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Clinker-built, also known as lapstrake-built, [1] [2] is a method of boat building in which the edges of longitudinal (lengthwise-running) hull planks overlap each other. Where necessary in larger craft, shorter hull planks can be joined end to end, creating a longer hull plank ().
The reason for this is that when the boat is level, the drain or other opening will always be above the waterline, and so water will only flow out. At sea, when the boat rolls in the waves, the opening may sometimes be below the waterline. If the seacock is open, water may flood the boat, causing it to sink. Sea valve at lower right
Then, on a single day, the cement is applied by a team of plasterers. The cement:sand ratio is a very rich 4:1. As the hull thickness is typically 2.5 to 3 cms, ferrocement is unsuitable for boats less than about 15 metres LOA as there is a weight penalty; above that length there is no penalty. Properly plastered ferrocement boats have smooth ...
Edit 2 Original color scheme and dots, fixed captions in arial font and reduced pointer line thickness Reason Great picture with great encyclopedic value Proposed caption A tugboat, or tug, is a boat used to maneuver large ships in harbours, over the open sea, or through rivers and canals. They also tow barges, disabled ships, and oil rigs ...
The move to carvel construction is believed to be another cost-saving measure (though it is felt that this is not well understood by marine archaeologists). [6] The difficult skill of mortising planks at precisely the right angle (where the hull is curved at the turn of the bilges) is avoided. Carvel construction allows hull shape to be ...
In 1959 the fiberglass 13-foot, 8-inch (4.2 m) hull Super Sailfish MK-II model was added to the lineup. The MK-II sported an aluminum mast and spars. The MK-II sported an aluminum mast and spars. The deck was available in red, white, blue, green, and yellow, with a five-panel Dacron sail in alternating panel colors to match the boat's deck color.