Engine
Yanmar 4JH80
Total Power
160hp
Engine Hours
-
Class
Sail Catamaran
Length
66ft
Year
2020
Model
HH66
Capacity
-
Berthon International
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Boat Details
Description
LEE OVERLAY PARTNERS III is a custom-built HH66 catamaran designed to deliver outstanding performance on the racecourse while offering refined comfort at anchor. Configured with lightweight, high-performance racing sails and dual aft helm stations, she provides exceptional visibility, control, and safety—ideal for both competitive sailing and offshore watchkeeping. Her dedicated forward sail-handling cockpit ensures that all running rigging is managed efficiently and kept separate from the aft leisure cockpit, preserving both safety and comfort for guests. Meticulously maintained by a professional crew since her launch, LEE OVERLAY PARTNERS IIII exemplifies the perfect balance of speed, sophistication, and seagoing luxury. She is an ideal platform for discerning sailors who seek world-class performance without compromising on the comfort and amenities expected of a premium blue-water cruising yacht.
Contact Information
Other Details
Construction
Hull, Deck & Superstructure Construction:
- The latest 4th generation hull design from Morrelli and Melvin. Designed and structurally engineered to CE & ISO regulations and standards.
- Structural design and engineering by Morrelli & Melvin.
- Parts constructed in female tooling for minimum construction weight.
- Thermoformed core to increase strength and reduce weight. All installed.
- Infused carbon with Momentive epoxy, foam sandwich construction with Epoxy infused carbon fibre hull & decks.
- Additional carbon fibre reinforcing in highly loaded areas.
- The carbon laminate taping on the hull bottom connection joint is continuous and is not interrupted or omitted at or under the bulkheads.
- Watertight bulkheads seal off bow and stern compartments, in case of collision.
- Bulkheads inspected with Thermo Imaging to confirm bonding of bulkheads and decks.
- Non-structural partitions and sole floor boards built using E-glass & PVC foam vinylester; infused.
- Carbon fibre longitudinal stringers and ring frames.
- Structural composite hull floors to reduce weight and add stiffness.
- Carbon fibre chain plates.
- Underside of bridge deck without non-skid paint but with Hi VIS orange rapture.
- Metallic coloured topside paint Alex Seal Dolphin Blue M5927.
- Titanium deck bolts/screws.
Keel & Rudder:
- Twin retractable boards for upwind performance with rake control.
- T–foil rudders with flap control.
Machinery
Engine & Gearboxes:
- 2 x EPA Tier3 Yanmar 80hp. With SD 60 saildrives.
- Engine room access: A step plate is installed on top of the engine to allow easy access to the engine room, in lieu of aluminium ladder.
Maintenance & Performance:
- Cruising range at 6 knots.
- Speed under engine, 10 knots.
Propulsion & Steering:
- 3-blade folding Gori VariFold props for minimum drag, size 20" D x 14" P.
- Water temperature and oil pressure audio alarms.
- Engine throttle control/gear shift, 2 x at helm stations. ZF Controls.
- Vetus muffler water lock, and water lift with water separator, gas through under wing/chamfer panel and water below waterline.
- All Jefa Steering components.
- 2 x Carbon fibre sculptured race boat steering wheel.
- 'Version 2' transmission steering system from JEFA for reduced friction with JEFA gearboxes. With carbon tubes.
- Ceramic self-aligning bearings at all possible locations.
- 2 x 2-person inboard helm seats, fixed twin pedestals. Removable.
- Removable helm seat bases with custom carbon fitted sockets. Removed for racing. Flush mounted with carbon caps.
- Line bins storage below winches.
- Engine start and stop control at each helm.
- ZF engine throttle control at each helm.
- Wireless remote anchor windlass.
Electrical Systems
Voltage Systems:
- Zone USA 120V AC 60hz.
- Designed to ABYC regulations and standards/guidelines.
- Victron inverter.
- 120VAC power at two independent junction box distribution points around the boat.
Battery Banks:
- Lithium Batteries split into 3 x 24 VDC banks. 825AH in 275ah.
- All 3 supply winches and 2 x Cariboni hydraulic pumps.
- 2 x Li-Ion engine starting battery 12VDC.
Battery Chargers:
- 4KW inverter/charger with 100amp battery charger in lieu of standard.
- DC-DC converters in series will charge the forward battery bank.
- Charge master 24–100-amp battery charger. To charge forward battery bank.
Alternators:
- Mastervolt engine alternators for 24VDC house battery, 2 x 110-amp capacity.
- Yanmar 120-amp alternators for 12V for 2 x engine start batteries.
- Engine alternator combiner for charging aft battery.
Shore Power:
- Shore power 120 VAC sufficient to run AC house loads at dock.
- Shore power cable twin 30-amp installation, 50 ft, service with twin cords domestic AC system; Marinco Smart Plugs. One 30-amp service for air cond. One 30 amp for the 120VAC domestic (Charger/inverter and hot water on this circuit).
Other Electrical:
- 2 x Pro Mariner galvanic isolator.
- Solbian 1,700 W solar panel array.
- 2 x Mastervolt Magic DC-DC converter 24-12 with 20 amps (CZONE Network Power) and 2 x Mastervolt Master DC-DC converter 24-12 with 50 amps (electronics and entertainment).
- DC-DC converter 24-12 with 50 amps will run clean enough power for the B&G and electronics.
Plumbing Systems
- Fresh water spigot/hose for washdown in anchor locker.
- Fresh water wash-down in both forward and aft cockpits.
Fresh Water & Water Heating System:
- 2 x Whale fresh water pump at 4 gal/minute flow rate with pressure surge fittings and accumulator tank.
- 1 x Isotherm 13-gallon (50L) hot water heater (1) 120v/750w and engine transfer heating, in port hull.
Watermaker:
- 1 x Spectra Watermaker: Newport 400c System, located in the starboard forward sail locker. 61 litres / 17 gallons per hour.
Bilge Pumps:
- 6 x Whale electric bilge pump system, 3 x in each hull.
- Edson Portable emergency manual bilge pump with suction hoses and mounting plank, handles. Stored in starboard forward sail locker.
Tankage
- Electronic NMEA 2000 gauges for water tank, and fuel tank.
- All flush mounted Composite thru-hull fittings below waterline.
- All plumbing hoses are double clamped below waterline.
Fuel:
- Total capacity of 750 litres.
- 2 x 375L Polyethylene diesel fuel tanks.
- 2 x Fuel tank SS deck fills.
Fresh Water:
- Total capacity of 600 litres.
- 2 x 300L polyurethane water tanks in both hulls.
- Plastic Torlon water tank fill - direct to tank top.
Grey/Blackwater Holding Tanks:
- 2 x Carbon epoxy black water tank, capacity approximately 60-80 litre in midship with gravity feed discharge.
- Deck pump-out ports for removal of black water.
- Deck pump-out ports designed as close to the thru-hull as possible to allow a clean out if clogged.
- Galley grey water discharged directly overboard.
- Shower grey water in the hulls is collected in Whale 8.5l sump tanks.
Navigation Equipment
- B&G ZEUS electronics standard package.
- B&G glass helm touch screen displays 2 x 19" screens at each helm and nav. station 1 x 19" screen to integrate radar/chart overlay/weather routing/yacht systems/autopilot/performance numbers - system integrates with iPod/laptop as remote display and control, with a black bow processor.
- B&G signal and power cable runs from interior helm station forward to mast step for mast rotation sensor.
- 2x B&G ZC2 Zeus remote keypad.
- 2 x B&G Hercules 5000 pilot controller.
- 2 x B&G H5000 pilot computer.
- 1 x Navigo NEP-2 network Expansion port-2.
- 1 x B&G H5000 Hercules performance base pack w/GCD.
- 1 x B&G NAIS-500 Class B AIS system.
- 1 x B&G ZG100 GPS antenna, 10Hz.
- 1 x B&G vertical masthead unit pack.
- 1 x VMHU top bracket.
- 1 x B&G 4G radar broadband system.
- 1 x B&G H5000 analogue expansion module.
- 1 x B&G H5000 3D motion sensor.
- 1 x B&G RC42N rate compass, NMEA2000.
- 2 x B&G DT800 active depth/temp 235kHz transducer.
- 2 x B&G speed transducer flush, plastic, H-series.
- 1 x B&G Wind vane.
- 2 x B&G H-Vision display 10 x 10 mounted on carbon foam box forward of each helm station windshields. 3 x Displays each side.
- 2 x B&G H5000 pilot computer.
- 2 x B&G Hercules 5000 pilot controller.
- 2 x Rudder reference unit, RF300.
- 1 x VHF marine radio - Simrad or equivalent.
- 1 x B&G V90 VHF w/handset & speaker.
- 1 x B&G V90 VHF 2* handset & speaker.
- 1 x B&G NSPL-500 AIS/VHF antenna splitter.
- 1 x Gam, combo VHF/AIS antenna, SS whip.
- Radar Mast: Radar mounted on removable clear coated carbon tube with wire chases. Mounted outboard port side.
- Electronics Mast: Second removable mast and base socket to mirror port side.
Domestic Equipment
Galley:
- Force 10 - 4 burner induction cooktop.
- Large single stainless-steel sink flange mounted on clear carbon countertop with tap.
- 2 x Dometic fridge/ freezer.
- Wine bar Webasto inside cabinet to be removable for racing.
- 1 x Isotemp Ice maker 120V located in the wine bar cabinet also removable for racing. Carbon foam sandwich.
- Watts Premier filtration system for drinking water in galley with separate dispenser at sink.
Heads/Showers:
- Hot and cold pressure shower in starboard transom.
- Planus Arctic electric toilet system and pump installed in carbon toilets.
- Separate stand-up shower compartment with carbon painted doors.
Heating & Ventilation:
- Ocean Air manual blinds for each Lewmar deck hatch.
- 44,000 BTU Dometic marine air conditioning 120 VAC, zoned combination units. 1 x Saloon, 1 x port aft, and 1 x starboard aft.
- Saloon windows tinted toughened glass.
- Topside hull windows, polycarbonate, tinted.
- Battery space ventilation blower for cooling purposes.
- 2 x Manual engine room ventilation blower.
- 5 x 7" Corfam 3 speed gimbal fans: 1 x Nav station, 1 x stateroom each.
Entertainment:
- Fusion Marine Stereo DVD, FM, AM, and Bluetooth inputs.
- 4 x Speakers.
- 2 x Cockpit speakers. Located in lockers.
- 1 x Fusion subwoofer. Located in the aft deck lockers.
Lighting:
- LED courtesy lights in aft cockpit; transom steps; companionways; hull hallways; heads.
- Flush LED warm white spotlights.
- LED pivot overhead warm white lights.
- LED reading Lights at: navigation station; two at each double berth.
- LED navigation lights.
- LED night vision overhead lights at: navigation station; galley.
- Overhead dome lights in engine rooms, transom, and bow locker compartments.
- 2 x Davit lights.
- 4 x Trampoline lights.
- Underwater LED lights around transoms (2 x each side).
Accommodation
Summary of Accommodation:
- All interior furniture is constructed from in-house built cored panels made of ultralight PVC core and thin plywood skins.
- Synthetic liner on hull and Whisper Walls surfaces (in selected areas in cabins and saloon); in lieu of standard.
- All vertical teak joinery surfaces finished in open-grain matte varnish.
- Interior locker doors and drawer faces in teak veneer with open-grain matte varnish.
- Counter top surfaces in cabins clear coat carbon with teak trim.
- Amtico Marine vinyl floors for interior with natural wood look.
- Interior table (constructed): convertible composite table top with carbon clear coat finish and solid flush wood edges.
- Carbon fibre leg sockets top and bottom (not flush).
- Clear coated carbon tall legs for standard table height and clear coated carbon short legs to convert to bunk.
- Galley counters finished in lightweight clear coated carbon.
- Head sinks in clear coated carbon with flat surfaces in carbon. No fiddles or edges.
- Interior seating upholstery in Ultra Leather fabric.
- Exterior in Sunbrella fabric.
Description of layout:
Saloon:
- Teak wood veneers for composite furniture.
- Navigation/communication station on starboard side; with electronics and control panels.
- Carbon stool with cushion top. Round, clear carbon coated.
- Custom Oceanair blinds for the side and forward outboard salon windows, mounted behind custom ceiling mouldings.
- Companionway access to hulls from saloon with removeable steps.
Galley:
- Carbon fibre covered foam panels with teak veneer over the outside.
- Light weight clear carbon coated countertop with edging in lightweight wood with veneer covering.
- Ample storage cabinets below counters, pot and pan drawer under stove.
Four Staterooms:
- 2 x King sized cabins with en-suite heads.
- 2 x Queen sized (approximately) berth in cabins.
- 2 x Clothes and towel hooks in each cabin.
- Storage lockers shelves.
- Port aft stateroom seat.
Workshop:
- In the starboard side hull, a work bench with lockers and lockable opening doors.
- Shelves installed in the lockers with small fiddle rails to stop equipment sliding out when doors are open.
- Below the work bench surface open hand hole shelves installed.
En-suite Heads:
- Head compartment with carbon skin foam core door, painted.
- Carbon vanity with integral light weight carbon oval sinks.
- Custom made lightweight integral vanities in clear coat and foam panels.
- Mirror above sinks, smaller and lighter, in lieu standard mirrors.
- 2 x Hanging hooks in each head. Carbon clothes Rods.
Bow Locker:
- Starboard bow large composite hatch, storage in bow for sails, hoses, fenders etc.
- Port and starboard fore deck sail lockers to mirror each other.
- Composite hatch installed on starboard side.
- Port and starboard fore deck sail lockers mirror each other.
- Sail lockers have carbon ladders in lieu of standard aluminium ladders.
Cockpit
- Gas storage in aft cockpit settee.
- Rail mounted BBQ.
- Storage lockers in aft cockpit settees and aft cockpit dining area.
- Stainless steel folding swim stairs integrated in starboard transom.
- Cockpit dining table: Composite table top with non-skid finish.
- Table converts to racing height and capable of supporting 3 persons standing at the table.
- Carbon fibre sockets top and bottom (not flush).
- Clear coated carbon tall legs for table height and clear coated carbon short legs convert to racing height.
- Cockpit dining table: Clear coated table top with the same dimensions as the racing table to fit on the tall legs.
- Carbon dinghy davits controlled with 2 x reacher winches. Limited to 250 kg per davit.
- Exterior canvas package (sun covers for tables, wheels, winches, windows, and aft cockpit sunshade/awning).
Deck Equipment
Rig:
- Lorima all-carbon rig package.
- 30m ultra-high modulus rotating mast.
- Integral mast jack.
- Hydraulic mast rotation cylinder.
- Carbon ‘fishbone’ boom.
- Carbon mainsheet ram.
- Antal-powered line driver traveller.
- Longeron with hydraulic tack lines.
- Carbolink shrouds.
- Jammers and spinlocks organizers and blocks on cabin top.
- 2 x Harken forward and aft jib tracks with adjustable pinstop cars on coachroof.
- Harken mainsheet track and car on aft beam.
- Double car with titanium connector.
- Reacher and asymmetrical sheet system consists of titanium padeyes (2 x each side) with blocks.
- Harken staysail track, adjustable car, no pin/end stops.
Winches:
- 2 x Harken 990.3 3-speed electric self-tailing 24V winches with toe controls for all lines in forward cockpit.
- 2 x Harken 990.3 3-speed electric self-tailing 24V winches with toe switch controls for all lines at helm stations.
- 2 x Harken 990.3 3-speed electric self-tailing 24V winches with toe controls for all lines on aft beam.
- 2 x Harken 990.3 3-speed electric self-tailing 24V winches with toe controls for all lines mounted on structural members in aft cockpit.
- 6 x Winch kill switches supplied for each winch + master kill switch at helms; 1 x forward cockpit and 1 x transom.
Sails:
- Mainsail - North 3Di Endurance 780 (2020) - NB this sail has been cut down to second reef.
- J0 - North 3Di Downwind 700 (2020).
- J2 - North 3Di Raw 780 (2020).
- J3 - North 3Di Endurance 780 (2020).
- J3 - North 3Di Endurance (2025).
- J4 - North 3Di Endurance 780 (2020).
- A3 - North Helix 3Di Downwind 700 (2020).
- A4 - Asym Maxicoat with deck snuffer (2020)
- Staysail - North High Visibility 10 oz. (2020).
General:
- Composite pushpit and stanchions (1m) with three levels of Spectra lifelines.
- Lewmar flush deck hatches with bug and privacy screens.
- 3 x CE certified escape hatches under companionway stairs.
- 2 x Flag pole/fishing rod holder.
- Large watertight, stowage lockers outboard of mast in wing deck.
- Large watertight lockers on side of centreline forward of mast.
Anchoring & Mooring Equipment:
- Dock lines with chafe protected titanium padeyes.
- Inflatable fenders with covers.
- 40m of 12mm SS chain with 40m of nylon rode
- Anchor bridle titanium padeyes on inboard hull sides forward with backing plates.
- Electric windlass, Lewmar V5 24 VDC, inside forward underwing locker.
- Rocna Anchor 55 kg mounted.
- Foldable Fortress anchor 21kg with bag. Stored in sail locker.
Tender & Outboard:
- Davits.
- 2021 14’ Highfield centre console with Yamaha 40hp.
Safety Equipment
- Forward trampolines, for maximum safety.
- Titanium folding pad eyes forward and aft for jacklines located on the underwing.
Fire-Fighting Equipment:
- 2 x Seafire engineered extinguishers systems, one in each engine room space.
- Sized to match volume of each area.
- 7 x Portable Fire Extinguishers. Located per CE regulations: 3 x cabins, 1 x cabin/workshop, 1 x galley, 2 x aft cockpit/helm station.
Disclaimer
The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. 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.
Propulsion
Engine 1
Engine Make:Yanmar
Engine Model:4JH80
Total Power:80hp
Engine Type:Inboard
Fuel Type:Diesel
Engine 2
Engine Make:Yanmar
Engine Model:4JH80
Total Power:80hp
Engine Type:Inboard
Fuel Type:Diesel
Specifications
Dimensions
Length Overall:65.92ft
Max Draft:13.75ft
Min Draft:6.92ft
Beam:28.58ft
Length at Waterline:65ft
Miscellaneous
Hull Material:Composite
Tanks
Fresh Water Tank:158.5 gal
Fuel Tank:198.13 gal
Holding Tank:
Accommodations
Guest Cabins:4
Guest Heads:4