OK, I'm looking for feedback on the failure of my King brand saltwater trailer. I have a Kingfisher 2825 Pilothouse boat that I bought together with the trailer as a package. I've taken good care of the boat and trailer (I think), but this summer the box beam that makes up the tongue of the trailer snapped while I was towing it. There is no corrosion on the trailer where the failure occurred. Fortunately disaster was averted because it happened at the very end of a trip while I was on my residential street.
I contacted King and they had their engineers evaluate the failure based on my photos, and the engineer said in his report "My preliminary Conclusion, based on viewing only the photographs, is that other factors are involved in contributing to this failure other than a simple load on tube"
Then King said that the failure was my fault, due to not chaining the bow eye of the boat vertically downward to the tongue of the trailer. I've never heard of or seen such a thing. Everyone I've talked to including the dealer says that this type of failure should not have happened, and that if the tongue had been overloaded that the beam would have bent and not ripped.
I'm open to learning new things, and I have made plenty of mistakes in my life. If this IS my fault, then I'm totally willing to learn from my mistakes. However, I don't think that it is, but I'm interested in hearing opinions on it.