So how much is the keel of a sail boat worth in lead weight. watch the video to see the basic math. so how much is the keel of a sail boat worth in lead weight. watch the video to see the basic math.. I've made a sailboat hull with these dimensions: 17 feet long, 2.5 feet wide, 2 feet from top to bottom. i've made a swing keel which -- when extended -- hangs 3 feet below the bottom of the boat.. The bénéteau 31, here in "keel and centerboard" version, is a 30’6” monohull sailboat designed by jean marie finot and pascal conq.she was built by bénéteau (france) and made of monolithic fiberglass / polyester. the production started in 2007 . the bénéteau 31 has also been marketed as océanis 31 and is as well listed, on boat-specs.com, in version deep draft and shoal draft..
The a27, here in "fin keel" version, is a 27’5” monohull sailboat designed by michel joubert and bernard nivelt.she was built by archambault (france) and made of monolithic fiberglass / polyester (composite infusion). the production started in 2012 . the a27 is as well listed, on boat-specs.com, in version swing keel and twin keel.. The reason i ask about the weight of a keel, is that i could buy the hull of a 60foot yacht for restoration, unfortunately the original old lead keel was removed sometime in the past (possibly stolen) and has been replaced with a concrete one which also now needs to be replaced.. The keel has two main functions: to keep the boat from being blown sideways in the wind (lateral resistance) and to hold the ballast. the ballast is a weight traditionally at the bottom of the keel that keeps the boat right-side up..
