern than the 28.  At rest the stern is immersed but underway this gives it a longer “virtual” water line so is faster.  He talked quite a bit about the conflicting design parameters; it has to fold for trailering, lightness for Euro/Australian roads, bigger inside, dagger easily removable.  


Members asked lots of questions which he encouraged and clearly enjoyed as they led us down various rabbit holes.  (He spoke for over 2 hours with us for goodness sake).  Some questions were:  Why it’s not designed to fold without adjusting the shrouds (can’t do that with larger volume hull and 2.5 beam limit), Is the axe bow sacrificial? (no but the first bulk head is 1.5 meter aft and that should help matters).  How about float rudders?  (can’t do it without a lot of complication that’s hard with a folding boat, plus the boat is designed for the hull to go no higher than just kissing the water and the rudder is very deep, so no need).  We also had some discussion about rudder T foils.  Due to old-guy-operator-error that Zoomed over my head, except for a comment that the new one design racing catamaran TF-35 has rudders that turn opposite directions.  That must be like those 6 wheeled military HumVees that can crab sideways.  The meeting video may reveal more than my notes here.   


Someone asked what he thought of canting masts.  I only caught that he hadn’t studied them as the really racy high tech boats have foils so they sail pretty upright and he didn’t see much need for canting.  Also a righting moment discussion was had here, which I missed while scribbling  notes.  


We asked about hitting logs & debris.  He said in some boats he’s molded a stainless steel rod at the back of the dagger board trunk which is designed to cut the dagger (so as not to breach the trunk or hull integrity) if it is slammed by an object.  I’m not sure this is in the 880.  I’ve heard that the Farrier daggers would possibly self retract if struck due to their aft slope.  I have a hard time conceptualizing this but it may be more likely with the increased slope of the 880’s daggerboard.  François didn’t mention, nor was there any discussion of this possibility.


We had some interesting discussion on design technique.  He uses some FEA (finite element analysis).  It’s expensive to use for everything on the boat though.  He also uses CFD (computational fluid dynamics) studies.  The description of the extensive destructive testing on the 880 that the factory did was pretty interesting.  François sometimes does use outside engineers to determine hull stresses, lamination schedules and such.  He was obviously impressed by the 30 year knowledge base old timers at Corsair had.  When his analysis came up with a 600 gram hull lamination schedule Corsair said we’ve been doing 500 for 30 years with no problem.  He got the ship building regulators to accept 500 due to demonstrated sufficiency of Corsair’s 30 years of manufacturing.  He admiringly acknowledged that sometimes when the old dog says ‘I think you’re gonna need a few more patches of carbon right there’, they are probably right.  It was nice to see a smart young designer that also listens to the voice of experience. 


 It was asked what he does when he gets a new commission.  Other than budget considerations he obviously asks the client what he wants the boat to do, what are the objectives.  What is the history of the clients concept or previous boats.  Then he considers looks, esthetics, as that is important to him as well as the client.  Then he dives into the engineering and renderings.


All in all this was a really fun and informative evening to get inside the head of young talented designer.  François was engaging til the end.  We thanked him profusely and wished him well as we all bid au revoir. 


In these zoom meetings you (I) just can’t catch everything.  I think I heard that next month we will have a presentation by a Caribbean-sailing couple.  Their 41’ Crowther Spindrift catamaran is for sale.  They’re sailing a Corsair 880 that was loaned to them.  Nice work if you can get it.  I hope you can join us at our next meeting on Tuesday, February 2 at 630 Seattle time.  Look for announcements a week prior from the NWMA google group, Multihull Anarchy, Cruisers Forum and the FCT (Farrier Corsair Trimaran) group on IO.  


Below are the club officers for 2021


Commodore - Scott Wallingford (continuing)

Vice Commodore - Diane Johnson (continuing)

Rear Commodore - Jeff Oaklief (continuing)

Secretary - Eric Lindahl (continuing)

Treasurer - Mark Olsoe (continuing)

Web Curator Newsletter (aka electronic media team leader) - Mark Olsoe (continuing)

Membership - Paul Serafin (new guy)

PHRF Director - Jim Miller (continuing)

PHRF Handicapper - Vince DePillis (continuing)

Race Captain - Jonathan Kalley (continuing)

Historian  (open for volunteer)

Publicity Chair (open for volunteer)

Tool Librarian - Jonathan Kalley (continuing)

Digital Team - Bill Quigley, Shaun Heublein, Jessica Aarhaus (all continuing)

Why are we meeting at 9 in the morning? Because our speaker is from France and it will be evening there.     

The Northwest Multihull Association meeting and elections will be online using the "Zoom" app, info is at end below. Plan on joining us from near and far! 

 9:00 am PST  brief club Meeting including elections, then Francois Perus, designer of the Corsair 880 trimaran will talk and be available for questions.  More at  and  François Perus: multihull designer profile - Yachting World


Virtual Brunch after presentation  

Photo from

Club Elections

Here are the officers we had this past year.  All are willing to step up again but Vince and Diane would like a break if anyone is interested in helping out.  I think any of us would step aside if someone else would like to throw their hat in the ring for any position.  None of the jobs involve much time and we are all willing to get you up to speed and help out if needed.  We would love to have more members get involved.  Please let us know if you'd like to help our club as one of these officers.

Commodore - Scott Wallingford continuing or _______you?___

Vice Commodore - Diane Johnson continuing or _______you?___

Rear Commodore - Jeff Oaklief continuing or _______you?___

Secretary - Eric Lindahl continuing or _______you?___

Treasurer - Mark Olsoe continuing or _______you?___

Web Curator (aka electronic media team leader) - Mark Olsoe continuing or _______you?___

Digital Team - Bill Quigley, Shaun Heublein, Jessica Aarhaus continuing or _______you?___

Membership - Paul Serafin (new) or _______you?___

PHRF Director - Jim Miller continuing or _______you?___

PHRF Handicapper - Vince DePillis continuing or _______you?___

Race Captain - Jonathan Kalley continuing or _______you?___

Tool Librarian - Jonathan Kalley continuing or _______you?___

Historian  _______you?___

Publicity Chair  _______you?___

Hope to see you there!

Northwest Multihull Association  



Holiday Party -- December 1

posted Nov 22, 2020, 5:26 PM by Mark Olsoe

You are cordially invited to attend Northwest Multihull Association’s virtual holiday potluck dinner and brief meeting.    

Tuesday December 1 at 6:30.


Do join us to kick off the holiday season.  I hope to see you all there. 

Plan on joining us from near and far!  We will be online using the "Zoom" app. 

Happy Holidays from your friends at Northwest Multihull Association! 


Join Zoom Meeting


Meeting ID: 839 9286 9955

Passcode: 922000  Diane Johnson will host the Zoom event and if you have problems setting things up beforehand you can contact her.  206-295-3605 cell 


Dial by your location

       +1 253 215 8782 US (Tacoma)

        +1 669 900 6833 US (San Jose)

        +1 346 248 7799 US (Houston)

        +1 929 205 6099 US (New York)

        +1 301 715 8592 US (Washington D.C)

        +1 312 626 6799 US (Chicago)

Find your local number:


More about Zoom…..


Zoom works on just about any device but it will work best on a laptop or desktop because the screen size allows you to see more participants. You don't need a camera but it's nice to have so other members can see you. You will need a microphone, but almost every laptop has a microphone built-in. Headsets also work well.


From the download site install the ‘Zoom Client for Meetings’ for your computer. There are also ‘Zoom Mobile Apps’.


One Minute Video instructions:

Zoom also has a "test meeting" running continuously so you can see if it's working:


I’ve participated in Zoom meetings and have discovered that it's the ‘mute’ feature that makes it work - 40 people can’t talk at the same time and some are affected by feedback that’s not apparent to the person creating it.  It is best to mute yourself (and the host can also mute participants). If you’ve been recognized to speak don’t forget to unmute yourself!


After ensuring your system and Zoom are working correctly, click to join at 6:30.

Nov.10 - “A Trip to Cuba” presented by Rob and Teresa Sicade - including link to presentation

posted Oct 22, 2020, 2:00 PM by Mark Olsoe   [ updated Nov 17, 2020, 1:34 PM ]

This trip consisted of chartering a catamaran for a 6 day trip out 70 miles off the coast to the Canarreos Archipelago, plus numerous land based adventures. This Zoom meeting has been delayed a week to accomodate the election.

In April 2019 six friends with a shared sailing problem traveled together on a two week vacation to Cuba. They chartered a catamaran for a 6 day trip out 70 miles off the coast to the Canarreos Archipelago, and also visited Old Havana, the old colonial city of Trinidad, New Havana and the beautiful Vinales Valley for a horseback trip to a tobacco co-operativo. This turned out to be one of the most interesting vacations ever, because in Cuba everything is "Complicated".  

Rob and Teresa Sicade took their first sailing class with the University of Washington Yacht Club in 1992. Following graduation and a brief life in suburban Redmond, they bought a 1984 Baba40 sailboat and moved aboard at Shilshole Marina. Eight years later, after lots of international chartering, local racing, and many sailing classes, they set sail for a 4.5 year 32,000 mile loop around the Pacific. Now back home 10 years later, they're closing in on retirement and ready to head out offshore again soon on an encore voyage, once again aboard their beloved Baba40. Where the winds will take them next time is yet to be discovered!

Hope to see you there!

Here's the link to the presentation which you can copy and paste to your browser:  

Oct. 6th - “The Story of Presto” presented by Joe and Sue Dazey - With Link to Presentation

posted Sep 30, 2020, 1:01 PM by Mark Olsoe   [ updated Nov 16, 2020, 5:50 PM ]

Starting from our first multihull 40 years ago, how we ended up with Presto (a Chris White Voyager 48 catamaran) and where we've sailed in the last five years - Florida, Chesapeake Bay, Caribbean, Panama, Costa Rica, Mexico, Alaska and Seattle. Now that it’s Halloween month, all the horror stories will be included.

Here's the YouTube link to the presentation:

September 8 - What We Did This Summer - Minutes Attached

posted Aug 21, 2020, 1:42 PM by Mark Olsoe   [ updated Sep 11, 2020, 7:07 PM ]

The Zoom speakers will be….  You, Me, and Us! Let’s hear about your sailing experiences. Please prepare photos of your recent sailing adventures (preferably on multihulls), favorite destinations, cruising, building, boat modifications, preparing for future racing, anything boat-related.  Photos should be on our PC (or other device) that you will use to attend the Zoom meeting.  To be ready to show your pictures or video during the meeting, all you have to do is have them up on the screen of your device. Then we will take turns clicking on the “Share Screen” Zoom button to share our photos and videos.

6:30 pm PST   - Virtual Potluck

7:00                 - Club Meeting, then Presentation

Once again we will not be meeting at the Puget Sound YC.  The meeting will be online using the "Zoom" app. There has been a very positive response to prior Zoom meetings –– plan on joining us from near and far!  Just for this month, we’re meeting on 2nd Tuesday, on the day after Labor Day holiday.

Hope you all had a good summer.  Welcome back to NWMA!  Hope to see you on-line!

----------------------------------------------------------------------------------------------------------    Minutes   ----------------------------------------------------------------------------------------------------------------------------------

The club is still doing Zoom Meetings due to Covid.  We saw a few new faces.  Nice to see continuing interest in our club.


I was a bit late to the potluck part of the meeting so I might have missed some things.  Here’s what I saw:  


Not much business was conducted.  Treasurer Mark reported our bank balance of $7036.  And that Sept is dues month and asked that folks renew via the website.  It is easy.    Vice Commodore Diane reported the club has bought a $105 pro Zoom account so we can have Zoom meetings longer than 40 minutes.  


 As is the custom, Sept is show and tell month of what sailing adventures we had this summer.  Due to Covid we all were limited to US waters so it was all San Juans and to South Sound Cruising.  Though Mike S told of his adventures buying a 40’ cat (see Instagram SYQuini) in the Canary Islands and cruising to Portugal and Spain where his boat is Covid marooned in Valencia.  Ginniejo, who is new to us and lives in Spain part time, reported that Euro/Schengen visas can now be gotten for longer than 3 months.  She also is very interested in getting an F27 if you know of a well cared for one.  She and her family live in Leavenworth and are mostly mountaineers so will be trailer sailors.


 Here are the reports I heard, many had nice pictures & videos too:  Shaun and Jess sailed their new F31 a lot, mostly in South Sound where they keep it in DesMoines.  Todd keeps his boat on a private buoy a quarter mile from his West Seattle home.  Both of these folks had a bunch of up close encounters and pics of orcas in S. Sound and San Juans.  Very cool.  Jeff showed videos of reaching at 16 knots single handing around the sound.  Jim & Paula M showed slides of commuter cruising their Crowther 42 in the San Juans via their son’s small plane.  Jim also showed pics of nice woodwork he did to update the boat.   Joel and Patty who trucked their 35 Marples Trimaran down to Napa CA showed pics of their recently self rigged and raised (via $200 yard crane) mast.  They used all synthetic rigging and are really good at splicing now.  They are getting close to launching but wonder how Covid will affect their plans to cruise Mexico this fall.  Dan H. made us all envious broadcasting while sailing his trimaran in Lake Union on this warm, but very forest fire smokey evening.   Eric showed a couple pictures of his slightly marine related summer, rebuilding a rotten wall and roof on the 100 year old house boat his dad bought 50 years ago.  No sailing for him as he’s working 7 days a week to get it done.  Mark D reported on conditions in Mexico where he spends the winter Tornado and kite sailing.  He stayed a little longer there to keep out of covid’s harms way, until it got too hot in June.  He’s back in Seattle now.


 We had several other folks in attendance enjoying the stories and discussions as well.  


 At the end Vice Commodore Diane reminded us that on Saturday, Sept 12 at 7pm the virtual Pt Townsend Wooden Boat festival will show (debut?) the R2AK race movie and live Q&A with the filmmakers.  It can be viewed for a day or so afterwards to paid participants of the show.  Its $15 - 30 depending on whether you choose just the movie and/or the pictorial boat tours and all the info packed seminars of the show.  See  for more info. 


 Next month Oct 6, Joe and Sue D will speak about their cruise from the Chesapeake Bay thru the Caribbean, Panama Canal to Alaska and back home to Gig Harbor.   They have a fast 48’ Chris White Voyager catamaran.


 November 3 we will have Teresa and Rob from the Puget Sound Cruising Club give us a show on their trip to Cuba.  Its a monohull but we will give them a pass.  It should be very interesting.


 Til then smooth sailing


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