GP14 Class.
The GP14 is a popular double hander with over 14,000 having been built. The hull is 4.27 metres long and weighs 132.9kg. It carries 3 sails a main and genoa of 12.85 square metres and a spinnaker of 8.4 square metres.
website: gp14.org
Tuning Guides: Sailboats tuning guide