U-Boot Type XXIII Special Navy. This is the first kit of the new series called 'Special Navy'. This is a German submarine from the end of the Second World War. Two sprues of plastic parts with additional resin and photo-etched parts. The U boot type XXIII was one of the last submarines put into combat service by Germanyå«s Kriegsmarine. Its design was so progressive that it was used as a pattern for the post-War NATO Bundesmarineå«s Hai and Hecht submarines produced in the 1950s.