The International Moth is a high-speed, development sailing class with 90 years of continuous innovation.
The modern day carbon fibre boats reach speeds of over 30 knots on hydrofoils.
With the available training newcomers are becoming competitive in a short period.

Class Events

2019 Fixtures

9/10th March –GP – Queen Mary Sailing Club
23/24th March – GP– Parkstone Yacht Club
13/14th April – GP– Grafham Water Sailing Club
29th May – 2nd June – Europeans – Lagos, Portugal
11-14th July – Foiling Week– Lake Garda, Italy
20/21st July – GP– Stokes Bay Sailing Club
12-15th September – UK Nationals– Castle Cove
4-6th October – UK Inlands/Scottish Nats– Loch Lomond
8-18th December –Worlds – Perth, Australia

There is no better way to improve your skills than attending the events so Join the Class and come along!

UK Moth Worlds 2020

IMCA UK & The Weymouth and Portland National Sailing Academy
are excited to hold the 2020 International Moth Class World Championship
at WPNSA – The 2012 Olympic Sailing Venue
3rd-12th September 2020

Much more information to come




The UK Committee are all highly enthusiastic volunteers with a deep love for the Moth who ensure you get the most from every event.
We are currently a little short on personnel, if you would like to play a part then we would love to hear from you.

Chairman: Kyle Stoneham
Secretary/Treasurer/Membership: Graham Simmonds
Events and Sponsorship: Kyle Stoneham
Measurement: Ricky Tagg
Class Training: David Hivey
Webmaster: Kyle Stoneham

Class measurers are located across the UK, if you need a certificate and don’t know where to go let us help…

Latest International Moth Class Rules

Join the Class


Sponsors & Partners

Moth Manufacturers

Maguire boats

The Maguire Exocet is the current world leading Moth, designed by Kevin Ellway and manufactured by SimonMaguire in New Milton, Hampshire UK.
The Exocet currently holds all major UK, European and World Championship titles.

Aardvark Racing

Mike Cooke has been sailing and building moths since before the foiling era, his innovative approach has ensured that the Rocket design remains competitive. Dylan Fletcher has proven this by taking the UK championship in 2017 and more recently the 2018 Foiling Week title on the SSD solid wing platform beating the highest level competiton.

Lennon Thinnair

It’s been a long time coming but reports that the first production Thinnairs are almost ready will be music to the ears to those on the waiting list.
Mike Lennon a highly accomplished moth sailor and sail maker has been testing the prototype with some success during 2018.


So much of the moth class history had gone missing. Few people appreciated the interest there would be in old yearbooks, photos, design drawings and articles. But it seems Mothies are horders and since we posted this section, over 200 photos and scans have been sent in.

This section features yearbooks, brochures, posters etc. And the ‘archive photos’ pages have period photos. Continue reading “Archives”