SeaCart 26 Factory Visit
Bådnyt Magazine envelope. © Picture by Flemming Thomsen
Journalist Flemming Thomsen visited the factory in December 2011 and had a long chat to Calle Hennix, the man behind the SeaCart Trimaran brand. The result just landed in the Danish shops. Six loaded pages with text and pictures. Text in Danish but still lot of interesting pictures from the factory to scrutinize for those not understanding Danish. Enjoy!
Hectic times at the factory. © Picture by Flemming Thomsen
The SeaCart Team
SeaCart 26 Code 0 Test
North Sails sailmaker Anders Lewander is currently in Phuket, Thailand, for The Bay Regatta. In this video the crew is out testing Code 0 in 10 knots TWS. Enjoy as they do!
Link to video on Youtube
Racing Systems as Standard!
The SeaCart 26 is a piece of racing art fitted with the best brands in the business.
The SeaCart 26 is a One Design racing boat that comes with advanced racing systems as standard. This reflects Oceanlake Marine’s philosophy where we strive to deliver the best and most effective solutions and systems on our boats – So there is no need for an extensive refit to get your boat up to racing level after delivery!
Hardware Harken, Karver, Antal, Spinlock, Tylaska, Lewmar, Custom made…
– Carbon beams, carbon rudder heads, carbon reinforcing on the three hulls
– Carbon mast in two parts, single spreader, Dyform diamonds stays (single adjustment)
– Custom built, pre-stretched, 12 tonne rated shrouds. Hull lashing through Antal rings
– Carbon boom including reef system, outhaul and all lines needed
– Harken under deck jib furler
– Most of the sailing hardware, such as blocks, cleats etc. from Harken
– Dyform furling forestay in two pieces
– Removable carbon bowsprit, sprint inside boat
– Custom built carbon staunchions, three at each float, and soft back support
– Custom built curved bow rail to prevent furled sails from going overboard
– Offset mounted New Harken two gear winch
– Custom built curved foil daggerboard cases in each float
– 1.8m long carbon curved foils (extra equipment)
– Unique lightweight folding system
– Quickly removable rudder blades
– Soft progrip on floats, mainhull bow, cockpit floor and seats
Here you can check out many detailed equipment pictures.
Sailing Systems Liros Dyneema, Karver, Custom made…
– Highest quality Dyneema halyards and sheets on all systems (whole boat more than 600m)
– Floating jib sheet points. Adjustable Antal sheet rings on each side. One line adjusts both sides
– Jib halyard system. 1:24 to cleat on jib tack
– Jib sheet big trim (1:2) and fine tune system (1:24). Fine tune lead up to windward float
– Main halyard through Spinlock at mast for easy hoist and reefing
– Main sheet big trim and fine tune system. Fine tune lead up to windward float for trimmer
– Extensive cunningham system adjustabe from windward side on each float
– Main outhaul system inside boom, led out to cleat on boom
– Gennaker furler Karver KF 1 including top swivel. Custom fast pin gennaker tack attachment
– Endless gennaker furling line. Triangularly led through two attached harken blocks
– Covers for foils, boat and mast available
The Code 0 systems (extra equipment)
The Code 0 are hoisted onto a Karver halyard lock. The deck Karver KF1 furler is attached to a 1:4 line system that goes through a side mounted Spinlock on deck, then to winch. This provides a high load purchase system (as on a VOR 70) to tension the halyard. When the tension is taken off the forestay (jib) the Code 0 luff loar is OK.
Code 0 Extras
– Karver KF1 furler including 1:2 tack sheeve
– Karver halyard lock, attachment point at mast is standard
– Code 0 sheet inhaul through hull fittings and harken cams at each side of mainhull
– Code 0 sheet outhaul attachment point at each float into cams at mainhull
– Antal Code 0 sheet clev rings
– Large Harken turning blocks at aft beam
– Dyneema highest quality racing sheets
– Endless furling line in Dyneema
Again! – Check out the many detailed equipment pictures here.
Trailer & Mast Raise! – Here you find New pictures
The SeaCart Team
SeaCart 26 Test by Torvar Mirsky and Gustav Morin
Torvar Mirsky and Gustav Morin put the SeaCart 26 to the test. Tim Shuwalow took Torvar and Gustav out for a spin on a late gusty summer day. Check out the result by clicking on the picture. Don’t miss hamnen.se if you would like to know how you can do boat tests in a fun and informative way (site in Swedish).
Torvar Mirsky: Often compared to the likes of match racing superstars such as James Spithill and Peter Gilmour, Torvar Mirsky is the new young gun to take the sailing world by storm.
Torvar on Facebook
Gustav Morin: Gustav Morin has always found his inspiration of journalism in being a part of the action– instead of standing on the side watching it. In 2007 he joined the Victory Challenge team for the America’s Cup in Valencia as a grinder. The pretty unique mix of experience in yachting and media now got him the opportunity to experience the ultimate sailing adventure – joining Ericsson 3 as the media crew member for the Volvo Ocean Race 2008-2009.
Gustav on Facebook
Swedish SeaCart 26 Cup for 2012 in the build – don’t miss out!
Sweet Chariot in Action
Picture by Jimmie Hoover 2011
Sweet Chariot passing a gate during the last day of Kings Cup 2011. Near perfect conditions having 12–18 TWS. At pictures leading the multihull class and finish first amongst all boats on the round the island race course (about 20NM).
Picture by Jimmie Hoover 2011
Sweet Chariot on Kata Beach by Amalgam Virgo
Flow & Membrain Runs On the SeaCart 26
The team behind the SeaCart 26 has not saved any energy or expense in our aim to provide the market with the best sports multihull package possible. To make sure the mast and sail shapes are optimized an extensive flow and membrain program have been run using input from test sailing sessions and racing the first SeaCart 26. The findings have been implemented on boat No 2 which is now out sailing.
This sounds like a lot of mumbo jumbo but it is in fact extremely valuable if you are serious about your intentions. For those who would like to read further into the matter we have posted North Sails notes on the subject below. When you read on you get the picture that this is not an task done quickly in a few minutes, to the contrary, it’s seriously time consuming and highly scientific. Pictures in the article show a SeaCart 26 under OD Gennaker.
DESMAN [TM] … rig and sail modeling. Desman creates a complete rig/sail model in a three-dimensional environment. In Desman, North designers can specify mast size, rigging position, rigging attachment points at the deck and trimming locations. The modeled sail/rig system incorporates the mechanical properties of the spars, standing rigging, running rigging and sails in terms of moments of inertia, sail and spar surface area, materials stiffness and resistance to stretch. Later in the process, Membrain (described later) uses the Desman model to determine deformation under load for the sail and every piece of standing and running rigging, right down to stretch in the sheets and halyards. Link to North Sails Desman.
3D LAYOUT [TM] … define the structure of sail. 3D Layout is used to define the structure of a sail in terms of yarn layouts, panel layouts, tape layouts, yarn density, and/or film types. Output from 3D Layout is used to shape 3DL molds or provide seam curves for paneled sails. All yarns are plotted in the same 3-dimensional space they will assume when sailing. 3D shapes are translated into panel layouts for downwind sails. 3D Layout also has powerful analytical tools which can be used independently or in conjunction with Membrain. Link to North Sails 3D Layout.
FLOW [TM] … applies wind pressure to 3-dimensional sail mold. Using Flow, wind pressure is introduced over the sail’s three-dimensional “mold” to produce a pressure field on the sail’s surface. The pressure varies over the surfaces based on the size and shape of the sail and the strength and direction of the air flow. The resulting pressure field is then linked directly to Membrain for finite element analysis. Flow also reports the drive and moments developed by sails, which can later be used by either the North Sails VPP or other VPPs for sail performance analysis. Link to North Sails Flow.
MEMBRAIN [TM] … balances wind pressure, sail shape and rig. Membrain takes the sail/rig model from Desman and applies pressure fields from Flow, deforming the mast and sail as a single unified structure. As the sail/rig structure is deformed, the shape of the sail changes, so Membrain then links back to Flow to acquire new pressure fields for the deformed surface. This changes the sail shape in Membrain yet again, so the process is repeated until there is stable balance between pressure and rig/sail deformation. Membrain can be used to test sail shapes, optimize mast design and rig tune, create sail shapes to test in North VPP, check loads for designers, and more. Membrain applies pressure to the integrated rig/sail system and then iterates the results back to Flow until pressure and sail deformation achieves a stable balance. Link to North Sails Membrain.
SeaCart 26 #2 Under Sail
Last week SeaCart 26 number two set sail in Pattaya, Thailand. Two square metres more area on both jib and main, on this boat 3Di North Sails. Updated steering system, custom built shrouds and plenty of refined details all over.
Under main and Code 0 (tack to high on picture)
Under OD gennaker. Custom built Dyneema SK75 shrouds, rated for 12 tonnes.
Under 3Di main and jib. 1:16 on jib fine tune sheet. Long jib batten to the left.
High speed towing. All sails except main on furler.
New steering system. Long cross bar incl. toe in/out control. Tiller and an extension on each side.
New square top main. Effective racing deck layout. Note steering cross bar behind main track.
Proud Assembly Crew
The build team behind every SeaCart 26 work long and hard at the factory ensuring every boat is finished to perfection. Once a boat is complete and ready for launch there is a sense of acheivement adding the final touches at the marina. The crew and boat look as good as the new branded foil bags below!
Tested to the Extreme!
The prototype mast has gone down while flying two hulls under gennaker. The boat was fully loaded up with four 80–100+kg guys onboard, none of whom sustained any injuries. After stabilising the rig on deck the crew made their way back to dock under motor. The aim with the prototype mast was to test it to extremes before commencing full production, so we are happy to announce we have ticked that box and ready to move forward.
The reason for failure has been attributed to the capability of the boat to be sailed hard at high angles under gennaker. The boat has a stunning righting moment 15% higher than initially estimated. The One Design (A3) gennaker is a flat furling sail, (yellow, pictured above) which allows you to sail very ‘hot’ to power up, build speed and lift the main hull going ‘wild’ in medium breeze. This does however create much larger compressive and torsional forces in the mast when compared to sailing normal angles downwind. With the addition of curved foils in the floats the dynamic load goes up even more because the lift they provide enables you to push the boat much harder.
During the test sailing period (Aug–Oct) we have observed and recorded this and even before the breaking of the prototype we revisited the laminate plan for subsequent masts. And so concludes the test period, our goals have been acheived and now we look forward to some great class racing in the near future.
The SeaCart Test Sailing Team
SeaCart 26 – the Wild Thing!
Captured on Baggen bay by Pontus Johansson
The Boys having fun learning to push the limits more and more. Watch video below…
Don’t miss out on all new photos in the Gallery!