קצת יותר מיידע ../images/Emo101.gif
This is from personal limited knowledge: The fin keel on ALiza was part of her whole design and was done by Bruce Roberts the naval architect who designed her. The choice for a fin keel has to do with the stability, performance as in sailing to the wind, waight, and speed as it has a relationship to the total wet area bellow the waterline. this is different from the more traditional full keel which we are compering it to. The nerrow smaller size fin has less wet area to the water so it has less resistance. it is also better shaped to provide "lift" for the keel to resist drift of the yacht and allow her to get better angle of sailing into the wind. The Skag wich olds the Rudder is quite a distance aft of the keel so the moment that it puts on Aliza´s COE "center of effort" allow her to respond faster then the "other keel" would. With that said you need to understand that Aliza is FAR from being a RACE yacht. Race yachts today have a much more nerrow fin with a WING at the bottom and Last I saw they had a rudder in front and back of the very nerrow long (deep)wing keel. Aliza is a CRUISING yacht made of steel and is very heavy by design and the more modern fin keel gives her a little better windward ability. I have sailed Aliza in very light wind and she sails SLOW however nice and under control. She sails much better with 15 to 25 KT wind speed and can get on a 33-35 degree off the wind (the apperant wind that is) so I think we made the right choice and enjoy her very much.