Keywords: USS Grenadier (SS 525).jpg en 090529-N-0000X-060 KEY WEST Fl - In this undated file photo Lt Cmdr Ted Davis center marks a Z on the sail of the Tench-class diesel submarine USS Grenadier SS 525 as Commander Submarine Squadron 12 Capt Fritz Harlfinger lef and Commander Submarine Division 122 Cmdr Brez Betzel look on Davis was able to claim the mock Z after tracking a Soviet Zulu-class submarine for more than 18 hours leading to the first documented evidence that the Soviet Union was conducting submarine operations in the Atlantic Ocean The event was an intelligence coup for the U S military U S Navy photo/Released http //www navy mil/view_image asp id 72150 U S Navy photo/Released undated History of Key West Florida Images by Alaniaris/PD uploads PD-USGov-Military-Navy USS Grenadier SS-525 |