The purpose of the Vintage Sailplane Association (VSA) is to promote the acquision, restoration and flying of vintage sailplanes by its members, and to assist the National Soaring Museum in the preservation of soaring history and the promotion of vintage sailplane activity. A Vintage Sailplane is any glider of a type first flown prior to 1958, or a more recently built glider with appearance, performance and construction characteristics similar to gliders built before 1958.