Re: Building a Brockway
IMHO the biggest con to internal chine logs is that they catch and retain water unless you cut the top of the chine log at an angle. Notching frames is kind of a pain too. External chines have neither issue and are well-used by many designers (notably Bolger and Michalak). They also provide something to hold on to when the boat flips over ;-) They'll give a good "edge" to the fiberglass covering on the bottom and the screw heads will be inside the boat, down in the bilge where you can't really see them (as opposed to outside the planking, like with internal chine logs).
Originally Posted by Yeadon
They're also sort of easier to install, and I'm lazy like that.
The con is that some folks think they're ugly. They can probably interfere with water flow and/or increase drag and therefore lower efficiency, or something like that. Having a major structural member outside of your boat can theoretically make it more prone to damage too.
Just my opinion of course, your results may vary!
And if it doesn't work out
There'll never be any doubt
That the pleasure
Was worth all the pain