Class 4 Test by Multicoque Magazine
Sea trial report from Philippe Echelle


Go fast, go far … with pleasure

Our Class 4 is a wonderful platform for anyone looking for a fast and easy to sail catamaran (short handed) ; able to achieve 250miles/day in comfort.

Class 4 is a fast yacht with a light displacement of 6700kg thanks to the quality of workmanship, composite material and brands used. She will definitely shine in any race with a slim hull achieving exceptional upwind capability.  Performance is key for security and stability during long passages.





Most catamarans are sold during boat shows. But in a boat show … you do not face huge waves … you do not have to go upwind for hours … you do not have to go fast to run away from bad weather … and you do not feel bad due to an unbalanced catamaran. If you did, you would certainly go for an O Yachts proven model.


Strong as a rock

Few boat builder offer a carbon reinforced structure as an option ; this is as standard on Class 4. Carbon is used for the front and central beam, bowpole, mast pilar, pilar beam, aft beam. As standard we also include kevlar shield on hull.

We also assemble by hand all composite panels that are not structural ; this way, they become structural after hand lamination. The process represents hundreds of labour hours. Sofa, kitchen, stairs, floor, bed, are structural and will not produce a single “crack” when you walk on the boat at night.

How fast ?

Fact : sister ship ENA raced on ARC 2014 ; she finished first in the multihull real time category with a maximum speed of 27kts. Class 4 is a proven winner. Thanks to Erik lerouge, our naval architect for his brilliqnt hull design and structure optimization

{After sailing over 4000 miles on Class 4, she will go upwind 25% faster than wind from 3 to 9kts real wind. That means you will be the only one not to turn on the engine when there is almost no wind.

Then when wind is about 10 to 15kts, you will be over 10kts. At 20/25kts, you will go driving for 14 to 19kts with reduced sails area in perfect comfort as Class 4 is perfectly balanced.}

Once arrived at your destination, relax with…

O Yachts also provide a comfortable environment with:
. Comfortable aft platform (4.5m x 1.1m). Perfect for sunbathing at anchor

. Huge interior living area (from 4.5m by 3.15m) fully customizable

. Large beds (1.40m/1.60m x 2m) in both aft cabins

. Heating and A/C in cabins, as well as washing machine options

These options obviously have an effect on weight and budget… try to keep your boat as lean as possible.