The Lightning sail boat
, a 19 foot trailerable centerboard sloop, was originally designed by Sparkman & Stephens as an affordable family day-sailor and racing boat. She has evolved into one of the most popular and competitive one-design racing classes in the world. Awarded ISAF International Class status, the Lightning is sailed in more than 13 countries and in the Pan American Games, and the class provides a professionally-managed association that is among the largest in all of one-design sailing.