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Basically, his keel fits into a solid laminate socket that is boxed by steel beams. Two pins go through the keel, beams and box, and prevent the keel from moving forward or aft, and effectively transmit the load from the encapsulated keel strut to the frame in the boat and the frame spreads the load around the surrounding hull. The three bolts on top seal the keel socket from leaking and also act to tension the keel and load it against the beams to make it as rigid as possible.
Dolphins have killed a number of sharks, including great whites. Usually more of them in a group than the GW, hence why they can get to them, hit them from all sides. I am sure a GW would win if a one on one occured.
Then again, Orca's get the best of sharks too! It i fun seeing the Dahl porpose around the sound frolicking about, along with local orca's.
marty
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