USS Stethem Enhances ASW Skills during SHAREM
File photo from September 2014. US Navy.
Stethem Enhances ASW Skills during SHAREM
PHILIPPINE SEA – Sailors aboard the Arleigh-burke class guided-missile destroyer USS Stethem (DDG 63) participated in the Ship Anti-submarine Warfare (ASW) Readiness and Evaluation Measurement (SHAREM) exercise, Dec. 8-12.
Stethem was joined by guided-missile destroyer USS Lassen (DDG 82) and a Virginia-class submarine to conduct an evaluation of ASW tactics. These exercises not only evaluated Stethem’s sensors, but also honed watchstander proficiency.
Stethem and Lassen flexed their active and passive sonar capabilities to detect underwater threats at the maximum ranges possible. The events were designed to test the full spectrum of ASW capabilities and tactics.
“SHAREM gave us the opportunity to train new technicians, and even I learned some new things,” said Sonar Technician Geographical First Class Erhrolejhan Navarro from San Jose, Calif. “We had Applied Physics Lab and Acoustic Physics Lab representatives on board who held invaluable training on active acoustic analysis and passive bottom ranging techniques.”
The exercise commenced Dec. 9 with a submarine familiarization. This event trained watchstanders on visual and electronic submarine detection techniques. SHAREM included freeplay events that placed the ship in a war-game scenario testing approach and attack techniques, and structured events designed to collect data on the effectiveness of dynamic maneuvering and torpedo evasion tactics.
The events as a whole focused on the fundamentals of ASW: search, detect, identify, track, and target underwater contact.
“We are constantly trying to improve our underwater threat detection and prosecution tactics so, the additional training was very welcomed and appreciated,” said Sonar Technician Geographical Third Class Samuel Zieglmeier from Cambridge, Minnesota.

Stethem is one of seven Arleigh-burke class guided-missile destroyers assigned to Destroyer Squadron 15 and is permanently forward-deployed to Yokosuka, Japan supporting security and stability in the Indo-Asia-Pacific region.
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