Looking to get the utmost performance out of your 420, then there are a range of resources available from tuning guides to beginner's guides to online video.

Most sail and spar manufacturers have produced tuning guides to optimise their specific equipment, so do use the guide relevant to your equipment. If you think we have missed any from the list below, please email: office@420sailing.org

Follow the guidelines, but always experiment and try finding your own trim. The weight of the crew, the balance of the boat, the stiffness of the mast together with specific local wind and sea conditions all have influence on the fastest and final trim.