Hull No. 1 of the new LM46 performance cruiser was launched in the late summer of 2021. The project, a collaboration between Lyman-Morse founder Cabot Lyman, his son and company president Drew Lyman, and Kiwi designer Kevin Dibley, will produce a high-performance, cold-molded yacht with the comfort and ambiance of a wooden boat but delivering 10 knots of speed under both sail and power. The yacht has been designed and engineered for superior handling and low maintenance, equipped with only the essential systems for enjoying an uncomplicated, rewarding experience on the water.

Scroll down for photos of the construction of LM46 hull No. 1. 


  • lod 45'8"
  • lwl 43'3"
  • beam 13'5"
  • draft 6'0"
  • displacement 24,750 lbs.
  • fuel capacity 81 gallons
  • water capacity 156 gallons
  • type Sail - 1,183 sq. ft.
  • designed by Kevin Dibley
  • builder Lyman-Morse Boatbuilding Co.
  • model LM46
  • year 2021
  • construction Cold-molded wood composite
  • hull material Douglas Fir/Western Red Cedar
  • configuration Sloop
  • location Thomaston, Maine
  • boat engine Yanmar 4JH80
  • horsepower 80 hp
LM46 Hull No. 1 profile with keel, rudder, and Saildrive
LM46 Double Aft Cabin Arrangement

LM46: Putting the Pieces Together

Time-lapse photography shows the skill and coordination required to complete another major milestone in the construction of LM46 hull No. 1. With the deck installed, final fit-out begins prior to a summer 2021 launch of this stunning performance cruising yacht.

How do You Flip a 46′ yacht hull?

You guessed it…Very carefully.
In this clip you’ll see what we have been talking about with this combination of modern design and a wood hull and interior. The result – a boat with speed and comfort.


Watch this major milestone in this video, and scroll down to review hull No. 1 progress.

Taking Shape: LM46 Construction

The Whiskey Plank is the final plank required to complete the outer shell of a wooden hull. To mark the occasion, it is traditional to take a brief moment to celebrate its mounting  with a celebration involving shots of whiskey all around…


Time-Lapse: Planking LM46 Hull #1

A GoPro time-lapse captures the planking of the new LM46 performance yacht under construction at Lyman-Morse. The cold-molding process involves layering western red cedar and epoxy applied in 4 rounds, two of which are seen here. A bag is then used to create a vacuum to ensure a tight seal and draw uniform pressure across the epoxy to cure.

LM46 Mock-Up Tour

Lyman-Morse Founder Cabot Lyman walks through the LM46 full-size mockup and explains some of the design considerations included in this breakthrough performance cruising yacht.

Spectacular in its simplicity

Presenting the LM46, a high-performance, bespoke sailing yacht that will reconnect you to what matters. With a low-maintenance, cold-molded hull that offers the unmatched, comfortable motion and ambiance of a wooden boat with the 10-knot-plus speeds of a modern performance yacht, you and your family will form a bond with the LM46 that will last generations.

Partnering with longtime friend and acclaimed Kiwi yacht designer Kevin Dibley, we’ve designed the LM46 to return sailing to being about sharing time with friends and family, enjoying a drink in the cockpit after a great day underway, and appreciating the beauty of our surroundings. Comfort doesn’t come from jamming every shoreside amenity into your boat, it comes from the reassuring motion of a Douglas Fir/Western Red Cedar hull sliding quietly through the water, the knowledge that you have everything you need aboard (and nothing more), and the satisfaction of owning a yacht that makes a statement about its owner. Our goal for the LM46 is simple: To have you sailing within 5 minutes of stepping aboard, and to be able to step off within 5 minutes of picking up your mooring.

Make no mistake: This is no docile, classic wooden boat. We have designed an extremely fast yacht, one that can put itself at the top of the fleet in almost any race, coastal or offshore. A top New Zealand design coupled with cutting-edge Lyman-Morse Maine craftsmanship makes for a winning combination.

Scroll down to learn more about what makes the LM46 truly unique, and Contact us today and rediscover what it means to be on a boat with soul.

Powerful in its Performance

The LM46 was built with the recognition that two boats sailing in the same direction, at the same time, constitutes a race. A powerful cruising rig that includes swept-back spreaders and 1,183 square feet of sail, including a squaretop main, gives the LM46 an impressive turn of speed; rolling out the optional asymmetrical spinnaker steps thing up a notch and lets the yacht hit speeds of 10 knots or more. When conditions are right, this yacht can click off 240 miles per day, while the wooden hull, 43’ waterline length, and comfortable displacement-length ratio of 133 allows for one-handed steering or easy steering by autopilot, no matter the weather.

Like everything else aboard the LM46, sail-handling is kept simple, efficient, and user-friendly: roller furling for the jib, a detachable staysail, and a mainsail furling system that is fast, easy, and effective. Following the French lead, we’re keeping weight out of the bow of the LM46 by using almost all anchor rode instead of chain. Quiet, easy — just like the LM46 itself.

And while the LM46 revels under sail, it will also deliver its crew just as swiftly under power, with an 80-horsepower Yanmar diesel powering the yacht at up to 10 knots. Because sometimes, alas, you really do need to be home by Sunday night.

Layout & Design

One word sums up the layout and design of the LM46: Soul. Too many boats built and bought today lack this key element, but by carefully considering every aspect of this new yacht – including the hull material itself – boatbuilders Cabot and Heidi Lyman and yacht designer Kevin Dibley have created a boat that is ingenious in its simplicity, efficiency, and performance.

The spacious cockpit features 6’5″ seats, ideal for accommodating guests or, when the weather is right, a night of sleeping under the stars. Twin helms offer unrivaled visibility, while the drop-down transom affords no-step access to and from the dinghy. All sail-handling is easily managed without ever leaving the cockpit.

Step below and enjoy a seat in the spacious salon and take in the V-groove overhead and Herreshoff-styled bulkheads and trim – you’ll instantly find yourself transported from your daily life to somewhere quieter, simpler, more elegant. The wraparound galley, designed using the lessons Cabot and Heidi learned during 16 years of living on their boats around the world, is as appropriate to preparing a three-course dinner as it is for mixing up a batch of evening cocktails. The aft full berth makes for a welcoming guest cabin or, when offshore, the ideal sea berth.

Moving forward, to starboard you’ll find a separate head with vanity and a shower. The huge forepeak includes a centerline queen bed, allowing access from each side, and storage for a weekend or a month’s worth of clothes and gear. Here, as everywhere aboard the LM46, you’ll be struck as much by what you see as what you don’t – we’ve included everything that you need and nothing that you don’t (watermaker, A/C, excess electronics).

Recognizing that every crew has unique needs and desires in their family yacht, the LM46 is available in three cabin configurations and two keel options. The single aft cabin version allows for a huge lazarette to starboard, while a second head option shifts the aft cabin to starboard and still allows for a cockpit locker. The double aft cabin version, which is being installed on LM46 hull No. 1, offers the most accommodations of all. At just 6′, the shoal draft keel version on hull No. 1 allows the yacht to explore shallow anchorages, while the optional deeper 7’7″ keel would increase performance even further.

Sails & Rigging


  • Fully battened squaretop main
  • 100% jib
  • Asymmetrical spinnaker (optional)
  • Staysail (optional)
  • Code Zero (optional)


  • Mast – Aluminum or carbon (air clearance of 63’10” allows access under ICW bridges)

Sail handling:

  • Primary and secondary sheet winches, easily reached by helmsman and crew with the ability to stand and grind without leaving the cockpit
  • Halyard winches – Manual or Electric (optional), also used for reefing lines, located on cabinhouse top
  • Spinlock jammers/clutches


  • Feathering propeller by MaxProp
  • Isotemp hot water heater (plumbed to engine)
  • Force 10 propane stove, with Trident controls and detector
  • Espar heater (optional, for those in higher latitudes)
  • Jabsco pressure water pump
  • Lewmar low-profile deck hatches
  • 640AH Lithium Phosphate batteries (optional) for unlimited cycles
  • 44 lbs CQR anchor, equipped with 20’ of 3/8″ chain and 150’of 3/4″ Yale Brait anchor rode
  • Lewmar anchor windlass
  • Blue Seas electrical panel at navigation station, with 12VDC  and 110 AC breakers
  • Isotherm refrigerator/freezer, with evaporation plates
  • Polar stainless double galley sink
  • Scandvik faucets
  • 78-gallon custom stainless water tanks (2)
  • 81-gallon custom aluminum fuel tank
  • Polyethylene Vetus holding tank
  • Tecma marine head
  • Wine glasses with wooden rack
  • Silverware
  • Life preservers (optional – Spinlock vest-type)
  • Sailing instruments
  • Navionics plotter on GPS-enabled iPad
  • Broadband radar -12-mile range
  • LED lighting throughout
  • Marelon seacocks by Forespar
  • 120-amp engine alternator
  • Jabsco anchor washdown pump (optional)
  • Groco Sea Strainers
  • Centek muffler, with stripper for silent charging
  • 4″ blower for engine compartment
  • Scott vented loops
  • Rule and Whale automatic bilge pumps
  • Whale manual bilge pump (near helm)
  • Seadog deck fills and pumpout deck fitting
  • Perko hinges (head door)
  • Cushions – mid-density foam with ultrasuede covers on seats, canvas on berths


The LM46 uses modern design and technology to improve upon the most sustainable building material ever created: Wood. Wooden boats 70 years old or more are still winning offshore and coastal races, sailing over many horizons, and, when necessary, are far easier to bring back to life after years of neglect. The Douglas Fir and Western Red Cedar planks that comprise the LM46’s nearly 1”-thick hull are sustainable, originating from sound growth- and forest-management plans and thousands of years of experience. Using the cold-molded building process results in a hull that delivers a quiet ride underway and is both flexible and incredibly strong. A layer of glass on the topsides increases durability and reduces maintenance. Wisely employing modern building materials and techniques and eliminating excess electronics allows us build a low-maintenance yacht that breaks the cycle of having to travel from boatyard to boatyard to keep a yacht in top condition – an ironic claim for the owner of a service yard to make, we’ll admit!

Lyman-Morse’s intelligent use of its Haas GR712 Computer Numerical Control (CNC) machine to cut planks, bulkheads, and joinery reduces costs for the hull and deck construction, but we have not thrown out the baby with the bathwater in the LM46. The cockpit, deck, and cabinhouse, often the site of water-infiltration in older wooden boats, feature a composite structure that keeps things bone-dry belowdecks. To use anything other than modern materials in these locations would be irresponsible.

Whenever possible, all items for the LM46 are built as modular units outside the boat – the same system used by wooden production boatbuilders half a century ago and somehow forgotten. We use such time-tested processes, combined with expert Maine shipwrights and high-tech tools such as lasers and 3D printers, to create a construction plan that is competitive with production boats but that yields a yacht that is meaningful and carefully constructed – a world apart from the fiberglass cookie-cutter boats that fill marinas and boat shows these days.

Construction Gallery

Reconnecting - Family Sailing

The LM46 doesn’t deny the “real” world – it puts it in perspective.

More than 170,000 miles of sailing together, including a three-year circumnavigation with their three boys and numerous offshore races and trips to the Caribbean and the South Pacific, has shown Cabot and Heidi Lyman one thing: Boats have become too complicated. As the founders and owners of the world-renowned Lyman-Morse Boatbuilding Company for the past 42 years, they’ve built over 110 vessels, many of them equipped with watermakers, in-boom furling, and digital screens of all shapes and sizes. For many of us, all that gadgetry just distances us from why we started sailing in the first place: Reconnecting to a simpler way of life. Our day-to-day lives have become consumed with devices, passwords, and updates. Over time, our boats have tried to keep pace instead of providing an escape, a place where you can forget the world and simply enjoy. The LM46 changes that.

Spectacular in its simplicity, powerful in its performance, unparalleled in its quality. Contact us today and make the LM46 a member of your sailing family.


The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information, as components are subject to change. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.


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