sonobuoy pattern

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• Sonobuoy — A sonobuoy (a portmanteau of sonar and buoy) is a relatively small (typically 4⅞ inches, or 124 mm, in diameter and 36 inches, or 910 mm, long) expendable sonar system that is dropped/ejected from aircraft or ships conducting anti submarine… …   Wikipedia

• USS Willis (DE-395) — USS Willis (DE–395) is an Sclass|Edsall|destroyer escort, the first United States Navy ship so named. This ship was named for Ensign Walter Michael Willis (14 January 1917 7 December 1941). He enlisted in the Naval Reserve as a seaman 2d class at …   Wikipedia

• Geophysical MASINT — is a branch of Measurement and Signature Intelligence (MASINT) that involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and… …   Wikipedia

• USS Tripoli (CVE-64) — The first USS Tripoli (CVE 64) was an Casablanca class escort carrier of the United States Navy.She was built under a Maritime Commission contract (MC hull 1101) at Vancouver, Washington, and was laid down by the Kaiser Shipbuilding Co. on… …   Wikipedia

• Anti-submarine warfare — (ASW or in older form A/S) is a branch of naval warfare that uses surface warships, aircraft, space craft or other submarines to find, track and then damage or destroy enemy submarines. Like many forms of warfare, successful anti submarine… …   Wikipedia

• Signals intelligence in modern history — This article is a subset article of the article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with signals intelligence in the… …   Wikipedia

• U.S. Carrier Group tactics — Naval tactics have played a crucial role in modern battles and wars. The presence of land, changing water depths, weather, detection and electronic warfare, the speed at which actual combat occurs and other factors especially air power render… …   Wikipedia

• Actions of 7/8 May 1945 — The last actions in British coastal waters and the last actions of the Battle of the Atlantic took place on 7/8 May 1945.BackgroundDuring the first 5 months of 1945 the U boat Arm (UbW) of the German navy dispatched 125 U boat patrols to the… …   Wikipedia