2023 McConaghy MC75, GBP 5 000 000

Simply stunning, recently-launched and comprehensively equipped carbon composite luxury performance cruising catamaran from Ker Yacht Design and McConaghy Boats

FURTHER BROKER’S COMMENTS:

JACK is a luxury performance cruising catamaran built with a clear emphasis on lightness, efficiency and comfort. Constructed entirely in carbon composite by McConaghy Boats, she benefits from a low displacement that translates directly into responsive handling, reliable speed and reduced energy consumption underway.

Her sailing capability is well established, winning line honours and the Multihull Class in the 2024 ARC Transatlantic, completing the 3,135-nautical-mile passage from Gran Canaria to Saint Lucia with consistency and ease. She performs comfortably across a wide range of wind strengths and conditions, remaining effective in light airs while offering impressive pace without compromising comfort under deck.

The design places equal importance on environment and function. Extensive glazing, fully retractable side windows and a level, open-plan layout create a strong visual connection with the sea and allow natural light to define the minimalistic interior. The result is a calm, stylish living space that feels considered and modern.

On deck, the flybridge and deck spaces are arranged for relaxed use both underway and at anchor, with multiple seating and lounging areas. The yacht is well equipped for an active cruising program, carrying a broad selection of tenders, water activity equipment, supporting extended time aboard for family and guests.

Her specification highlights include:-
Interior styling by m2 Atelier with five double ensuite cabins, each with outboard facing double berth, plus further ensuite twin crew bunk cabin. Crew accommodation for up to 4 when utilising forward port double ensuite cabin for crew
Carbon composite construction with E-glass/epoxy/foam sandwich and structural carbon reinforcements
Topsides finish in Oyster White
Hydraulic-actuated centreboards with three positions: retracted 1.68m, mid 2.46m, fully deployed 4.5m
Twin helm pedestals on flybridge with carbon fibre helm wheels
Hall Spars carbon fibre mast and boom with composite and rod standing rigging
Cyclops Marine load cell pins on shrouds
Reckmann hydraulic genoa, staysail and Code 0 furlers
Harken 3-speed hydraulic winch package
Doyle Sails Stratis sail package with square-top mainsail
Twin Yanmar 4LV150 150hp engines with shaft drive and Brunton 4-bladed propellers
2x Integral 9Kw Generators mounted on main engines for fast charging
Lewmar 300VRTTH retractable hydraulic bowthruster
48vDC and primary domestic systems
CZone DC Digital Switching System
Mastervolt MLI Ultra Lithium Ion service battery bank
Mastervolt battery chargers and Victron inverters
Integral E-Power engine-mounted DC generators each producing 9kw @ 48vDC
Cummins Onan 27kw 220vAC 50Hz diesel generator
Soliban treadable solar panels with approx. 3.2kw total combined output
Gianneschi dual voltage pressurised fresh water system
Spectra Newport 700 220vAC reverse-osmosis watermaker
Sanisplit macerator and waste water control system
Approx 3,000 litres fuel capacity and 3,200 litres fresh water capacity
B&G instrument package with Zeus3S glass helm plotter displays, Halo20+ radar, Sonar hub module with Forward scan transducer, H5000 autopilot system and AIS transponder
Iridium C700 Certus terminal
Starlink satellite communications antenna
FLIR M232 IP thermal imaging camera
Electric split (crew and guest area) galleys with induction cook top, oven and microwave, dishwasher, multiple fridges and freezers, ice maker and wine fridge
Laundry with Siemens washer/dryer
Tecma 24vDC fresh water flush electric heads
Termodinamica 220vAC reverse-cycle air-conditioning and heating system with 215,000 BTU total combined output
49" Sony Bravia TV recessed in dining table Fusion Apollo Digital receiver with speakers in saloon, flybridge, aft deck and foredeck areas
Carbon fibre davits with hydraulic lift
Harken CLR 1200 pop-up electric mooring winches
Highfield CL460 4.6m aluminium RIB tender with Yamaha 70hp 4-stroke outboard
Extensive watertoys inventory
Dive compressor and diving equipment
Full safety equipment package

Available now and ready for use without the lead time of a new build, JACK is ready for an owner who values sailing quality and elegance and represents a compelling and immediately available option among 75-foot performance multihull catamarans

MANUFACTURER’S COMMENTS:

“The MC75 is lightweight, eco-friendly and, as with all models in the McConaghy Multihull range, fully customisable.

The progressive design features an appealing flybridge that can be ranged forward in a more aggressive styling or extended aft for a sweeping, sleeker look.

Performing with an effortless grace even in light airs, the MC75 provides smooth sailing prowess with stability and enviable speed. In 20kts of wind at 110 true wind angle, the MC75 is predicted to reach 21kts of boat speed with a code zero sail.

The interior of the MC75 has a particularly apartment-like feel with an architectural personality. The sophisticated environment offers a fantastic visual connection with the sea and great care has been taken to incorporate all interior essentials and amenities in the most aesthetic and functional way possible.
Fully retractable windows and floor-to-ceiling glass create the perception of freedom, with an infinite amount of visual space and an enhanced, symbiotic relationship between inside and out. Within, internal volume has been maximised and every space configured with distinct purpose in a layout that dispels all preconceptions of yacht interiors.

The open-plan interior can be tailor-made, with bespoke pieces that meet the client’s request for convenience and versatility as well as designer aesthetic.

The MC75 features a huge saloon lounge with a dining area and walk-around bar, a spacious aft deck with sofas and al fresco dining space, and cushioned sun pads forward of the superstructure. There are five seaward-facing berths, all en suite, as well as a crew cabin – adjacent to the galley in the port hull.”


SPECIFICATIONS
CONSTRUCTION

Certification:
Our understanding is that the vessel complies with the European Union’s Recreational Craft Directive and is Certified CE Category A - Unlimited Offshore
Composite engineering approved by Bureau Veritas

Hull, Deck & Superstructure Construction:
Carbon composite construction with E-glass/epoxy/foam sandwich and structural carbon reinforcements
Controlled vacuum infusion and pressed panels for lightweight strength and stiffness
Carbon longeron with integrated anchor system
Topsides finish in Oyster White polyurethane paint
Epoxy primer below waterline with Coppercoat antifoul

Deck & Superstructure Construction:
Carbon composite construction with E-glass/epoxy/foam sandwich and structural carbon reinforcements
Controlled vacuum infusion and pressed panels for lightweight strength and stiffness
Moulded non-slip finish to side decks
Superstructure finish in Oyster White polyurethane paint
Teak laid cockpit, flybridge and bathing platforms

Keel & Rudders:
Hydraulic-actuated centreboards with three positions: retracted 1.68m, mid 2.46m, fully deployed 4.5m
Twin balanced rudders

MACHINERY:

Engines:
2x Yanmar 4LV150 4-cylinder, direct-injection, common rail, turbocharged and intercooled diesel engines producing 150hp (110kw) each @ 3,500rpm
Fresh water engine cooling via raw water intakes and heat exchangers
Kankzaki KMH50V-3 V-drive gearboxes
Racor fuel/water separators
Delta T Ventilation System in engine spaces
Electronic throttles mounted at starboard & port helms
Engine panel at helm stations

Maintenance & Performance:
Engine hours: approximately 1,100 hours as of January 2026
Engine serviced annually – last service June 2025
Maximum speed: Approx 13 knots
Cruising speed: Approx 10 knots @ 2,500rpm

Propulsion & Steering:
Stainless steel shafts with flexible couplings
Brunton 4-bladed folding propellers
Rope cutters on shafts
Lewmar 300VRTTH retractable hydraulic bowthruster
Twin helm pedestals with carbon fibre helm wheels and hydraulic steering
Emergency steering

Hydraulics:
Single DC pump and PTO pump for centreboards, windlass, bowthruster, winches, headsail furlers and tender davits

ELECTRICAL SYSTEMS

Voltage systems:
48vDC and primary domestic systems with 220vAC via generator, inverter or shorepower
Mastervolt MacPlus DC-DC converter
DC switching system

Digital Switching and Systems Monitoring:
Czone & MasterBus Network
CZone DC Digital Switching System, ipad compatible with 10" Czone display and W11 solid state computer at Navigation station with B&G plotter integration and monitoring voltage, tank, bilge and fuse alarms, lighting (switches and dimmers)

Battery Banks:
10x Mastervolt MLI Ultra 24/5500 Lithium Ion service batteries joined in parallel and series to supply approx. 1,000Ah / 27.5kwh @ 48vDC
2x Mastervolt 12vDC 130Ah AGM navigation batteries
2x Mastervolt 12vDC 130Ah AGM batteries for engines starting – 2024
1x Mastervolt 12vDC 130Ah AGM battery for generator starting – 2024
Parallel switch for engine and generator battery banks
Emergency 12vDC navigation battery bank

Battery Charger/Inverter:
4x Mastervolt MASS 48/50 50Amp 48vDC automatic battery chargers
Mastervolt Easy Charger battery chargers for engine and generator battery banks
2x Victron Mass Combi Ultra 48/3500-50 50Amp 48vDC automatic battery chargers with integrated 3,500w inverters

AC Generator:
Cummins Onan 27kw 220vAC 50Hz diesel generator
Generator hours: approx. 1050 as of January 2026
Generator last service: June 2025

DC Generators:
2 x Integral E-Power engine-mounted DC generators each producing 9kw @ 48vDC

Alternators:
2x 12vDC 130Amp engine-mounted alternators

Solar:
Soliban treadable solar panels on coach roof and foredeck, plus bifacial panel on tender davits with approx. 3.2kw total combined output
2 x Mastervolt 60Amp MPPT charge controller
2 x Victron Mppts solar charge controller

Shorepower:
220vAC 50Hz shore power system
Ring-main with 220vAC sockets throughout yacht
110vAC/220vAC 100Amp automatic isolation transformer

Domestic Power Sockets:
Multi sockets and USB A & C throughout.
12V sockets at helm, aft deck and in dinghy

PLUMBING & GAS SYSTEMS

Fresh Water:
Gianneschi dual voltage pressurised fresh water system with 48vDC and high pressure pumps
Freshwater pressurised dock inlet
Hot water supplied via engine cooling with calorifier or via 220vAC immersion heater element from shore power in 2x 75 litre capacity well-insulated hot water tanks
Hot & cold pressurised water to galley, heads and shower in cockpit

Watermaker:
Spectra Newport 700 220vAC reverse-osmosis watermaker producing 110 litres per hour

Bilge Pumps:
2x Rule 3700 (220 LPM) bilge pumps( 1 auto-connected to float level switch to start/stop automatically, 1 manual standby)
High-level alarm switches installed for each of the bilge spaces
Engine sump bilge connected to filter in each E/R
2x Henderson Mk5 universal manual bilge pumps

Black & Grey Water:
Black water discharge directly into a black water tanks
Grey water discharges directly into a grey water tanks
Sanisplit Model 600 macerator and waste water control system with Groco electric remote seacocks for black and grey water discharge

TANKAGE

Fuel:
Approx 3,000 litres fuel capacity in 2x primary tanks plus day tank
C-Zone digital tank level monitoring via DC switching system
Deck fillers
Fuel transfer system including fuel polisher

Fresh Water:
Approx 3,200 litres fresh water capacity in 2x tanks
C-Zone digital tank level monitoring via DC switching system
Deck filler

Holding tanks:
2x 250 litres black water holding tanks discharging via deck extraction
2x 250 litres grey water holding tanks discharging via deck extraction

NAVIGATION & COMMUNICATION EQUIPMENT

flybridge Helms:
2x B&G Zeus3S 16” colour glass helm GPS chart plotter and radar displays with ZC2 remote keypads
B&G Halo 20+ closed-array radar scanner
2x B&G Triton2 multi-displays
B&G WS370 wind transducer
Arimar speed and depth transducers
Forward Scan and Xsonic speed/temp transducers
B&G ZG100 GPS antenna
B&G H5000 autopilot system 2x H5000 control heads, WR10 Autopilot Remote, RF300 rudder feedback, Precision 9 compass
Additional autopilot control via Zeus MFD and iPhone app
2x Steering compasses

Internal Helm:
B&G Zeus3S 16” colour glass helm GPS chart plotter and radar display
B&G autopilot control keypad

Communications Equipment:
B&G V100B VHF with DSC with 3x handsets
NAIS-400S Class-B AIS system with NSPL- 400 VHF antenna splitter
3 x wired B&G VHF handsets
Iridium C700 Certus terminal,
Starlink satellite communications antenna
Pepwave WiFi mesh
5G router and antenna

Exterior Cameras:
FLIR M232 IP thermal imaging camera on spreader

DOMESTIC EQUIPMENT:

Galley:
Bora S Pure 220vAC induction cook top with integrated extractor
Bosch 220vAC oven
Bosch 800w microwave oven
2x Isotherm stainless steel twin drawer fridge/freezers
Isotherm 220vAC icemaker
Isotherm Divino 23l capacity wine fridge
Twin galley sinks with hot & cold pressurised fresh water supply via Quooker boiling tap
Siemens 220vAC 12-setting dishwasher
Obleis OB100 trash compactor
Nespresso Gran Lattissima EN650 Coffee machine

Laundry:
Siemens 220vAC 9kgs washer/dryer

Heads:
Tecma 24vDC fresh water flush electric heads
Hot & cold pressurised showers in all bathrooms with electric drain pumps

HVAC:
Termodinamica 220vAC reverse-cycle air-conditioning and heating system with 30,000 BTU output in each accommodation cabin plus 35,000 BTU output in saloon area (215,000 BTU total combined output).
Stand-alone Dometic air conditioning for electrical (batteries and inverters) space with forced air fan and temperature alarm

Entertainment
49" Sony Bravia TV recessed in dining table
Fusion Apollo Digital receiver with speakers in saloon, flybridge, aft deck and foredeck areas

Interior Lighting:
LED interior lighting package throughout including courtesy lighting

ACCOMODATION


Summary of Accommodation:
Interior styling by m2 Atelier
Five double ensuite cabins, each with outboard facing double berth, plus further ensuite twin crew bunk cabin. Crew accommodation for up to 4 when utilising forward port double ensuite cabin for crew.
Split galley with cooktop and ovens, ice machine and wine cooler on the main deck with a crew galley/pantry in the port hull containing, sinks, refrigerators, freezers and preparation surfaces.

Accommodation Finishes:
All interior woodwork in European oak with a two component satin varnish.
Exposed hull sides finished in soft furnished panelling
Oak floors
Corian counters
Carbon fibre breakfast bar
Vinyl padded headlinings
Grey and coral red luxury cloth upholstery
All cabins have overhead and floor level recessed courtesy lights and reading lamps
All beds can be split into two singles by a central divider
Blinds and screens pack (all side windows and overhead hatches, excluding forward facing windows in saloon. Saloon door curtains). Includes mosquito netting for all opening hatches.
Linens and towels provided for full complement of guests (2 complete sets)
Table covers for saloon dining and saloon coffee in Sunbrella canvas

Accommodation Layout:

Port Guest/Crew Hull:
Forward accommodation area accessed via stairs from main saloon area.
Double guest/crew cabin with outboard facing double berth
Ensuite bathroom with electric heads, sink and separate shower compartment
Crew galley area
Crew cabin with twin bunks
Crew bathroom with electric heads, sink and separate shower compartment
Double guest cabin aft accessed via dedicated stairs from aft cockpit area with outboard facing double berth
Ensuite bathroom with electric heads, sink and separate shower compartment

Starboard Owner’s/Guest Hull:
Forward accommodation area accessed via stairs from main saloon area.
Double guest cabin with outboard facing double berth
Ensuite bathroom with electric heads, sink and separate shower compartment
Owner’s double cabin with outboard facing double berth, office desk and walk-in wardrobe
Ensuite bathroom with electric heads, twin sinks and separate shower compartment
Double guest cabin aft accessed via dedicated stairs from aft cockpit area with outboard facing double berth
Ensuite bathroom with electric heads, sink and separate shower compartment

Main Deck Level:
Sliding door access to aft cockpit area
MaIn saloon area aft to starboard with u-shaped seating and drinks table
Dining area opposite to port with bench settee, large dining table and 6 separate dining chairs
Guest galley forward to port
Breakfast bar area across centreline with bar stools
Navigation area to starboard with outboard facing chart table
Door access to forward sunbed area

DECK EQUIPMENT


Rig:
Hall Spars carbon fibre mast and boom
Spars are constructed in hybrid of standard modulus and high modulus prepreg carbon infused with epoxy and post cured to 120°C at 6 bar.
Single set of swept-back spreaders
Boom racks for easy mainsail flaking
Composite and rod standing rigging with Aramid cap shrouds and lowers, stainless steel rod forestay, inner forestay and superior diamonds
Cyclops Marine load cell pins on shrouds
Reckmann Hydraulic Forestay furler - 2025
Reckmann Hydraulic Staysail furler - 2025
Reckmann Hydraulic Code 0 furler - 2025
Adjustable sheeting cars for genoa and staysail
Sydney Rigging Dyneema cored running rigging
2:1 halyards for mainsail, genoa, staysail and storm jib
I – 27.40m, J= 7.90m, P= 27.40, E= 8.89m
Mast Height above DWL - approx. 30 metres
SS 2m flagpole on masthead with Sertec lightening repelling unit

Winches:
3x Harken 70.3 STHP Performa hydraulic 3-speed self-tailing primary and control line winches centrally located on flybridge
2x Harken 80.3 STHP Performa hydraulic 3-speed self-tailing gennaker winches to aft of flybridge
2x Harken 60.3 STHP Performa hydraulic 3-speed self-tailing mainsheet and traveller winches adjacent to helm positrons

Sails:
Doyle Sails Stratis 1100 CT titanium grey 192.01sqm square top fully-battened mainsail with 3-reefs and carbon battens
Doyle Sails Stratis 1100 CT titanium grey 140sqm furling genoa with vertical battens and UV protection
Doyle Sails Stratis 1100 CT titanium grey 71sqm furling staysail with vertical battens and UV protection
Doyle Sails Stratis 1100 CT titanium grey 35sqm storm jib
Doyle Sails 387sqm furling A3 with carbon luff

General:
Flybridge with seating and teak table
Spacious aft cockpit with sofas and al fresco dining space
Cockpit fridge
Trampoline and forward cockpit with bimini and cushioned rebated seating area reached from the saloon via watertight double door
Black carbon fibre guardwire stanchions with triple guardwires and side boarding gates
Carbon fibre padded helm seats
Carbon fibre davits with hydraulic lift
Boarding ladder rebated in aft deck with carbon dive ladder
3x Deck showers including fixed rain forest shower head
Custom carbon passerelle and boarding stairs

Exterior Lighting:
In-boom lights
Deckhead lighting
Courtesy lighting in steps to aft cockpit and bathing platfom
Underwater LED lighting

Covers, Cushions & Canvas:
Mainsail cover
Grey Sunbrella upholstery to flybridge, aft cockpit and forward cockpit areas
Forward bimini/awning with removable carbon poles
Table covers for flybridge table and aft deck table in Sunbrella canvas

Anchoring & Mooring:
Lewmar V6 24vDC reversing electric anchor windlass with remote control and chain counter
100kgs Ultra anchor with 100m of 14mm chain
4x Harken CLR 1200 pop-up electric mooring winches
Nomen mooring cleats
Warps and Fendertex fenders

Tender & Outboard:
Highfield CL460 4.6m aluminium RIB tender with A-frame for waterskiing
Yamaha 70hp 4-stroke outboard engine

Water Toys & Land Toys:
Epic Surfski V6 kayak
Waterskis, wakeboard, donut
2x Paddleboards
Fliteboard
Beach Smartkat, an inflatable fast two person sailing cat
2 Stromer electric bikes (45kph)
2 folding bikes

Diving Equipment:
Bauer PE100T diving compressor
6x Beuchat Master Lift vests, MK11/C370 Regulator, RO95 Octo
6x Suunto Cobra 3 dive computers
6x Scubapro Sport 3 mm wetsuit
6x Tusa Splendive mask & snorkle set
6x Scubapro Jet Club full foot fins
6x 11.1L aluminium dive cylinders

SAFETY EQUIPMENT:

General note on safety equipment: Any safety equipment such as liferafts, Epirbs, fire extinguishers and flares etc. are usually personal to the current owner(s) and if being left on-board as part of the sale of a used vessel may require routine servicing, replacement, or changing to meet a new owners specific needs.

Navigation Lights:
LED navigation lights

Life-Saving:
2x Viking Solas B life rafts in hard cases mounted on weather decks port and starboard
2x Ocean Signal 406Mhz EPIRBs
SART
Ocean Safety Offshore First Aid Kit (MCA cat 2 compliant)
14x Spinlock Solas Duro+ with light, sprayhoods lifejackets
Flare pack to cat 2 standard
2x Jonbouys
1x Rescue sling
2x Horseshoe buoys (with light, whistle, drogues)
2x 80 m throw lines
Jacklines in all deck areas and flybridge

Fire-Control:
2x seafire engine bay automatic fire suppression system
8x 1kg dry powder fire extinguisher
2x 5kg powder fire extinguisher in Saloon
1x fire blanket.


VIEWING ARRANGEMENTS
Lying: Canet-en-Roussillon, France

Available to view strictly by appointment

Office Hours Mon- Fri 0900 – 17.00
Saturday by prior appointment

For more information or to arrange a viewing please contact us.

Please Note: Due to the varying locations of our yachts, your travel time and the distances that may be involved, we recommend that you only make arrangements to view if you are actively considering purchase.

Lead Broker: Jonas Renlund – Grabau International (Scandinavia)
Tel: +358 40 8098688
Email: #####@grabauinternational.com