I can tell you that I couldn't tack the thing to save my life. Tacking on my H17 was a breeze after learning to sail on the windspeed. The club might have an old windspeed sail unless they gave it a viking funeral. Puting hobie parts on it would probably be a good idea, from what I can remember, the Windspeed 15 was a kit boat, meaning most of the parts were "handmade".