Closing in on launching #1

Time for another update:

We have made major strides over the past few months: The foredeck and pilothouse on SeaPiper #1 have been joined to the hull, the mid cockpit deck is installed. In the pictures you can clearly see the very extensive center cockpit drainage (six oval ports on each side of the cockpit).

After placing the shaft log we installed the engine, prop shaft, rudder and steering, built and pressure tested the tanks and installed them. We have a total of six tanks on board: three water tanks (140 USG total capacity), one waste holding tank which is 32 USG and two wing fuel tanks of 135 USG each for a total of 270 USG.

There is a significant amount of plumbing going into the boat: the four watertight compartments make the boat virtually unsinkable but also mean we have four individual bilges each with a bilge pump system. There’s raw water systems for the main engine, a separate system for the genset, separate fuel systems for main engine and genset, and then our fresh water system: pressure pump, water heater, all the hot and cold lines, etc.

At the same time we have the electrical systems going in: batteries, RBS battery switches, a custom designed electrical panel, inverter/charger, interior and navigation lights, engine panel, and all operational switch gear.

And most importantly: all these systems need to be cleanly installed with good access everywhere and excellent labeling which will enable any owner to easily understand the system layout for easy troubleshooting should the need arise. We place a lot of value on this.

Pretty soon we will be able to launch #1 for its initial sea trials. Keep an eye on this news blog for updates on SeaPiper!




SeaPiper #1 and #2 coming together

We are assembling SeaPiper #1 and #2 at this time. The main FRP parts for both boats have all been laid up, and after assembling these we will start laying up hull #3 while the outfitting and finishing is going on for #1 and #2. For me personally it is really exciting to see these first SeaPiper vessels coming together after all this time working on the design. As expected: #1 is turning out to be the most time consuming with lots of little tweaks being done which are translated into tooling changes ensuring that all the components for future boats will go together easily.

I am truly pleased with how the boat is turning out. Spending a tremendous amount of time fine tuning the design up front has paid off: This vessel is going to be strong and seaworthy, and offer well laid out and comfortable accommodations for its size.

Currently all the FRP tanks are being installed, the engine and shaft log is going into #1 and we are building the rudder systems which will be installed next. Once the interior is fixed in place permanently we will create the pilothouse to hull joint and install its roof top. The foredeck will then be joined to the hull and then final outfitting can begin.

Below are a few pictures of the build:








Hull #1 out of the mold

We have made good headway: we just finished hull #1 and removed it from the mold.

SeaPiper’s hull is constructed of heavy solid laminate below the waterline and has been cored above the waterline which gives it tremendous stiffness and impact resistance and great thermal and sound insulating properties. This hull is built to last.

The GRID pattern of bulkheads is built out of laminated Nidacore material making it strong, very stiff and utterly maintenance free.

Currently we are building tanks, decks and interiors, and we will update this blog soon with more installed components.

Keep coming back here for more news or reach out to get more information.




More tooling being built

We are making progress with building the tooling for SeaPiper: the hull plug is completed, the main interior molds are done, the tank molds are finished, the mid cockpit got its own dedicated mold: lots has been going on with lots of time spent on ensuring the perfect fit between the various components.

Currently we are building the female mold off the finished hull plug, and in the very near future we will have hull #1 arriving at our San Diego facility. We will then start building up SeaPiper #1.

In the meantime we have been receiving more and more components from our various suppliers: hatches, port lites, trim pieces, interior lights, navigation lights, pumps, steering components, the main engine for SeaPiper #1, exhaust parts, etc..

Soon we’ll have more updates!


SeaPiper - Pilothouse

SeaPiper – Pilothouse

seapiper_head_shower_mold IMG_0785 forecabin_interior_mold seapiper_ph_roof_plug  seapiper_mid_cockpit_deck_moldseapiper_forward_deck seapiper_main_interior seapiper_fuel_tank_portseaiper_fuel_tankpilothouse_forwardpilothouse


Forecabin Deck

Mold Building and Fairing

We are making major progress on SeaPiper. The hull plug is being faired, and we have started on most of the major molds that are needed: the pilothouse and galley interior, the aft cockpit, the forecabin deck, and the forecabin interior.

The hull is starting to look pretty nice and the other components are taking shape too. Major progress!

A few pictures showing various stages of construction:


SeaPiper Hull Plug

SeaPiper Hull Plug


Main Interior Mold

Main Interior Mold

Aft Cockpit Plug

Aft Cockpit Plug


SeaPiper 35 hull plug

Building SeaPiper tooling

Over the past few months we have been building tooling for SeaPiper! We have sold SeaPipers #1 thru #4 so we are proceeding with all the FRP tooling that will be required to build the boats: a female hull mold, deck molds, superstructure molds, etc. It is very exciting to see it all come together now.

The hull plug (which is needed to build a female mold) is currently in the final stage of construction and is being fully faired. It will be used to create the female mold for the hull.

We are truly excited to see the boat take shape.

Keep an eye on this NEWS blog for the latest updates.




SeaPiper Engine Choices

SeaPiper is offering two engines: The Betamarine BETA 85 and the Yanmar 4JH110.

The standard SeaPiper engine will be the Betamarine BETA 85. This new engine is based on the modern Kubota engine family and shares most of the core components and technology with these engines. Betamarine has a long history of marinizing Kubota engines and their engine power packages have an superb reputation for high reliability. Beta engines have been used for a long time in sailboat repowering worldwide.

The beauty of this engine is the unparalleled simplicity: there are no engine electronics at all. The engineers have been able to meet EPA Tier III requirements without the use of complex electronics: the BETA 85 is a 2800rpm direct injection diesel with turbo, heat exchanger, a mechanical line pump and a relatively heavy flywheel. As long as there is fuel this diesel engine will run, offering smooth operation and tremendous ease of maintenance. SeaPiper will offer about 10 knots of speed with this 85 hp engine.

Betamarine BETA 85 Engine

Betamarine BETA 85 Engine

We also offer SeaPiper with the new Yanmar 4JH110. This engine is a modern electronically controlled common rail diesel engine with rotary injection pump. Its engine block is completely aluminum and engine RPM is higher at 3200rpm with a power output of 110 hp, meeting EPA Tier III requirements. Yanmar has a long standing reputation offering highly reliable engine packages. The 4JH110 is incredibly smooth and quiet and will give SeaPiper a speed around 11 knots.

Both engines are equally good choices for SeaPiper, with a different usage in mind: for maximizing range, economy and ease of maintenance the Beta 85 will be a great choice. For maximizing speed, and silky smooth car engine like running the Yanmar 4JH110 comes out as an equally great choice.

Check out our SeaPiper Engine Choices page for more detailed information on both engines.

Yanmar 4JH110 engine

Yanmar 4JH110 engine


Deck Sockets and Locking Feet SeaPiper 34

Deck Boxes / Cockpit Seating and Boarding Ladder

SeaPiper 34 offers comfortable Cockpit Seating on Deck Boxes with comfortable seat cushions. These deck boxes offer great storage space on deck and are mounted to the cockpit sole using shallow deck sockets and separate feet made in 316 stainless steel. The feet have external tabs that lock behind corresponding tabs in the deck sockets if they are turned 90 degrees. They are stopped from rotating further by a pin which is pushed through both the foot as well as the sleeve it rotates in.

This locking mechanism is a simple and structurally strong solution that allows the Deck Boxes / Cockpit Seating units to be removed at will and also leave the boat owner feeling secure about the deck box mounts.

The boat comes with a Boarding Ladder that mounts into deck sockets right inside the Side Boarding Door opening and because it uses the same locking mechanism as the deck boxes it offers easy deployment and removal. The boarding ladder can also be installed on the Swim Step aft, again using the same deck sockets and locking pins. Updates with more detail images are soon to follow on the Main Gallery and the Center Cockpit pages.

We will continue to update the News Blog pages with SeaPiper 34 feature highlights and construction updates. People interested in the SeaPiper 34 Trawler please browse our extensive internet website on

Do not hesitate to contact us if you have any questions about this new Trawler or if you are interested in becoming a SeaPiper 34 owner yourself.


Seapiper 34 Motorsailer preliminary

Seapiper 34 Motorsailer – Preliminary

We have been working on a motorsailing version of the Seapiper 34. The base Seapiper 34 already has a mast support under the cockpit that distributes the mast loads to the main support beams in the keel and we already incorporated structural support for chain plates and fore and aft stays.

The Seapiper 34 Motorsailer has a mast that is stepped on deck and will have stays with single spreaders. We are doing the design calculations now to get the exact right amount of sail area on the motorsailer. This type of setup will sail well with the wind aft of the beam, in other situations you will be motorsailing with the engine ticking over.

Note that the image provided is only preliminary. We have not designed the main boom yet, there are no stays and there are no spreaders, and we have not yet specified which type of furlers will be used for jib and main. The key is (again!) to keep the whole rig structurally simple with very easy sail handling which will make the boat pleasant to use under sail and will ensure an easy to maintain rig.

Based on feedback from the market we think the Seapiper 34 Motorsailer will be a very popular variant of the base Seapiper 34 Trawler.

More updates on the Motorsailer soon to follow on



Seapiper Facebook Page

We launched our Seapiper Facebook page today. Please have a look and LIKE us on Facebook!

We will start updating our Facebook page alongside the Seapiper website with news about tooling and production for the Seapiper 34.


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