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    BALLAST, where and how much

    Hi I am refitting a boat. The new equipment is heavier than than the old equipment. I am wondering whether I should add ballast to the bow. Specs: Mono Hull Motor yacht with flybridge LOA: 43? Max Beam: 11? Previous displacement: 8.5 ton Centre of Buoyancy: 3.5m from transom I am adding an...
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    Actuator Installation Query

    Hi I have two engine room doors that I would like to fit electronic actuators to open. The doors weigh 50kg's and are 1460 mm (from hinge) by 1465 mm. I have attached a sketch of the installation I Would like to do. I plan on using one actuator per door. How do I calculate the minimum...
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    Volvo Penta SD6 2007 model to 2012 model

    Hi A couple of months ago I got a quotation for two Volvo Penta SD6 370hp engines. I did not go ahead with the purchase. 4 months later I requested to be quoted again and the price was 20% more (quite drastic difference when dealing in high numbers). The dealer told me that it was because the...
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