1/1800th scale Type IX submarine model. Certain elements not to scale.
The Type IX submarines consisted of 194 boats built under four different letter designations. Type A and B were so similar, they are represented by the same model. They were highly successful. They carried twenty-two torpedoes which could be deployed through four torpedo tubes at the front and two at the rear. They also carried at least one four-inch naval gun, along with various additional armament depending on the letter designation.
This is part of my collection of WWII warships, keep an eye out for more to come. If you have a specific request, message me and I'll bump it up my list.
Update 14 Aug 19: Adjustments for better printability.
Tested with PLA at .08mm layer height with .4mm nozzle.