The shape of hulls are so complicated that they aren't protected by patent - they are protected by copyright. It is the opinion of the federal government of the united states that a hull is not "designed" or "invented." It is a work of art that is protected for over 100 years.
On Thu, May 22, 2014 at 11:40 PM, Kevin Crowley <[hidden email]> wrote:
I just started looking at a few equations and my brain started overheating. I'm going back to NACA airfoils.
> The shape of hulls are so complicated that they aren't protected by patent
> - they are protected by copyright.
A lot of good representations of them can be produced by a mathematical
formula however, which nicely dodges the issue 8) or many of the
traditional designs which are out of even the USA's rather extreme
The thing to model though isn't the shape of the hull, at least for a
smaller traditional wooden boat. Model the spars and the internal
structure, the shape of the planking derives from that - it really is a
use of the "hull()" operator.