Covers for Hulls and Mast

For road transportation or moored at the dock or awaiting sailing on the trolly on land a cover is what you looking for. Now we have made super duper covers for mast, boom, crossbar, front beams, floats and mainhull. Also available is the special cockpit cover that let you keep the hatches open, sails on the seats for drying out and sun protection. Works a treat!

Boom Cover works on land or…

…in the wet.

The SeaCart Team


Rebuild from Container Shipping

A few days late the boat arrived to St. Maarten. Monday Morning at 10:00 we see our container for the first time in five weeks. We built the boat during Monday and got her ready for mast and splashing. First thing next morning we put her in the water. Here we present how we rebuilded her to a trimaran plus few tips on the way. Enjoy!

Beams and seats lean on the container. Slowly rolling out the boat.

Beams attached to the floats ready to be assambled whith the main hull. Mast on the ground to the left.

Beams, yokes, waterstays and rudder assambled. Now she’s ready for the water and mast.

Shiny and well polished hulls.

Mast pulled forward (using the gennaker halyard) to make room for the lifting strops and crane hook. Check how loose the jib on the forestay is!

Gennaker halyard tight. Forestay lose. Plenty of Mc. Lube spray on the centre board.

Better than sweet, she floats, mast pulled back to sailing position – all systems go!

Here’s the link to the container packing session!

Link to the SeaCart 26 tips & tricks page on Pinterest

The SeaCart Build Team


Shipping in a 40 ft Container

Packing a SeaCart 26 trimaran might look hard but are in fact quite simple. To fit the height and beam inside a standard 40 ft container* we have to 1) remove the beams and trampolines 2) turn the floats so they face front to stern of the mainhull. The hard passage is through the container doors – after those it get spacier.

Storage: Centre boards, rudder heads are stored under the large hatch in the cockpit. Rudder foils, boom and long pool (with tiller extensions on) connecting each rudder head are fit inside the cockpit and through the mast step bulkhead hole leading into the forward compartment. Sails, battens is stored on the cockpit floor. Fenders etc. inside the forward compartment which you enter through the forward deck hatch. Mast goes on top of the mainhull on flat fenders to keep the height as low as possible.

Below pictures of the process and step to step comments. Enjoy!

Port float is removed by disconnect the four beam bolts, nuts and washers. Bolt on a piece of wood where the float use to sit. We used the same bolt kit as for the floats (guess we where lucky). Two persons easily carry one side that includes; two beams, trampoline and connector wood. Remove the four (4) hinge pins and tie the two hinge around the beam (don’t disconnect them from the beam). This make it easier to assamble at destination.

No need to use fancy carts. The floats can be on the ground – when loading just turn the mainhull and road trailer 180 degrees and load. Note that the soft material which the floats rests on in road driving mode (top picture)  is changed to wood cradles on each side of the mainhull. This is not a must, you can keep the soft material and strap the float to the mainhull. Move the mast forward so the trailer hit the container back wall first. It’s a nice feature that the mast fit inside the container in one piece. The trailer rear light panel was removed and tied on the trailer side under the mainhull.

Then roll the beauty inside the container slow and foremost straight at the centerline. We had carpet protecting the float sides at loading. Four straps was used to secure the trailer, two in the back and two in the front lined forward and backwards to the container floor hooks. Then we moved the front of the mast to the right hand side of the opening to make room for the two beam and trampoline kits. We fitted a strap around the mast from side to side attached to the container roof half way up the mast. Make sure you have plenty of soft materials at hand, like styrofoam (white stuff on pictures), carpets (blue stuff on pictures). We used in total 8 straps and one 4:1 handybilly + a few ropes.

Road trailer and boat in the background, hand brake is on. Beam and trampoline kit’s to the right.

Beam, trampolines and mast secured just inside the container doors. Now we just have to close the door and wave goodbye!

*Standard 40 ft Container. Door: Height 2,28m, Width 2,34m. Inside: Height 2,39m, Width 2,35m, Length 12,03m.

Here’s a link to the rebuild session

Link to tips and tricks on Pinterest

The SeaCart Shipping Team


Folding Mast Up & Mast Raise System

Here the SeaCart 26 OD is ready for folding on the road trailer letting the shrouds take 80% of the float weight. We use whatever we have in our hands to get the boat on the road trailer. Most common are; slipway on road trailer or slings and a crane/forklift. Here we go;

One float folded. Ease out 20–40cm of the shroud when folding to get the float on the trailer. The weight is front heavy so we use an aluminium U-bar and a carpet dressed ‘‘skate’’ board having three centered wheels mounted on the backside that slide inside the U-bar. This system take preassure off the front folding man. On the U-bar outer end we use an aluminium T-support (or a alu. ladder as on the picture above). When folded secure the float with two slings.

Here a picture if you fold the port float first.

Both floats folded, the starboard slings are at display. Now mast down using A-frame system as you see mounted in the front of the picture.

Here we go. 3:1 purchase system hooked on the bowsprit – rope end leads to the winch.

Cover on before loading

Done and dusted – Ready for the road trip back to Stockholm.

or to Cannes in France!

Slipway launch using a road trailer and an Audi A4.

Forklift and slings. Mast in front the forks!

Use two blocks of styrofoam as stands. Easy to tip the boat from one side to the other.

The SeaCart Team


SeaCart 26 in Multihulls World

French test in Lorient in quite tough conditions. Much fun and a good day to push the SeaCart 26 on the ruff Lorient straight. ‘‘This 26-footer took of like a dragster and didn’t stop accelerating: Fantastic!’’ Enjoy the article wether you are French or English speaking. Links below.

The SeaCart 26 Team

Links to article
Multihulls World issue 125 / FRA article / jpg picture in new window
Multihulls World issue 125 / UK article / jpg picture in new window
Multihuls World issue 125 / UK Read Online


Three SeaCart 26 Racing in the Multi Cup

Last weekend three SeaCart 26 lined up for the first time in Stockholm City for an one design distance race. Skipper Klabbe Nylöf on Samsung Challenge featured young guns Jonathan Ameln and Oliver Hanes onboard claimed first blood after a tricky race in light to medium wind and pooring rain.

Anders Lewander on Team North Sails having Stefan ‘‘Sunkan’’ Sundqvist and Gustav Gabrielsson onboard did not give up fighting until the last hundereds of meters. Anders and Sunkan is well known in the sailing business for never giving up, a claim that still stands! Racing with the first generation sails did not hold them back having years of local knowledge and decades of racing skills onboard.

Finally skipper Calle Hennix featuring an All Star SeaCart Team claimed third in the race blaming a tactical mistake :) ie. sailing too close to the south high shore line resulting in stopping for minutes. Our crew fought hard and we sailed well considering having two new crew members (to this boat) onboard; Lasse Linger, well known to us all and probably the most experienced Americas Cup and match racing sailor in Sweden and Rickard Oberpichler, having plenty of miles onboard the SeaCart 30 trimaran. They where both impressed by the boat and the ease of use of the sailing systems onboard.

In all the racing proved to be as tight as we thought it would be. All teams where fighting for the lead and did hold the lead at least twice the first 30 minutes of the race. Racing was a big success and a fantastic experience and a good start for the new Multi Cup. Teams and sponsors showing quite intense interest in the cup format (racing, media, TV) and our costs effective approach to the matter. We feel we have something going on. Are you interested in participating as team or partner let us know.

Multi Cup Schedule 2012
Grand Prix 1 Stockholm, Sandhamn 9–10 June √
Grand Prix 2 Stockholm, Big Boat Race, Nacka Strand, 16–17 June √
Grand Prix 3 Stockholm, ÅF Offshore Race, 29–30 June
Grand Prix 4 Lysekil ‘‘at Lysekil Women’s Match’’, 10 August
Grand Prix 5 Stenungsund and Tjörn Runt, 17–18 August
Grand Prix 6 Nynäshamn, 15–16 September
Grand Prix 7 Stockholm Sailing Grand Prix Riddarfjärden, 22–23 September

You find more fantastic pictures by Oskar Kihlborg below and at Sea & Co

The SeaCart 26 Team & Whyshore Events


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 detailed equipment pictures here.

Trailer & Mast Raise! – Here you find New pictures

The SeaCart Team


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.