McConaghy MC55 | 2024

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  • Make McConaghy
  • Model MC55
  • Year 2024
  • LOA 55ft/17m
  • Class Multihull
  • Hull Foam Core Epoxy
  • Keel Multi-Hull
  • Rig Sloop
  • Engine Twin Diesel
  • Drive Sail Drive
  • Layout Deck Saloon/Pilothouse
  • Berths 8
  • Cabins 4
  • Aft Cabins 2
  • Ancasta Ref 36403


The MC55 might be the smallest multihull in the McConaghy range, but this cat is no kitten.
Designed to be sailed and cruised by couples and families alike, the MC55 offers a hugely safe, spacious and comfortable platform that is incredibly easy to handle thanks to her clever layout and the technology installed.

The MC55 not only benefits from McConaghy’s vast experience building performance boats, but also from the carefully considered use of carbon, that sees her precise hull forms achieve an optimum strength to weight ratio. As with all McConaghy Multihulls, the MC55 has dual helm positions on the flybridge, allowing for the greatest sight lines forward, as well as an elevated position that aids in-port manoeuvres – making her an ideal choice for those new to multihull cruising.

With several MC55's in build , this boat really should be a top consideration if performance cruising is on your calendar in 2023 and beyond.





BUILDER: McConaghy Boat Company
DESIGNER: Ker Design
Build Year 2024
CE Category A

Composite engineering approved by Bureau Veritas
Controlled vacuum infusion process with pressed panels of E-glass, carbon and Corecell foam core for lightweight strength and stiffness
Hull in grey gelcoat
Deck in off white
Coachroof in white
(other colours and paint options available)
Non-skid standard with Flexiteek and Natural teak sole finish options offered
Carbon longeron with integrated anchoring system
Twin balanced spade rudders
Hydraulic Tender lift/Swim platform

LOA 16.7m - 55'
BEAM 8.24m - 27'
DRAFT WITH CENTERBOARDS 1.35 - 3.75m 4'-4" to 12'-4" (Three pre-set positions)

All figures are approximate


Carbon Fibre mast & Park Avenue boom
Standing rigging
Furlers for headsails- Jib, Code sail

HEADSAIL (Options)
Self tacking jib
Code 0
A sail

Harken 60.3 STEA 24v Electric Radial x 3

Harken MKIV Unit 3

Harken electric line feed


The MC55 features seamless inside/outside living. Open the full width saloon doors and the aft deck and saloon are connected, open the expansive saloon side windows and the breeze, warmth and salt air flow throughout the saloon. Open the forward door step into the forward cockpit and allow the breeze to flow through your living area.

The galley is to port, the large central island is the centre of the living space, the settees are to starboard and the aft cockpit and stairs to the flybridge are just steps away. Spacious and comfortable this area is similar to what you would find on a 30 meter yacht.
The flybridge is just a few steps up above. With twin helms, sail controls and generous aft sofa bench the flybridge keeps all the sail handling out of the way of the living spaces and provides the perfect perch for a sundowner in a lovely anchorage.

The Hydraulic Swim Platform and tenderlift with remote control, Seasmart cleats, safety locks and padeyes, is the sublime connection between the deck and the sea.

You can have the symmetrical four cabin arrangement with two cabins in each hull, or the three cabin arrangement with the Master cabin suite in the starboard hull with two cabins in the port hull.
Each cabin has; large hull windows, wardrobe, drawers, opening deck hatches, an ensuite including vanity sink, separate shower and fresh water electric flush toilet.
Aft cabins can be either twin berths with an insert or a double berth. Midship cabins have lateral double berth, with storage below

Interior themes from m2 Atelier


Yanmar 57HP x 2
Sail Drive


Your choice of either Raymarine or B&G

Raymarine option includes:
2 - Axiom 16 Pro-S Hybrid Touch 16" Multi-Function Display with integrated High CHIRP Conical Sonar for CPT-S displays at Helm stations
1- Axion 12 Pro-S Hybrid Touch 12" Multi-Function Display with integrated High CHIRP Conical Sonar for CPT-S displays at nav station
2- i70 Displays for wind, speed & depth
Autopilot Evolution with 1 P70s control head & ACU-400
AIS 700 Class B Transceiver + active AIS Splitter 11
Radar 4kW 18" HD Color Radome with Raynet Connector
VHF Ray260 fixed mount with remote mic. passive speaker and 1.2m antenna

B&G option includes:
2- Zeus 16" plotters x 2 at helm stations
1- Zeus 12" plotter at Navigation station
2- Triton Displays for wind, speed & depth
Autopilot - Precision-9 compass, WR10 remote control + one H5000 controller & RF300 feed back unit
NAIS-400S system with NSPL-400 VHF splitter
ZG100 GPS Antenna
4G - Zeus Radar Scanner
ZG100 GPS Antenna
VHF H90 handset with speaker and VA S/S whip


Twin stainless steel sinks
Mixer tap
Corian countertops
Gas oven and cooktop
Isothern 160L drawer refrigerator
Isotherm 160L drawer freezer
Storage under bench tops, cupboards with soft close drawers
Built-in garbage bin

Pressurised Hot & Cold domestic water
Isotherm 40L water heaters x 2
Freshwater tanks
Black water tanks
Grey water sumps
Tank sensors & monitors
Automatic and manual bilge pumps
Deck wash salt/fresh outlets on foredeck and aftdeck

24 VDC Power Supply
4- (Four) 24V/180A Mastervolt Lithium ion batteries
2 - Alpha Pro alternators
Two 55Ah main engine start batteries

AC Power Supply
Blue Sea AC Switch board
1 set of 32A 230V shore power, 15mm European plug
1 - Mass Combi Pro 24/3500 - 100 combi inverter
12 - AC sockets

Interior down lights
Reading lights at all berths
Courtesy lights
Cockpit lights on flybridge
Navigation lights

Carbon fibre McConaghy steering wheels x 2 (your choice of style)
Hydraulic steering
Emergency tiller
Stainless steel stanchions & lifelines
Lewmar 2G hatches
Clear carbon recessed coachroof handrails
Clear carbon stairs and handrails to flybridge
Overhead rain shower on port aft deck
Swim ladder
Water and Fuel fillers, Deck pump out connections
Foredeck trampoline in either grey, black or white

Lewmar CPX4 Electric windlass
40kg galvanized anchor
80m galvanized chain with 30m warp
Six fixed mooring cleats
Two stern cleats for Med mooring

Broker Comments

McConaghy delivers another fast, comfortable, spacious cruising catamaran with the new MC55. The extensive list of options allow you to customize this catamaran to fit your cruising intention and fulfil your desire for an exceptional catamaran. The Ancasta team looks forward to working with you to build your cat with the world class McConaghy Boats.

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Purchase Information

Ancasta are acting as brokers for the vendor who is not selling in the course of business unless otherwise stated. These details are prepared from information provided by the vendor and are intended only as a guide to give a fair description of the vessel but their accuracy cannot be guaranteed and they do not constitute part of any contract.

A prospective buyer is strongly advised to check the particulars and to have the vessel fully surveyed by a qualified marine surveyor. Details are supplied on the understanding that all negotiations shall be through Ancasta brokerages. This vessel is offered subject to prior sale, price change or withdrawal without notice. Please Note: where the vessel’s status shows as “Preliminary”, details of the vessel have not yet been confirmed by the Vendor.

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