Recent content by rogerdavis

The rivets do have a lower profile than bolts and if the framework structure is well thought out and riveted, then when the deck is joined to the framework a "torsion box" is formed. a hollow core door is an example of a torsion box that is skinned on both sides: dimensionally stable, flat...

I p/u a grumman Rouge as a "project" boat. Since stripper her to framework, I have discovered 4 of the aluminum crossmembers are fractured in half and 1 has a hairline fracture. The crossmembers were welded once and fractured again. As a result, there are 4 fatigue cracks in the hull, the...