Design calculations would be very helpful, but this vessel was designed and fabricated in 1993 and the design calculations cannot be procured at the moment. My assumption is that the U-1A was completed before the U-2A. It seems that the company associated with the U-1A assumes a 22% thinning...
That was my thoughts exactly. I just wasn't sure if there was a place in code that it talks about a situation such as this. Thank you for your comment.
We recently received a job for a Fitness for Service on a Vessel. I was going through the U-1A and U-2A forms and noticed that the minimum head thickness was different between the two forms. The minimum head thickness was lower on the U-1A form than the U-2A form. My original thought was to use...
