The chief characteristic, however, is the fin, or in effect a fixed centreboard carrying a weight of lead on its lower edge sufficient to give the craft stability enough to balance the rigging and press of wind in the sails. The most successful fin-keel boats have a length on water equal to three-and-a-half beams, and as the section of the hull is round or nearly so, stability is gained in a manner already explained. [Illustration: Fin-keel and bulb.] The first of this style of craft was built and launched in the autumn of 1891, and was called 'Dilemma'; she had a very moderate-sized rig, the jib-stay being secured to the extreme point of the bow, but with this she easily beat the old style of cat-boat, and showed, besides unusual speed, many other desirable qualities. In 1892 the fin-keel boat was generally introduced, three or four sailing in Boston waters, while New York, the Lakes, and Buzzard's Bay claimed one each to two in their home waters of Narragansett Bay. [Illustration: 'Consuelo,' cat-yawl.] The 'Wenona' and 'Wee Winn,' the first in the North and the latter in the South of England, showed our friends on the other side of the sea what their racing qualities were, which are soon told by referring to their record. Out of twenty starts made by 'Wenona' she won 17 first, 2 second, and 1 third prizes, and her sister in the South was even more fortunate, winning 20 first and 1 second prizes out of twenty-one starts. The fin-keel type at home was almost as successful, except when brought into competition with a centreboard boat of sloop rig, 21 ft. length on water-line, called 'Alpha.' She was built and designed by the projector of the fin-keels, and was the chief member of a large 21-foot class that was fully exploited in Boston during the season of 1892, where the 'Alpha' won in every race she entered. The value of the fin-keel type in adding to the resources of yachting is limited; the type does not contribute anything of living value to yachting, it serves only as a means to show that old types can easily be beaten, but that it takes a 'machine' to do it. Fin-keels are, it is true, very pleasant to sail in, and they work beautifully, but the design is probably limited in size to 35- or 40-ft. water-line in length, for above that size the fin becomes a very troublesome adjunct in its handling and adjustment. When the boat is afloat the fin is not objectionable, but in taking the bottom by accident, or in hauling it out, it makes the boat most troublesome to handle.