As for the question is "Destroyer" a proper name for a gigantic gun-bristling starship..... Destroyers didn't exist until torpedo-boats became more popular in WWI an Japan-Russian wars. Fast moving and armed with highly devastating weaponry (although they had to fire them from close-up in those days) this ships were able to wreak havoc among larger capital ships - they were manouverable enough to avoid direct fire from heavy-caliber guns and fast enough not to be caught by automatic weaponry. Destroyers were built as a countermeasure for this menaces and they proved very successfull. It wasnt until WW2 that destroyers became the backbone of the navies of that time. They were the middleman between heavy/escort cruisers and battleships (both "pocket size" - Like Scharnchost and "full size" - like Bismarck). They did well until missiles came onboard ships. After succesfull sunking of Egyptian destroyer by means of surface-to-surface missile (fired from the ships that descended from torpedo-boats > missile boats) destroyers began to be replaced by a frigates. Frigates are now ships of choice for almost any modern navy - fast, reliable, heavily armed and armoured ships able to hold their own against almost any opponent. Modern frigates are even stronger designs than destroyers of ,lets say, 1970's. Today only examples of destroyers in modern navies are Arleigh Burke class (USN) and possibly few types still in service in RN - russian (ex-soviet) destroyers i don't count because they had a very different classification and were called destroyers only by western navies. So lets get back to the subject.... Although those who know about ships do see sense in stuff like FFG, DDG etc, i don't think that the proper way to show all the firepower and brute force of a vessel (to the general public i mean) is to name it either with a codename or calling it a frigate or a battleship. But when you say a destroyer, and as such a star-destroyer then everybody knows what is it all about. I agree that ISD is not in the class of destroyer but lets not forget that every navy (then why not the imperial navy also) has its own classification of vessels (having seen the gigantic ships in the mod i can understand why ). Germany never named their battleships battleships because they were forbidden to have them by terms of peace treaty of Versay, but they called them pocket-ships and light-cruisers because they had the appropriate tonnage, but they were more powerfull than any heavy-cruiser or battleship that could be used by RN in Northern sea. Israeli's have their corvette class (can't get the name right now ) that is as powerfull or even more powerfull than any frigate that the navies of the Mediterranian sea can field. Same goes to Sweden and Norway. So i think that the ISD was called destroyer in the first place only because it sounded dreadful, menacing and powerful and i don't think that anybody had proper vessel classification in mind. By the way if anybody is interested in great books about space fleet combat take any book by David Weber. They're great...