IOM Fin material
Posted: 13 Apr 2005, 08:02
Perhaps someone may be able to settle a discusion that is current in our club at the moment, are alluminium finns allowed in the rules ?? and if so is any one using them in competitions' ?
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![Confused :?](./images/smilies/icon_confused.gif)
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True, but in reality our boats spend very little time overall in the water. Aluminum fins are used commonly here in SoCal, and I've not seen any negative issues.edmorales wrote:having aluminum as a keel fin and lead as ballast in the presence of water can cause the aluminum to corrode due to galvanic process. disimilar metals are not recommended to sit next to each other unless either is coated with dacromet.
ed
A flat plate as a fin can be remarkably effective, especially if you do your best to round the leading edge, and chamfer the trailing edge. It'll never be as good as a "proper" foil with a "proper" aerofoil section, because it will stall rather early, its maximum lift will be modest, and it will give generally higher drag throughout. Apart from that, no problem!edmorales wrote:will a flat plate be effective?