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Term: Image: Definition:
A pleasure boat more than 25 feet in length with a displacement hull.
Trim Tabs
Hydraulically adjusted horizontal plates located on the bottom of the transom that control the trim angle of a boat at speed.
A type of boat with three side-by-side hulls, the center of which is usually larger with crew accommodations.
Propulsion system where the drive shaft initially runs forward into a gear box and then runs aft and down through the hull. The driveline forms a V-shape with the gear box at the pivot point.
The intersection of the hull and the surface of the water.
Wing Keel
The wing is another shoal alternative to the deep fin. Instead of one bulb at the keel bottom, the wing has two bulbs laterally offset and connected via lead airplane wings. Or the wing is a thick foil of lead without bulbs.
Zinc Anodes (Zincs)
Small pieces of zinc that attach to metal boat and engine components to help protect them from corrosion due to electrolysis, an effect caused when dissimilar metals are placed in a saltwater solution.