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 defenses on the turret's exterior were very detailed. Inside, a thick layer of iron boiler plate was installed, with T-shaped beams securely attached. The gaps between the beams were then filled with wooden slats.