Website: Aluminium Search

Copyright © 1989 – 2011 Michael Kasten.  http://www.kastenmarine.com/aluminum.htm

Aluminium Boat

Single Chine Metal Hull Construction

Pro’s

-“For things that go bump in the night. For ease of construction. For longevity. For good resale value. For the benefit of being able to create a custom design and build it economically, without the huge penalty of having to build a mold first, as with fiberglass. For freedom from the stench of fiberglass, and from the dread fiberglass boat pox. For repair-ability. For lightness and strength. For the competitive edge in performance. And most importantly, for the security of safe cruising.”

“Aluminum is light, strong, corrosion-resistant, non-sparking and weldable. Because aluminum is not abrasion-resistant, it can be cut with carbide tools.  Aluminum is subject to electrolysis, pitting and crevice corrosion, but these liabilities can be managed as long as the installation of dissimilar metals and electrical items are correctly done.  After that, it is a matter of attending to these matters during the life of the boat.”

Con’s

-“In terms of seakindliness, some boat shapes may be better if built in steel. Aluminum’s extreme lightness can introduce a faster pitching and rolling motion in some hulls. For example, very beamy boats will exhibit a gentler roll if built in steel. Fairly narrow or light-displacement boats, which tend to have a narrower waterplane and less inherent form stability, will benefit most from aluminum construction.  These are of course generalizations.  Given a blank sheet to begin a design, the roll behavior will be considered along with the choice of materials.”

Plasma cut sheets


  • Talking to Jase (lecturer) also need to be aware of how manageable and organic shapes are.
  • How many ways can bend
  • Will be plasma cut, router-ed or water jet (oxidizes edge).



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