20 I have had this sportboat for several years and it is as fast as advertised. With the wide beam and flat bottom it is easy to get up on a plane. It very forgiving on the crew and pretty easy to fly the spinnaker (don't do much prefeed, just hoist away). It is a great boat for one design racing and a crew of three. With light winds and a tiller tamer it is possible to fly the spinnaker single handed. A lot of work but rewarding. Yes I recommend this as a good all around boat for flat water day sailing and racing!