Taking multihull luxury to new levels


This range has been designed using a group of experienced owners and sailors (who between them have spent decades sailing and cruising multihulls), a highly experienced design and engineering team, and McConaghy’s 50 years of building yachts for the most demanding customers and conditions.

MC77 is going through a design change to have a forward cockpit.

MC70CAT 01
MC70CAT 02
MC70CAT 04
MC70CAT 03
MC70CAT 06
MC70CAT 08
MC70CAT 07
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3 Cabin Layout

Cabin Layout

Saloon Layout


Sofa Colour
Boot Stripe
Pilot House

Flybridge Layout


1.2m to 5.1m

Ker Yacht Design

Design Unlimited

2 x 160hp





Length Overall
Length Waterline
Height of Mast

Upwind Sail Area
Interior Headroom 

Naval Architect

Interior Designer 


E-glass/epoxy/foam sandwich with carbon fibre structural elements


Standard Power  

Fuel Tanks Capacity

Fresh Water Capacity

Harken Deck Gear


Base Boat Ex Factory

The MC77 stands uniquely apart from the rest of the McConaghy Multihull range.  Whilst remaining true to this product range’s identifiable exterior lines and key performance attributes, we treat it as a full-custom yacht in our approach to its build.  This allows owners to set out the interior’s general arrangement in a way that is unique to their own requirements, and allows for the addition of multiple bespoke options.


The MC77’s standard mechanical package is significantly more advanced than that of her smaller sisters, and includes a powerful bow thruster to ensure the ease of manoeuvre synonymous with the other models in the range.  Powerful yet manageable, the MC77 will be exhilarating to sail with impressive capabilities for spending long periods at sea and offer an efficiency far superior to other comparable multihulls.


Perhaps most notable of the MC77’s optional features, is the side-opening balcony from the owner’s suite.  This fold-down hull door creates a beach club for private use by the owner, ideal for sun bathing and swimming, or for access to the tender direct from the owner’s quarters.


With the interior volume increased again, the MC77 is able to offer a three, four or even five cabin layout, all en suite, as well as separate quarters for a live-aboard crew.  The wide saloon with open-plan galley has been retained, offering a versatile and spacious living area, and full-height retractable glass doors connect this space to the aft deck where there is plenty of space for free-standing lounge furniture.


The MC77’s flybridge has also benefitted from an increase in space, with this enormous area now offering a desirable entertaining and dining area which is safe for guest enjoyment even whilst underway.  The dual helm stations are at the front of this elevated sailing position allows for clear sightlines forward.


Interior styling comes from Design Unlimited, an award-winning studio with extensive experience in both full-custom superyachts and production models.  Their attention to detail and innovative space solutions allow living areas to be maximised, and a client will be guided through an array of interior styling options to create an interior schematic that is in accordance with their own specific tastes and requirements.