Complex sentence: The solution to this was found in an ambitious design drawn up by Washington L. Capps, the chief of the navy's Bureau of Construction and Repair, which featured heavy armament and relatively thick armor, both favored by naval theorists.
Split into simpler sentences: The solution to this was found in an ambitious design drawn up by Washington L. Capps, the chief of the navy's Bureau of Construction and Repair. His plan featured heavy armament and relatively thick armor, both favored by naval theorists.