Complex sentence: However, the Navy's Bureau of Construction and Repair (C&R), which designed the "Nevadas", considered triple turrets necessary to save space and weight, keep the citadel at a reasonable size and the armor protection maximized accordingly.
Split into simpler sentences: However, the Navy's Bureau of Construction and Repair (C&R), which designed the "Nevadas", considered triple turrets necessary to save space and weight. They also kept the citadel at a reasonable size and the armor protection maximized accordingly.