I'd like to share my latest project which had its first battle this past weekend. I hadn't created a build thread since I never remember to take pictures when I get zoned in during build sessions. Here is a beauty shot just before the bbs started flying: The hull, turrets and decks are from Strike Model. Most of the superstructure is 3D printed. Taking a look at the inside starting with the bow section: The bow section houses the 50z bottle and BC lightweight regulator. I'm not too happy with my regulator air distribution but it works for now. I still need to add some hose clamps but I'm debating switching over to push-to-disconnect fittings. To the left of the bottle can be seen the BC solenoid for the bow gun. Above the bottle is a wire bundle containing the voltage sensor and Turnigy bilge pump ESC. Moving amidships: Power distribution via the BC Multi-B board coated in E6000 and placed in a 3D printed housing. The water channeling is the self leveling concrete sealer. Engineering: The large space forward of the bilge pump is for the 12v 9ah SLA battery that powers the ship. One battery per sortie. The drivetrain consists of a Hobbywing 860 dual brushed ESC and a pair of 550 motors turning a BC single output gearbox. The magazine for the stern side mount can be seen wrapping around the bilge pump. Accumulators for the dual sterns can be seen outside of the drive motors. On to the stern: Solenoids for the dual sterns as well as the stern side mount can be seen. Additional water channeling was used to create a shelf to prevent too much water from pooling in the stern. The infamous $5 HK waterproof servo operates the rudder gear assembly. Under the stern: Pushing power is provided via a 2" BC propeller. The rudders are 3D printed and coated in XTC-3D. Drag props are 1.5". Bayern did better than expected for her first battle. No drivetrain issues and turning was excellent. Acceleration and deceleration was pretty good and I felt that overall I had good directional control. She completed 4 sorties without sinking although there was a close moment when she was taking on water from unknown ram damage. The 12V bilge pump emptied her out real quick though. All 4 guns fired without issue although they probably needed a little more tweaking for optimal discharge rate velocity.