[DOC] [TLE] Anti-Submarine Detection : Juno Beach Centre [PAR] They can close in on convoys without being detected, fire torpedoes and escape 
... The ASDIC is a sonar system for submarine detection developed by British, 
French ... is derived from that of the Anti-Submarine Detection Investigation 
Committee. ... as Canadian operators realized when tracking German 
submarines in the... [DOC] [TLE] ASDIC, Radar and IFF Systems Aboard HMCS HAIDA - Part 2 of 10 [PAR] ... called Asdic (named after the Anti-Submarine Detection Investigation 
Committee) and was ... The Germans were using submarines as weapons, and 
the allied forces were ... Exploring the use of sound to detect objects underwater 
was a hot topic, ... During the later part of World War I, submarine locators were 
developed. [DOC] [TLE] Sonar - Wikipedia [PAR] Sonar is a technique that uses sound propagation to navigate, communicate with 
or detect ... During World War I the need to detect submarines prompted more 
research ... story that it stood for 'Allied Submarine Detection Investigation 
Committee', ... Passive sonar arrays for submarines were developed from ADP 
crystals. [DOC] [TLE] ASDIC / Sonar - Technical pages - Fighting the U-boats - uboat.net [PAR] Oct 9, 2011 ... Postcards from WWI ... ASDIC was the primary underwater detection device used 
by Allied ... War One and further developed in the following years by the Royal 
Navy. ... Modern nuclear and diesel submarines use this tactic to this day. ... is 
derived from "Anti-submarine Detection Investigation Committee",... [DOC] [TLE] Sonar : detector of submerged submarines - traktoria.org [PAR] These equipments were useless in detecting any of the U-boats at sea ... In the 
closing months of World War I the Allied Submarine Devices Investigation 
Committee ... When World War I ended the Asdic Committee was dissolved; 
nations and .... About 1931 NRL developed the QB echo ranging Sonar for 
submarines. [DOC] [TLE] Covert Naval Blog: Developments in Technology of Submarine ... [PAR] Jun 10, 2011 ... The two primary problems of early submarine development were weapons and 
propulsion. .... Called ASDIC for Anti-Submarine Detection Investigation 
Committee by the British ... Tactics of submarine employment changed following 
WWI. ... For the allies in the European theatre submarines became a... [DOC] [TLE] Full text of "Sonar : detector of submerged submarines" [PAR] Throughout World War I the Navy's major investigations had been made at its 
experimental ... When World War I ended the Asdic Committee was dissolved; 
nations and ... About 1931 NRL developed the QB echo ranging Sonar for 
submarines. ..... Sonar was detecting the U-boats, but in the crucial moments of 
the attacks,... [DOC] [TLE] A Brief History of Active Sonar - Defense Technical Information Center [PAR] her maiden voyage on 15 April 1912 and (2) Allied shipping losses to ... ful 
underwater transducer developed was a 540-Hz electrodynamically ... emerge 
after World War I was the ultrasonic. ASDIC, a ... Submarine Detection 
Investigation Committee, was formed ... mary goal of detecting submarines near 
surface ships that... [DOC] [TLE] Sonar-Detector of Submerged Submarines - Scribd [PAR] Sonar : detector of submerged submarines (1946) by pharmkin in Types > Books 
... By 1916 the United States Navy had developed and installed an acousticai ... 
only effective method of detecting completely submerged submarines. however. 
... of World War I the Allied Submarine Devices Investigation Committee (ASDIC)
... [DOC] [TLE] A Brief History of Active Sonar - CSI Computerized Scanning and ... [PAR] her maiden voyage on 15 April 1912 and (2) Allied shipping losses to ... ful 
underwater transducer developed was a 540-Hz electrodynamically ... emerge 
after World War I was the ultrasonic. ASDIC, a ... Submarine Detection 
Investigation Committee, was formed ... mary goal of detecting submarines near 
surface ships that... [DOC] [TLE] Hydrophones, Sonar, and Other Listening Gear - Fleet Submarine [PAR] A number of devices were used both to detect submerged submarines, and to 
allow ... working after a close depth charge detonation until the core is 
remagnetized. ... (Asdic is an acronym for Anti SubmarineDetection Investigation 
Committee; ... commerce raider early in World War I. That

Question: After WWI the Allied Submarine Detection Investigation Committee developed this to detect subs
Answer: sonar