I've not seen one in use lately, but the problem with yachts when out side is that they are prone to blowing over if left unattended on these type of stands. The other version is similar to the stool type, but one side is much shorter, and the fin rests on a cross bar near the bottom of the legs. The idea is that the boat lays over at about 45 dgrs. or so, with the keel facing into wind, so the wind blows over the hull and sails, and not against. At our club, all the boats are left laying on the grass when not being sailed.
