Originally Posted by
henra
They are developing class 212CD for German Navy and Norway, which will effectively be a completely new boat which has little in common with the 212/212A apart from the number. Much bigger (more than 50% heavier), different shape (Diamond Shape), different drive tech being investigated but in any case two Diesel engines instead of one.
Honestly, I have no clue why they stick to the class number 212.
Maybe for the same reason that navies (including the RN) are buying ships displacing as much as a WW2 light cruiser and calling them "frigates"