The Mackay built 420 has consistently been sailed by world champion winning crews, right from the very first time the boat entered into a world championship

"Fast" just got redefined at the 2021 Moth Worlds with the Mackay built Bieker Moth being the choice of boat sailed by the top six.

Design and prototyping of the boat began after the 2017 Moth Worlds in Italy where focus went into minimising aerodynamic drag and heeling moment. To this day, the design continues to evolve based on feedback from sailors and new ideas and improvements from designers.