surface sonar
41NCSM Onondaga — Pour les articles homonymes, voir Onondaga. 48°31′0″N 68°28′0″O / …
42Defence Research and Development Organisation — Sanskrit: बलस्य मूलं विज्ञानम् Strength s Origin is in Science [1] Agency overvi …
43Type 052C destroyer — The Type 052C destroyer (NATO code name Luyang II class, often referred to as Lanzhou class after the lead ship name) is a class of destroyer built by the People s Republic of China. Two Type 052C (Lanzhou class) air defence missile destroyers… …
44Type 23 frigate — HMS Somerset Class overview Name: Type 23 class Builders: Yarrow Shipbuilders and …
45Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
46warning system — ▪ military technology Introduction in military science, any method used to detect the situation or intention of an enemy so that warning can be given. Because military tactics from time immemorial have stressed the value of surprise… …
47Zumwalt class destroyer — Artist rendering of the Zumwalt class destroyer Class overview Name: Zumwalt Builders: General Dynamics …
48Type 053 frigate — Jianghu class (Type 053H) is the NATO code name for several types of frigates, currently in service with the People s Liberation Army Navy (PLAN). In the PLAN, the Jianghu class is part of the Type 053 series frigate family. The early variants… …
49Halifax class frigate — HMCS Regina (FFH 334) Class overview Name: Halifax class frigate Builders …
50Sonobuoy — 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… …
