Tirpitz

I did know that the Germany Navy was called the Kriegsmarine, which it was officially known as from 1933-1945. And I have actually heard of the term DKM, which is Deutsche Kriegsmarine, but I'm not sure the Germany Navy at the time ever referred to her ships as the "DKM Bismarck" or the "DKM Tripitz". Therefore is it true to say that the term DKM is an unofficial prefix, unlike the prefixes of all USS, HMAS & HMS ships, which are official parts of the ships name (eg the USS New Jersey). Cos now that I think of it, was IJN an official prefix?

Germany used DKM (Deutsche Kriegs Marine) for their prefix. I got this info from the discover channel web site on their Bismark special at this link

http://discoveryespanol.com/bismark/feature5.shtml