The Maples Group IRC European Championship brought an exciting close to September’s sailing festivities with four remarkable ...

The International Standard defines 4 Design Categories for boats broadly related to ocean, offshore, coastal and local sailing. These are analogous (but not directly related) to the World Sailing ...

Seahorse – the official magazine of the Royal Ocean Racing Club – continues to be the world’s foremost sailboat racing magazine. All IRC certificate holders can enjoy an automatic subscription to ...

mmoc is defined by ISO 12217-2. It is the anticipated minimum weight that the boat will be when in use.

b) IRC Displacement is directly related to Boat Weight. Any addition to Boat Weight will be reflected by a relative increase in IRC Displacement. c) The calculated value of DLR is rounded to the ...

The following IRC Rule changes were approved by Congress in October 2017: ...

We often receive enquiries about the effect on IRC rating if items of fitted interior are removed, in particular from production boats, e.g. tables, doors, floorboards, standard fittings such as ...