The armour protection of the turrets was quite elaborate. The inside of the turret was lined with  of iron boiler plate to which T-shaped beams were bolted. The space between the beams was filled with  of wood.
The armor protection of the turrets featured multiple layers. The interior surface was covered in iron boiler plate, to which sturdy T-shaped beams were fastened. The space between these beams was then filled with wooden planks.