Question: USS Thach, is an "Oliver Hazard Perry"-class frigate, was a ship of the United States Navy, named after which World War II naval aviator, air combat tactician, and United States Navy admiral ?
Sentence (from "AN/SPS-49"): It formerly served in a complementary role aboard Aegis cruisers with the AN/SPY-1 but the systems are currently being removed during routine upgrade with no replacement.
Relevant evidence: No