In reply to the glue topic and putting a hull together may I suggest Steel Flex 9000. I am going to start useing this on my wood propellers to protect the blades from water impact. Alot of guys like to apply this on their hulls to run as a slick bottom due to actually how tuff the material is. It is also basically usedon high traffic wood floors and table tops. I put an application on a wood plank as a test strip and did things like hit it with a hammer and and trying to pierce it with my knife and I tell you this stuff is tough and once it adheres to the surface the only way to get it off is sanding and you will be there for a while.

On the topic of air ducts and flipping boats I myself am having a hull laid up now and I am going to have the laminator put the bow angled down in the front side around 7 degrees to see how well the down force will help. The only time I had actually flipped one of my boats was wide open and doing a sudden hard turn.</p>