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The MC38 raises high performance one design yacht racing to a new level. Designed by four-time America’s Cup designer Harry Dunning,


The MC38 delivers high performance racing in a One Design Class. Designed for international, inter-state or inter-club racing, the MC38 has a removable Carbon keel-fin for ease of transport.


McConaghy build and finish quality ensure strong, fast and identical boats for maximum racing, without the need for maximum crew.


MC38 Gallery


Americas cup acclaimed Harry Dunning partnered with McConaghy Boats to design and build the latest state of the art one design grand prix racer. The engineering has been done right and light with its systems properly integrated into the boat.


The hull, as we'd expect of a 3,200kg 38-footer, is of carbon/E-glass, and CoreCell composite. The custom-quality build McConaghy is known for is visible both inside and on deck. 


Strict One Design Class – No arms race

Class Association managed - Owner controlled for longevity of the class

Universal racing - Mixed Fleet, regatta, club and twilight racer.

Carbon boat with E glass & foam core

Carbon mast and boom

Autoclaved carbon foils – including Carbon keel fin

Autoclaved carbon bowpole

Designed by Americas’ Cup designer Harry Dunning (mascalzone latino)

Engineered by Americas’ Cup engineers SDK (Alinghi)

Mast design by Americas’ Cup mast engineer Feddersen design (Alinghi)

PBO Composite rigging

CNC Female tooling with elevated temperature post-curing

McConaghy Carbon Tiller Steering or Dual Carbon Steering Wheel Option

Harken deck hardware as standard

Specifically designed for ease of road transport


The MC38. From masthead to keel-tip: all Carbon – all performance.







Designed Crew Weight


ISO Structural


Carbon Fibre & EGlass, core cell foam cored, resin infused expoxy Vinylester Construction


Autoclaved prepreg carbon Keel fin with lead bulb


Autoclaved prepreg carbon rudder and stock


Has been designed and will be built in accordance with the requirements of ISO 12215 Category A per ISAF Offshore Special Regulations, Section 3.03.1 a)



Base Boat Ex Factory







Cat A




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All information provided is correct at time of publication. McConaghy reserves the right to make changes without notice, all images are illustrative only, boat options, details and pricing can only be confirmed in a written sales agreement with McConaghy. © 2020 McConaghy