The first hull in the award-winning LM46 series, Hopgrasser has the prestige and pedigree rarely found in the yachting world. Her conceptualization, construction, maintenance and upgrades have all been overseen exclusively by Lyman-Morse. Back from a winter of cruising in the Bahamas, and successful performances on the New England racing circuit, Hopgrasser is ready to sail away on adventures. 
Hopgrasser’s build and finish quality is at the highest level in the marine industry, from the Nitronic 50 keel bolts up to the titanium chain plates and the uniquely designed solid carbon bow sprit. She is equipped with many upgrades, such as a carbon mast and boom, lithium ion batteries, Espar heater, varnished teak cap rail and teak deck. Since her completion the owner has made further upgrades including a Bermuda Race Safety Package and a Doyle Carbon Tweener headsail.

We welcome all inquiries to discuss and show Hopgrasser.  She is truly a special boat to arrive on the sail boat market.



  • 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 Camden, Maine
  • boat engine Yanmar 4JH80
  • horsepower 80HP


This Lyman-Morse sailing yacht was purposely built for great performance, but also for family cruising pairing the carbon mast with square top main with a 6 foot keel that allows access to sailing in the Chesapeake Bay, Bahamas and beyond.

“Cold-molded construction, top-notch systems, a powerful sail plan, and an interior that is both practical and lovely at the same time. Wow! The Lyman-Morse LM 46 is a heck of a boat. Purpose-built for an experienced owner, for sure, but in terms of a pure sailing machine, the 46 was the standout boat in this year’s lineup of new models.” said Cruising World judge Mark Phillsbury in his awarding Hopgrasser Boat of the Year 2023.

Designed as 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 from Kevin Dibley coupled with cutting-edge Lyman-Morse  craftsmanship makes for a winning combination.

Loaded with a powerful cruising rig that includes swept-back spreaders and 1,183 square feet of sail, including a squaretop main and running back stays gives Hopgrasser an impressive turn of speed letting the yacht hit speeds of 10 knots and more.  Setting asymmetrical spinnaker, Code Zero or Tweener steps thing up a notch. When conditions are right, this yacht can click off 240 miles per day, while the wood composite 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.


Lyman-Morse used the cold-molded building process resulting in a hull that delivers a quiet ride underway and is incredibly strong. The hull’s inner layer is tongue and groove Douglas Fir, followed by four layers Western Red Cedar laid on opposing 45 and 60 degree angles.  A final layer of epoxy-infused fiberglass on the topsides increases durability, and reduces maintenance, and creates a great paint surface.

The combination of using Lyman-Morse’s Haas GR712 Computer Numerical Control (CNC) router, 3d Printer, Plasma cutter and other hi-tech CNC machines to cut planks, bulkheads, custom metal components, detailed trim pieces, and joinery allowed the builders to reduce tolerances and create a stiff but forgiving yacht.

Lyman-Morse built Hopgrasser to last, evident in the choice to use Nitronic 50 keel bolts and titanium chain plates and head stay


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.


Aside from the hull design benefitting Hopgrasser’s amazing performance it provides a wonderful cockpit.  The beam carrying aft allows for deep settees and the dual helms.  With the two helms allowing for great visibility on either tack, it also provides room for multiple line handling, especially if flying the asymmetrical or Code Zero.

Another great feature of this cockpit is the fold-down transom.  This allows for easy dinghy loading and unloading, a wonderful swim deck, and expands the cockpit.

  • Custom dodger with built-in solar panel
  • Custom folding cockpit cushions
  • Port and starboard settee storage.
  • Painted composite cockpit table with two folding leaves and built in fiddles
  • Flush B&G Chartplotter in port bulkhead 
  • Hot and Cold shower


Lyman-Morse built a full composite deck, built on a female mold.  Hopgrasser’s first owner opted for the teak deck and cockpit, non-skid on the cabinhouse, and varnish teak toe rail.

  • The cabin house has two flush hatches forward of the mast
  • Large sealed sky light over main salon with electric privacy mode
  • Two long fixed windows in the cabin sides
  • Specially designed integral solid carbon fiber bowsprit housing the anchor roller and holding the spinnaker and code zero halyards and tack lines.
  • Aquamet 22 mooring rod
  • SeaSmart Pop Up cleats mounted on the cap rail.  Three per side.


  • 2021 Doyle Carbon Technora fully battened square top mainsail.
  • 2021 Doyle Carbon TechnoraAP Jib 
  • 2022 Doyle BX 10 Tweener 
  • Doyle Dacron Storm Jib
  • Doyle Dacron Heavy Weather Jib
  • Doyle Carbon Code Zero CZ 15 GP
  • Doyle Airx 600 A1.5 Spinnaker


Hopgrasser is outfitted with a full B&G electronics package to optimize all the latest technology for safety and sailing performance.

Cockpit and Deck:

  • B&G Nemisis 9 Sailing Display on mast.
  • Port and Starboard B&G Triton2 4″ multi-purpose sailing display
  • B&G Zeus 3S 16″ Chartplotter with C-Map
  • B&G Halo 20 pulse compression radar
  • Port and Starboard Plastimo Contest 103 compasses
  • B&G Triton2 auto-pilot keypad
  • B&G ZG 100 GPS antenna
  • B&G Vertical Wind Sensor pack
  • Iridium antenna

Nav. Station:

  • B&G H5000 display
  • B&G V60-B VHF



Hopgrasser’s original owner decided to upgrade the mast to carbon fiber to reduce weight aloft and improve racing and cruising performance. Great design and construction efforts went into the hull’s structural carbon ring frame, allowing the upper and lower shrouds to both stay out board keeping the walkways clear.  The powerful cruising rig includes swept-back spreaders that eliminate the need for a backstay instead optimizing the adjustability of running back stays

  • Bridge clearance of 63’10” allows access under ICW bridges.
  • Carbon fiber boom
  • Rod rigging
  • Titanium chain plates and headstay
  • Set up with square top main sail
  • Titanium chain-plates and stem head plate
  • Marlow line Blue Ocean Package running rigging



  • I: 16.509 m / 54.16 ft.
  • P: 16.313 m /  53.52 ft.
  • J: 5.195 m / 17.04 ft.
  • E: 6.127 m / 20.10 ft.
  • ISP: 17.721 m / 58.14 ft.
  • JSP: 6.501 m / 21.33 ft.



Hopgrasser’s galley is well designed to provide amazing function while still looking like a piece of art. Located to starboard as you come down the companionway, the galley includes a double SS sink forward, stove outboard, and drop in refer between the two.  Another great feature is the slide out trash can on the inboard side.

  • Satin varnished walnut cabinetry
  • White Corian countertops with tall fiddle
  • Deep stainless steel double sink with chrome faucet including separate sprayer
  • Separate filtered drinking water faucet
  • Gimballed Force10 propane stove with 4 burners and oven
  • Custom walnut holders for glasses, mugs and dishes
  • Upgraded large volume reefer with customized shelves
  • Additional outboard storage
  • Inboard cubbies and aft cubbies with baskets
  • Custom canvas utensil holder aft



Quarter Berths

Being a family boat, the owners opted for port and starboard quarter berths for their two daughters.  These berths are more than spacious enough for grown adults, and have a pull-out cushion to make it either easier to get in and out of the bunk or enlarge the sleeping surface.

Both equipped with:

  • Fans
  • Upper canvas pouches for storage
  • Reading lights
  • Opening ports

Navigation Station

Located across from the galley on the port side, the nav. seat faces forward with all the vessel’s communication, navigation and electrical switches and controls easily reached.  With all satin varnish walnut and comfortable linen covered cushions the station is beautiful, but also extremely functional.

  • Large Nav. desk with lift up lid for additional storage.
  • Tank Tender panel
  • Electrical panel, including remote battery switches
  • B&G VHF V60-B
  • Iridium Sat Phone with external antenna
  • Outboard storage
  • Rear wet locker and storage compartments

Main Salon

A lot of work went into designing a very strong carbon ring frame to keep both D1 shrouds outboard on deck.  The added benefit of that is a more wide-open salon.  Add to that an extra large overhead window and extra long cabin side windows, and Hopgrasser enjoys a spacious and bright living and eating cabin.  The classic Herreshoff styled overhead painted high-gloss white, and the four bright dome lights ensures the space is bright any time of day. The customized walnut overhead handrails makes staying upright and secure a thing of ease and beauty.

There is a long port settee with ample storage under the seat and behind the seat back.  The starboard settee is “L” shape with an outboard pilot berth.  Below the aft cushion is an added freezer.  The walnut salon table has folding leaves with the inboard one being extra wide for appropriate dining for the crew. Storage compartments in the center of the table contains napkins, condiments, and the obligatory cribbage board.

Forward of the port settee is the all-important customized bar   Also, adding some additional storage compartments below.

  • Lee cloths for both settees and starboard sea berth
  • Fans
  • Reading lights
  • Custom felt bins in the open storage compartments.


Across from the ship’s bar is the other essential area, the head.  The space was specifically designed to have separate shower with a folding door.  The boats oak veneer sole carries through the head and shower.

Equipped with:

  • Electric Tecma toilet on a plinth.
  • Customized white Corian sink with chrome faucet
  • Upper and lower varnish walnut cabinetry
  • Overhead hatch
  • Customized fold away door

Owner’s Cabin

The more modern oak veneered sole leads to the owners’ cabin forward.  Using the classic center line queen idea, Hopgrasser’s execution is stunning. The Douglas fir hull lights up the space and the rich dark colored walnut furniture is a wonderful compliment.

Looks are important, but getting a great night sleep is essential.  There is a custom 12″ thick memory foam mattress and an overhead opening hatch to maintain comfort and air flow.

The raised berth allows for two very large pull out drawers.  Additionally, there is outboard port and starboard storage.


  • This field is for validation purposes and should be left unchanged.