Amateur boat building steel
Some of our boats have been built upside-down, with the sandblasting done before rolling over, so the sand will fall out easily. In process of rolling upright. If the alterations intended are of small magnitude, not affecting the structural plan or systems specifications, these changes may be made by the builder, preferably consulting us about the intended changes. Many different ones will work, and everybody uses what they like best or can afford. I do not have a distinct preference. Both computer professionals with absolutely no relation to any trade or any kind of handwork. This results in an extremely fair hull, as well as a highly accurate shape.
Building In Steel or Aluminum?
Michael Kasten's Notes on Metal Boats
These aren't absolute limitations for the amateur, but simply a general rule based on actual experience. In this case, the first task in the design cycle belongs to the owner, and that is to find a designer who can bring about the owner's vision and purpose for the vessel they have in mind. Naturally this concept has captured the imagination of the amateur metal boat building community, thus a possibly significant contingent among potential owner-builders. You see, steel, like plywood, is self fairing. Usually the deckhouse has lots of holes in it for the windows and hatches, and thus it may not be a major weight item. In considering any existing design, one should inquire as to whether the structure has been designed according to the standards of one or more of the yacht classification societies. They also serve to give insulation.
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Frames First or Plating First?
If the materials are not well chosen and well seasoned, there could be considerable movement in the structure as the wood shrinks and swells with moisture and humidity changes. Another factor of difficult comparison is what one considers the cost of building, considering the different possibilities of sophistication and installation aboard. If one potential builder is acquainted with fiberglass lamination and understands composite structures, single skin or sandwich construction are the best choices. Later, already belonging to a new owner, this boat went for a round the world trip. These matters are thoroughly addressed in the Vessel Specification which accompanies each of my designs, often amounting to some 50 to 80 pages..! That works good but is hard to do very smoothly. True, she needed a lot more energy expended to heat her in cool weather, but you could look at the shell plating all over, readily ascertaining it's condition.
Aluminum actually oxidizes quickly, but the process stops at the surface, as the outer layer of "rust" protects the inside. Metal or plastic wires pull curved flat panels into three-dimensional curved shapes. The Designer: Dennis has been in the architectural metal work field for more than 30 years. Coastal cruising is often harder on boats than offshore voyaging. Because aluminum is not abrasion-resistant, it can be cut with carbide tools.